DevNet Associate (Version 1.0) – Final Exam Answers

DevNet Associate (Version 1.0) – DevNet Associate 1.0 Final exam Answers

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1. A pharmaceutical company wants to contract the services of a cloud provider to store employee data and company-specific applications with strict access security. Which type of cloud would be the most appropriate for this scenario?

  • community cloud
  • public cloud
  • hybrid cloud
  • private cloud

Explanation: Private clouds – Cloud-based applications and services offered in a private cloud are intended for a specific organization or entity, such as the government. A private cloud can be set up using the organization’s private network, though this can be expensive to build and maintain. A private cloud can also be managed by an outside organization with strict access security.

2. What is a function provided by an implementation of a read-only automation solution?

  • the ability to reduce risk by implementing security policies across the network infrastructure via automated changes
  • the ability to use GET and SET requests to retrieve and send data across the network infrastructure
  • the ability to use an automated request to audit configurations and manually deploy changes in order to implement compliance
  • the ability to implement network infrastructure that receives a configuration from a specific centralized server

3. Data is being sent from a source PC to a destination server. Which three statements correctly describe the function of TCP or UDP in this situation? (Choose three.)

  • The TCP process running on the PC randomly selects the destination port when establishing a session with the server.
  • UDP segments are encapsulated within IP packets for transport across the network
  • The TCP source port number identifies the sending host on the network
  • The UDP destination port number idenifies the application or service on the server which will handle the data.
  • The source port field identifies the running application or service that will handle data returning to the PC
  • TCP is the preferred protocol when a function requires lower network overhead

Explanation: Layer 4 port numbers identify the application or service which will handle the data. The source port number is added by the sending device and will be the destination port number when the requested information is returned. Layer 4 segments are encapsulated within IP packets. UDP, not TCP, is used when low overhead is needed. A source IP address, not a TCP source port number, identifies the sending host on the network. Destination port numbers are specific ports that a server application or service monitors for requests.

4. What type of attack targets an SQL database using the input field of a user?

  • buffer overflow
  • SQL injection
  • Cross site scripting
  • XML injection

Explanation: A criminal can insert a malicious SQL statement in an entry field on a website where the system does not filter the user input correctly.

5. Which command can be used on Linux and MAC hosts to get IP addressing information?

  • ipconfig
  • ip address
  • ifconfig
  • networksetup -getinfo

6. What are two reasons a network administrator would segment a network with a Layer 2 switch? (Choose two.)

  • to create fewer collision domains
  • to create more broadcast domains
  • to enhance user bandwidth
  • to isolale ARP request messages from the rest of the network
  • to eliminate virtual circuits
  • to isolate traffic between segments

Explanation: A switch has the ability of creating temporary point-to-point connections between the directly-attached transmitting and receiving network devices. The two devices have full-bandwidth full-duplex connectivity during the transmission.

7. Which tool might a developer use as part of a Continuous Integration pipeline in order to build and test source code?

  • SQL
  • REST
  • Docker
  • Jenkins

8. A packet is received by a server. The packet has a destination port number of 8008. What protocol or service is requested?

  • Telnet over SSH
  • RESTCONF
  • HTTP
  • NETCONF

9. A network contains multiple VLANs spanning multiple switches. What happens when a device in VLAN 20 sends a broadcast Ethernet frame?

  • Devices in VLAN 20 and the management VLAN see the frame.
  • All devices in all VLANs see the frame
  • Only devices that are connected to the local switch see the frame
  • Only devices in VLAN 20 see the frame.

Explanation: VLANs create logical broadcast domains that can span multiple VLAN segments. Ethernet frames that are sent by a device on a specific VLAN can only be seen by other devices in the same VLAN.

10. Which piece of software is responsible for creating and managing virtual machines, including allocating system resources to each virtual machine as needed?

  • supervisor
  • hypervisor
  • host operating system
  • hosted operating system

11. How is an Ethernet MAC address constructed?

  • The first 3 bytes represent the network upon which the host resides, and the last 3 bytes uniquely identify the host.
  • The first 3 bytes represent the vendor OUI, and the last 3 bytes are assigned uniquely by the vendor
  • The first 3 bytes are uniquely assigned by LANA, and the last 3 bytes represent the serial number of the host
  • The first 3 byles represent the vendor OUI, and the last 3 byles are assigned randorily by the operating system.

12. Which Cisco SDK works with ACI?

  • Cobra
  • IMC
  • UCS
  • Instant Connect

13. What platforms are provided by DevNet for community members to share solutions, tool kits, and other resources with each other?

  • communities
  • forums
  • sandboxes
  • exchanges

14. Which two data formats can RESTCON use when requesting data or responding with data? (Choose two.)

  • JSON
  • XML
  • YAML
  • YANG
  • HTML

15. Which DevNet resource would a developer use to look for a Python library that supports APIs for a specific Cisco product?

  • DevNet Learning Labs
  • Devlet Support
  • Code Exchange
  • DevNet Sandbox

16. A component was created with the intent of combining the disciplines and skills of Dev and Ops. This component created a new job role and implemented a best practices playbook for doing Ops with software methods. Which component matches this description?

  • Agile Infrastructure and Operations
  • the SRE approach
  • automated infrastructure
  • shared Version control

17. Match the DevNet exhange type with the decription.

DevNet Associate (Version 1.0) - Final Exam Answers 1

  • code – uses the GitHub API and human moderators to categorize and display related repositories
  • ecosystem – provides solutions across different technologies, industries, and geographies to jump start solution design and development
  • automation exchange – a collection of network automation use cases with different solutions and toolkits

18. Refer to the exhibit. A user is working on Ansible on the local NMS to manage remote network devices. Which file is the user creating?

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  • playbook
  • service
  • variable
  • hosts

19. Which DevNet resource would a developer use in order to test custom code in a production-like environment?

  • Devlet Support
  • DevNet Learning Labs
  • Code Exchange
  • DevNet Sandbox

20. In which situation would a company implement a reverse proxy as a security solution?

  • when the company has a database and needs to point to a DNS server that uses different IP addresses for development resources
  • when the company wants all responses to clients to look like they came from the same server instead of individual ones
  • when a hash is created based on the IP address of the request to a particular protected server
  • when responses frorri servers need to be sent over different paths to ensure quality response time to the client devices making the requests

21. A software development company specializes in being able to use whatever software development method their customer wants to use. One customer company wants to use the Agile method. What is a characteristic of this method?

  • a software development process that prioritizes responding to change over following a plan
  • a software development method that tracks closely with the software development life cycle
  • a process that was developed for manufacturing, but adapted to other industries
  • a more traditional sollware developical procGSs as they have used this proCESS ini past projects

22. A network engineer is creating a Docker container using the docker build command. If the engineer does not specify a tag, which tag will be used by default?

  • tag
  • latest
  • (a blank space)
  • default

23. Which component in the pyATS ecology handles bundling and running jobs?

  • AEtest
  • Clover
  • Genie
  • EasyPy

24. Which three avenues are available within DevNet for developers who need help with specific developer scenario questions concerning Cisco products? (Choose three.)

  • logging a ticket
  • posting to the DevNet zone
  • posting to a news group
  • posting to a community forum
  • posting to a Webex Teams space
  • posting on the Cisco Learning Network

25. A student who is interested in network programmability approaches an instructor for advice on learning more about the subject. The student is a kinesthetic learner who learns by doing. Which DevNet resource should the instructor consider telling the student about?

  • DevNet Create
  • DevNet Learning Labs
  • DevNet Express
  • DevNet Zone

26. What is the default shell commonly used on macOS and Linux?

  • tcsh
  • csh
  • Bourne
  • Bash

27. What is immutable infrastructure in DevOps?

  • infrastructure that is deployed with all component versions locked except for the ability to perform manual configuration changes
  • infrastructure that is only deployed and maintained in containers
  • infrastructure that is entirely maintained and deployed in code and never subjected to manual changes
  • virtualized infrastructure that is deployed as golden images

28. What is the most common cause of IT outages?

  • an engineer misconfiguring a device or network with manual changes
  • an experienced engineer using an open source product
  • an experienced engineer implementing a configuration using automation
  • a threat actor largeting the enterprise equipment

29. Which string of characters is used to identify the beginning of a new separate document when multiple documents are in a single YAML file?

  • three slashes “///”
  • three dots “…”
  • three pound signs “###”
  • three dashes “—“

30. What is the difference between functions and methods in the Python programming structure?

  • Functions can use global variables whereas methods can only use local variables.
  • Functions are called by a referencing object whereas methods are called by the names.
  • Functions can pass arguments whereas methods can pass only predefined keywords.
  • Functions are standalone code blocks whereas methods are code blocks associated with an object.

31. Which command is used to create a new Git repository?

  • git init
  • git add
  • git commit
  • git clone

32. Which stakeholder determines the useful value of software product features in the Lean process?

  • the customer
  • the Scrum master
  • the reviewer
  • the programmer

33. Match the SDLC phase with its description. (Not all options are used.)

q33.PNG

q33.PNG

requirements & analysis —> code is installed into a testing environment to look for bugs
implementation –> code is developed according to low level and high level design documents
deployment –> software is installed into the production environment

34. What is a principle of the Lean software development model?

  • adding additional product features that the customer did not ask for so that the customer is getting more than expected
  • assigning resources to multiple projects so that effort can be divided on more than one task at a time
  • making decisions as late as possible in the process so that more facts and details are available
  • ordering workers to do tasks they may not want to do to ensure they get done

35. What character is used to separate the key and value pairs in YAML?

  • colon :
  • semi colon ;
  • underscore _
  • forward slash /

36. Which git command is used to compare changes between files?

  • git diff
  • git merge
  • git checkout
  • git status

37. Refer to the exhibit. Match the missing components of the Python script for authenticating to the Cisco Network Services Orchestrator and obtaining a list of network devices using the username of “superadmin” and password of “soverysecure!”. (Not all options are used.)

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38. What is an example of a use supported by Cisco UCS Director and UCS Manager?

  • bare metal server provisioning and monitoring of virtual environments
  • call center and call management over IP networks
  • underlying central system workflow management and migration
  • telemetry data collection and analysis

39. How can a Webex Teams administrator retrieve additional details about a user through an API call?

  • by using the value of the organization name in the API call
  • by using the value of a Webex Teams registered email address in the API call
  • by using the value of the person id key in the API call
  • by using the value of orgld in the API call

40. Which library is the most commonly used Python library for connecting NETCONF clients with a NETCONF server?

  • posix
  • pyclient
  • ncclient
  • pypi

41. Refer to the exhibit. Match the missing components of the Python script for authenticating to the Cisco DNA Center and obtaining an authentication token using the username of “adminuser” and password of “Sup3rC1$c0”. (Not all options are used.)

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q41.PNG

q41.PNG

42. ????? a token using the username of “secureuser” and password of “C1$c0”. (Not all options are used.)

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  • Component1 = C1$c0
  • Component2 = password
  • Component3 = token

43. Refer to the exhibit. Match the missing components of the Python script for the following tasks. (Not all options are used.)

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Component 1 – delete
Component 2 – create
Component 3 – groups
Component 4 – text

44. Which two APIs allow for Cisco Meraki device provisioning and real-time notifications? (Choose two.)

  • Webhook API
  • Investigation API
  • Dashboard API
  • Enforcement API
  • Reporting API

45. A packet is received by a server. The packet has a destination port number of 443. What protocol or service is requested?

  • HTTP
  • NTP
  • DHCP
  • HTTPS

46. When thinking about the functional planes of a network, what is unique about the data plane?

  • It includes protocols used to remotely access network devices.
  • It includes the SSH protocol.
  • It manipulates data and outputs it in the XML format.
  • It is responsible for the switching of packets in hardware.

47. What is a characteristic of the continuous integration component of the CI/CD philosophy for software development?

  • Code changes are continually merged with the main branch of the application, so change sets are small.
  • Code changes are tested and integrated with the main branch then tested again before they are deployed into production.
  • Code is constantly deployed into production where users serve as the final testers.
  • Application development is performed in short sprints so that enough code is always in a deployable state.

48. Which Docker component defines the steps needed to create an image that can be deployed in a variety of environments?

  • UnionFS
  • Dockerfile
  • cross-site script
  • namespaces

49. Which three statements describe characteristics of a virtual machine? (Choose three.)

  • It is created and deployed using the Docker format.
  • It includes a guest operating system.
  • It runs on top of a hypervisor
  • It shares the operating system of the host computer.
  • It is completely self contained with its own emulated storage, memory, and network interfaces.
  • It requires Windows as the host operating system.

50. Match the use cases of a load balancer to the description. (Not all options are used.)

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round robin – sends requests to the next server on the list
blue-green – sends traffic to a new environment, but keeps the old environment ready in case of issues
canary – diverts a small amount of traffic to a new production environment that is changed

(Empty) – sends requests to the next server on diverts a small amount of traffic to a new production environment that is changed
(Empty) – sends requests to the server that is least busy

51. What are two characteristics of the staging environment of the four-tier deployment environment structure? (Choose two.)

  • It is the point where code has been tested multiple times and is error free.
  • It is structured as close as possible to the actual production environment.
  • It is where the code undergoes final acceptance testing in a realistic environment.
  • It is where end users will interact with the code.
  • It often includes automated testing tools such as Jenkins, CircleCl, or Travis Cl.

52. Refer to the exhibit. A network engineer has created a Jenkins pipeline. Which menu option would the engineer use to run the pipeline?

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  • Configure
  • Changes
  • Build Now
  • Workspace

53. A network engineer is configuring a Jenkins job and finishing with the following script in order to trigger the build:

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What is the purpose of the preparation stage?

  • It makes sure that any previous instances of a particular Docker container are stopped and removed.
  • It catches and removes any errors.
  • It runs the SUCCESS Docker container.
  • It places a log of any errors in the SUCCESS file.

54. Which technique is used to make the output of password hashing nondeterministic?

  • password length and complexity
  • multifactor authentication
  • password salting
  • password strength validation tools

55. What does self-service refer to in the context of enterprise IT?

  • imaging frequently used server configurations for rapid deployment
  • distributing and implementing broad access to public cloud infrastructure-as-a-service services
  • mainstreamed processes that promote a lower IT headcount by implementing automation
  • automated tools and methods that deliver preconfigured developer platforms on demand

56. Which statement describes the term orchestration in IT automation?

  • Orchestration is aimed at managing workload lifecycles and reacting dynamically to changing conditions in order to optimize processes.
  • Orchestration is the process of preparing a server through the installation of libraries or daemons.
  • Orchestration is the building, arranging, integration, and preparation of multi-component applications across multiple nodes.
  • Orchestration is the obtaining and provisioning of compute, storage, and network infrastructure.

57. What is an example of a read-only automation solution?

  • streamlining the management of L3 firewall rules in Cisco Meraki networks
  • gathering SD-WAN inventory data using Python and recording the values in a database
  • simplifying the automation of network device authentication, configuration, and consistency
  • gathering the current list of ACL entries on an IOS XE router and enforcing consistency

58. A student is setting up the CSR1000v VM in VirtualBox that is already installed on the local computer. The VM is imported to the VirtualBox and starts successfully. The student tries to verify communications to the CSR1000v VM by opening the Firefox web browser on the local computer and enters the URL https://192.168.56.101 . A security message “Warning: Potential Security Risk Ahead” appears. What is the security issue that results in this message?

  • The SSL/TLS certificate uses a public key size of less than 1024 bits.
  • The SSL/TLS certificate is self-signed by the router.
  • The CA for the SSL/TLS certificate cannot be reached.
  • The traffic to the VM is not encrypted.

59. How do APIs affect traditional IT tasks?

  • They are used to replace network infrastructure and implement network virtualization.
  • They are used to eliminate repetitive manual tasks and replace them with automation.
  • They are used to increase computer processing speed and lower power consumption.
  • They are used to increase hardware speed and lower power consumption.

60. Refer to the exhibit. PC1 needs to resolve the host name of the web server into an IP address by using DNS. What destination IP address and destination port number will PC1 assign to the DNS query packet?

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  • 192.168.20.2 port 80
  • 192.168.20.3 port 53
  • 192.168.20.3 port 80
  • 192.168.10.1 port 53

61. Which two statements are true about NTP servers in an enterprise network? (Choose two.)

  • There can only be one NTP server on an enterprise network
  • All NTP servers synchronize directly to a stratum 1 time source.
  • NTP servers at stratum 1 are directly connected to an authoritative time source.
  • NTP servers ensure an accurate time stamp on logging and debugging information.
  • NTP servers control the mean time between failures (MTBF) for key network devices.

Explanation: Network Time Protocol (NTP) is used to synchronize the time across all devices on the network to make sure accurate timestamping on devices for managing, securing and troubleshooting. NTP networks use a hierarchical system of time sources. Each level in this hierarchical system is called a stratum. The stratum 1 devices are directly connected to the authoritative time sources.

62. Match the steps with the actions that are involved when an internal host with IP address 192.168.10.10 attempts to send a packet to an external server at the IP address 209.165.200.254 across a router R1 that is running dynamic NAT. (Not all options are used.)

Match the steps with the actions that are involved when an internal host with IP address 192.168.10.10 attempts to send a packet to an external server at the IP address 209.165.200.254 across a router R1 that is running dynamic NAT. (Not all options are used.) 2

Explanation: The translation of the IP addresses from 209.65.200.254 to 192.168.10.10 will take place when the reply comes back from the server.

63. A network administrator can successfully ping the server at www.cisco.com, but cannot ping the company web server located at an ISP in another city. Which tool or command would help identify the specific router where the packet was lost or delayed?

  • traceroute
  • ipconfig
  • telnet
  • netstat

Explanation: The traceroute command provides connectivity information about the path a packet takes to reach the destination and about every router (hop) along the way. It also indicates how long a packet takes to get from the source to each hop and back.

64. Which two HTTP functions correspond to the UPDATE function in CRUD? (Choose two.)

  • POST
  • DELETE
  • PATCH
  • PUT
  • GET

Explanation: CRUD is an acronym that stands for CREATE, READ, UPDATE, and DELETE. The HTTP functions that correspond to CRUD functions are as follows:
GET -> READ
POST -> CREATE
PUT/PATCH -> UPDATE
DELETE -> DELETE

65. Match the term to the RESTAPI request http://example.com/update/person?id=42&email=person%40example.com. (Not all options are used.)

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66. Which HTTP status code category is used in the response to indicate that a REST API request contains an error on the client side?

  • 1xx
  • 2xx
  • 3xx
  • 4xx
  • 5xx

67. Refer to the exhibit. A network administrator is using a Python script to test a REST API request. The traceback message indicates that there is an error in the URI. What is the error?

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  • The protocol is wrong.
  • The resource path is wrong.
  • The SSL certificate is invalid.
  • The destination web host address is invalid.

68. What are two requirements for an application to communicate with a webhook provider? (Choose two.)

  • The application must support JSON.
  • The application must always be running.
  • The application must register a URL with the webhook provider.
  • The host where the application is running must have an SSH client installed.
  • The host where the application is running must have an SSH server running.

69. A student is learning network automation by using a REST API. The student sends a request to a network device and receives a response with the status code of 202. What does this status code mean?

  • The request was understood but has been rejected by the server.
  • The request was successful and typically includes a payload.
  • The request has been accepted for processing, but the processing has not been completed.
  • Because of a server error, the request cannot be fulfilled.

70. What are two characteristics of stateless applications? (Choose two.)

  • They must run on container orchestrators like Kubernetes.
  • They can be freely scaled across available capacity without disrupting ongoing customer connections.
  • They can be scaled only by redeploying them and destroying the data that users or operators previously needed.
  • They maintain the user state within the local user machine so that automation can work non-destructively.
  • They can store a user state in an accessible database separate from application servers and other components.

71. When thinking about the functional planes of a network, what is unique about the data plane?

  • It forwards data through a network infrastructure device.
  • It includes protocols used to remotely configure network devices.
  • It manipulates data and outputs it in the JSON format.
  • It includes network traffic being processed by EIGRP or OSPF.

72. A software development company specializes in being able to use whatever software development method their customer wants to use. One customer company wants to use the Waterfall method. What is a characteristic of this method?

  • A software development process that prioritizes responding to change over following a plan
  • A process that eliminates inefficient ways of working like expecting coders to multitask
  • A software development process that focuses on frequent delivery of working software as well as collaboration between developers and business employees
  • A software devilment process that can only go forward.

73. In which SDLC phase is the software product installed into the production environment to decide if it is ready for release?

  • implementation
  • deployment
  • design
  • testing

74. Which convention is used in Python to indicate that methods and variables in a class are private and not to be used outside of the class?

  • by using a single preceding underscore ( _ ) for a method or variable
  • by using the command class private classname() : to start the class definition
  • by using two preceding hyphens ( — ) for a method or variable
  • by declaring a private method or variable in the beginning of the class definition

75. A packet is received by a server. The packet has a destination port number of 80. What protocol or service is requested?

  • DHCP
  • Telnet over SSH
  • HTTP
  • RESTCONF

76. A network administrator is developing an application to control a Webex device through xAPI. Which three protocols can be used to access xAPI? (Choose three.)

  • Telnet
  • HTTP
  • XML
  • RS-232
  • FTP
  • JSON

77. Which type of request is used to send a message to a Webex Teams space using Python and the Messages API?

  • PUT
  • POST
  • GET
  • PATCH

78. A network administrator is assigned the 172.16.0.0/24 block of addresses to use in designing an IP addressing scheme. The administrator submits this design for approval:

  • 172.16.0.0/26
  • 172.16.0.64/27
  • 172.16.0.96/26
  • 172.16.0.128/27

What should be the response from the senior network engineer regarding this design?

  • This design is flawed because the 172.16.0.128/27 network number is invalid.
  • This design will work for the branch office.
  • This design is flawed because no design could have two networks that use a /26 mask and are not consecutive blocks of addresses.
  • This design is flawed because the 172.16.0.96/26 network is not a valid block of addresses.
  • This design is flawed because the 172.16.0.96/26 network overlaps with other addresses.

79. Which statement describes a stateful firewall?

  • It can filter packets based on information at Layers 3, 4, 5 and 7 of the OSI reference model.
  • It can determine if the connection is in the initiation, data transfer, or termination phase.
  • It can only filter packets based on limited Layer 3 and 4 information.
  • It can expand the number of IP addresses available and can hide network addressing design.

80. A software development company specializes in being able to use whatever software development method their customer wants to use. One customer company wants to use the Lean method. What is a characteristic of this method?

  • a process that eliminates inefficient ways of working like expecting coders to multitask
  • a software development process that focuses on frequent delivery of working software as well as collaboration between developers and business employees
  • a software development process that has the results of one phase feed into the next phase
  • a software development process that can only go forward

81. Refer to the exhibit. Match the Python coding information in the authentication request to the Cisco DNA Center to the location in the script. (Not all options are used.)

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82. A student is learning REST API application. The student constructs an URI to query the MapQuest API for a route from New York, NY to Boston, MA. What is the valid URI format?

  • https://www.mapquestapi.com/directions/v2/route?key== ke y&from==New+York%2C+NY&to==Boston%2C+MA
  • https://www.mapquestapi.com/directions/v2/route?key=key &from=New+York%2C+NY&to=Boston%2C+MA
  • https://www.mapquestapi.com/directions/v2/route?key: key &from:New+York%2C+NY&to:Boston%2C+MA
  • https://www.mapquestapi.com/directions/v2/route?key=key &from=New+York+NY&to=Boston+MA

83. Refer to the exhibit. A student constructs a URI to query the MapQuest API for a route from New Orleans, LA to New York, NY. Match the components to the MapQuest URL. (Not all options are used.)

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84. Refer to the exhibit. Match the Python code components to the function. (Not all options are used.)

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85. A software development company specializes in being able to use whatever software development method their customer wants to use. One customer company wants to use the Lean method. What is a characteristic of this method?

  • a software development process where the highest priority is to satisfy the customer through early and continuous delivery of valuable software
  • a software development process that can only go forward
  • a process that amplifies learning as well as delivers as quickly as possible
  • a more traditional software development process as they have used this process in past projects

86. Which scenario exhibits the “social proof” principle of human influence?

  • A user receives a phone call from someone claiming to be from the IT department who needs to verify user credentials.
  • A user visits a web site offering a free gift if the user provides contact information.
  • A user opens an email advertising a free trial on a website that is only available for a few hours.
  • A user completes a survey requesting personal information after seeing co-workers completing the survey.

87. Which SQL injection defense method should be used only as a last resort?

  • escaping all user-supplied input
  • using a database firewall
  • implementing whitelist input validation
  • using parameterized queries

88. Which type of ISE node provides network access, posturing, guest access, client provisioning, and profiling services?

  • monitoring
  • administration
  • pxGrid
  • policy service

Explanation: Check the Enable Session Services check box to enable network access, posture, guest, and client provisioning services.

89. Which communication protocol does Ansible use to connect to remote devices?

  • Telnet over VPN
  • HTTPS
  • Secure FTP
  • SSH

Explanation: Ansible communicates with remote machines over the SSH protocol. By default, Ansible uses native OpenSSH and connects to remote machines using your current user name, just as SSH does.

90. Refer to the exhibit. Router R2 is configured with static NAT. Place in order the steps that occur when the client accesses the web server through the router. (Not all options are used.)

  • Step 1 – The client uses the inside global…
  • Step 2 – R2 receives the packet on its outside interface…
  • Step 3 – R2 replaces the inside global address with the inside local address of the web…
  • Step 4 – The web server uses the outside global address of the client as the dest…
  • Step 5 – R2 receives the packet from the web server. R2 checks the NAT table, then translates the source…

91. Refer to the exhibit. What is the function of the identified missing information in regards to the parameter and method contained in the request?
The exhibit contains the following Python code:import requests access_token = ‘your_token_here’url = ‘https://webexapis.com/v1/rooms’headers = { ‘Authorization’: ‘Bearer {}’.format(access_token), ‘Content-Type’: ‘application/json’}params={‘title’: ‘___?____’}res = requests.post(url, headers=headers, json=params)print(res.json())

  • A Webex Teams space will be identified by using a specified title, and additional details will be retrieved.
  • It provides the name for a Webex teams space to be deleted.
  • A Webex Teams space will be identified and a message will be posted with the title specified.
  • It provides the name for a new Webex teams space.

92. A student is learning network automation by using a REST API. The student sends a request to a network device and receives a response with the status code of 202. What does this status code mean?

93. What is an architectural constraint to which a true RESTful API web service must adhere?

  • It must support XML-RPC and JSON-RPC.
  • It allows resource caching.
  • It should be behind a firewall.
  • It operates as a cloud service.

Case 2:

  • It operates in a stateless way.
  • It uses HTTPS to transport data.
  • It must operate along with a DNS server.
  • It operates as a cloud service.

Explanation: These are the REST constraints:

  • -Client/server
  • -Stateless
  • -Cache
  • -Uniform interface
  • -Layered system
  • -Code on demand

94. A packet is received by a server. The packet has a destination port number of 53. What protocol or service is requested?

  • DNS
  • NetBIOS (NetBT)
  • POP3
  • IMAP

95. Which statement accurately describes dynamic NAT?

  • It always maps a private IP address to a public IP address.
  • It provides an automated mapping of inside local to inside global IP addresses.
  • It provides a mapping of internal host names to IP addresses.
  • It dynamically provides IP addressing to internal hosts.

Explanation: Dynamic NAT provides a dynamic mapping of inside local to inside global IP addresses. NAT is merely the one-to-one mapping of one address to another address without taking into account whether the address is public or private. DHCP is automatic assignment of IP addresses to hosts. DNS is mapping host names to IP addresses.

96. A packet is received by a server. The packet has a destination port number of 830. What protocol or service is requested?

  • NTP
  • DHCP
  • NETCONF
  • HTTPS

Explanation: By default, the NETCONF server on the device runs on TCP port 830 and uses the SSH process for transport. A NETCONF session can be established by using an SSH client and specifying port 830 when connecting to the device

97. Which programming language is supported by the Webex xAPI to develop macros for on-device customization?

  • Java
  • Python
  • JavaScript
  • C++

98. Which Cisco management system is designed as the solution for Software-Defined Networking and runs on Nexus 9000 hardware?

  • Application Centric Infrastructure platform (ACI)
  • IOS XE
  • Nexus Operating System (NX-OS)
  • DNA Center

99. A developer issues a Linux command python3 -m venv devenv . What is the developer trying to achieve?

  • to install the devnet tool sets in the Python 3 virtual environment named venv
  • to create a Python 3 virtual environment named devenv
  • to activate the Python 3 virtual environment named devenv
  • to enter the Python 3 virtual environment named venv using the devnet tool sets

100. Refer to the exhibit. Match the missing components of the Python script for the APIC-EM REST API request for the user “secureuser”. (Not all options are used.)
DevNet Associate (Version 1.0) - Final Exam Answers 22
Answers:
DevNet Associate (Version 1.0) - Final Exam Answers 23


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noman
noman
1 day ago

Hi admin! Is these questions are still valid? I am planning to give an exam soon

Givy
Givy
6 days ago

What is an architectural constraint to which a true RESTful API web service must adhere?

It must operate along with a DNS server.
It operates in a stateless way.
It uses HTTPS to transport data.
It operates as a cloud service.

robheve
robheve
14 days ago

Just so others know and understand, I don’t think this is a dump. I took the exam and not a single question on here was on it. Not one. Be warned, this is not dump but merely to help you study.

sandhya
sandhya
19 days ago
  • Which statement accurately describes dynamic NAT?
  • It always maps a private IP address to a public IP address.
  • It provides an automated mapping of inside local to inside global IP addresses.
  • It dynamically provides IP addressing to internal hosts.
  • It provides a mapping of internal host names to IP addresses.
sandhya
sandhya
19 days ago
  • A packet is received by a server. The packet has a destination port number of 830. What protocol or service is requested? NTP
  • DHCP
  • NETCONF
  • HTTPS
Alexander Morales
Alexander Morales
23 days ago

What is the correct answer?, thank you   The exhibit contains the following Python code:import requests access_token = ‘your_token_here’url = ‘https://webexapis.com/v1/rooms’headers = {  ‘Authorization’: ‘Bearer {}’.format(access_token),  ‘Content-Type’: ‘application/json’}params={‘title’: ‘___?____’}res = requests.post(url, headers=headers, json=params)print(res.json())Refer to the exhibit. What is the function of the identified missing information in regards to the parameter and method contained in the request? A Webex Teams space will be identified by using a specified title, and additional details will be retrieved. It provides the name for a Webex teams space to be deleted. A Webex Teams space will be identified and a message will be posted with the title… Read more »

professor_x
professor_x
24 days ago

Which programming language is supported by the Webex xAPI to develop macros for on-device customization?

  • Java
  • Python
  • JavaScript
  • C++             
professor_x
professor_x
24 days ago

one more

Which Cisco management system is designed as the solution for Software-Defined Networking and runs on Nexus 9000 hardware?

  • Application Centric Infrastructure platform (ACI)
  • IOS XE
  • Nexus Operating System (NX-OS)
  • DNA Center             
professor_x
professor_x
24 days ago

More one

A developer issues a Linux command python3 -m venv devenv . What is the developer trying to achieve?

  • to install the devnet tool sets in the Python 3 virtual environment named venv
  • to create a Python 3 virtual environment named devenv
  • to activate the Python 3 virtual environment named devenv
  • to enter the Python 3 virtual environment named venv using the devnet tool sets             
biloo
biloo
25 days ago

Hi admin! is this question are still valid, I have an exam soon?
Thank you

chandima
chandima
1 month ago

A student is learning network automation by using a REST API. The student sends a request to a network device and receives a response with the status code of 202. What does this status code mean?

  • The request was understood but has been rejected by the server.
  • The request was successful and typically includes a payload.
  • The request has been accepted for processing, but the processing has not been completed.
  • Because of a server error, the request cannot be fulfilled.
chandima
chandima
1 month ago

A student is setting up the CSR1000v VM in VirtualBox that is already installed on the local computer. The VM is imported to the VirtualBox and starts successfully. The student tries to verify communications to the CSR1000v VM by opening the Firefox web browser on the local computer and enters the URL https://192.168.56.101 . A security message “Warning: Potential Security Risk Ahead” appears. What is the security issue that results in this message? The SSL/TLS certificate uses a public key size of less than 1024 bits. The SSL/TLS certificate is self-signed by the router. The traffic to the VM is not encrypted.… Read more »

biloo
biloo
1 month ago

Q42 :

Component1 = C1$c0
Component2 = password
Component3 = token

Erdal
Erdal
1 month ago

Refer to the exhibit. Router R2 is configured with static NAT. Place in order the steps that occur when the client accesses the web server through the router. (Not all options are used.) Step 1 – The client uses the inside global… Step 2 – R2 receives the packet on its outside interface… Step 3 – R2 replaces the inside global address with the inside local address of the web… Step 4 – The web server uses the outside global address of the client as the dest… Step 5 – R2 receives the packet from the web server. R2 checks the NAT table, then translates… Read more »

akhil
akhil
1 month ago

The exhibit contains the following Python code:import requests access_token = ‘your_token_here’url = ‘https://webexapis.com/v1/rooms’headers = {  ‘Authorization’: ‘Bearer {}’.format(access_token),  ‘Content-Type’: ‘application/json’}params={‘title’: ‘___?____’}res = requests.post(url, headers=headers, json=params)print(res.json())Refer to the exhibit. What is the function of the identified missing information in regards to the parameter and method contained in the request? A Webex Teams space will be identified by using a specified title, and additional details will be retrieved. It provides the name for a Webex teams space to be deleted. A Webex Teams space will be identified and a message will be posted with the title specified. It provides the name for a new… Read more »

akhil
akhil
1 month ago

A student is learning network automation by using a REST API. The student sends a request to a network device and receives a response with the status code of 202. What does this status code mean?

akhil
akhil
1 month ago

16. What is an architectural constraint to which a true RESTful API web service must adhere?
a) It must support XML-RPC and JSON-RPC.
b) It allows resource caching.
c) It should be behind a firewall.
d) It operates as a cloud service.

akhil
akhil
1 month ago

What is an architectural constraint to which a true RESTful API web service must adhere?

akhil
akhil
1 month ago

A packet is received by a server. The packet has a destination port number of 53. What protocol or service is requested?

Yaswanth
Yaswanth
1 month ago

which type of request is used to to send a message to a webex teams space using python and the messages API
patch
Get
post
put

pvv
pvv
1 month ago

Refer to the exhibit. Match the missing components of the Python script for the APIC-EM REST API request for the user “secureuser”. (Not all options are used.)


NTS
NTS
1 month ago

Which communication protocol does Ansible use to connect to remote devices?

  • Telnet over VPN
  • HTTPS
  • Secure FTP
  • SSH
NTS
NTS
1 month ago

When thinking about the functional planes of a network, what is unique about the data plane?

  • It forwards data through a network infrastructure device.
  • It includes protocols used to remotely configure network devices.
  • It manipulates data and outputs it in the JSON format.
  • It includes network traffic being processed by EIGRP or OSPF.
  • Navigation Bar
NTS
NTS
1 month ago

In which SDLC phase is the software product installed into the production environment to decide if it is ready for release?

  • implementation
  • deployment
  • design
  • testing
NTS
NTS
1 month ago

Which convention is used in Python to indicate that methods and variables in a class are private and not to be used outside of the class?

  • by using a single preceding underscore ( _ ) for a method or variable
  • by using the command class private classname() : to start the class definition
  • by using two preceding hyphens ( — ) for a method or variable
  • by declaring a private method or variable in the beginning of the class definition
  • Navigation Bar
NTS
NTS
1 month ago

A packet is received by a server. The packet has a destination port number of 80. What protocol or service is requested?

  • DHCP
  • Telnet over SSH
  • HTTP
  • RESTCONF
  • Navigation Bar
NTS
NTS
1 month ago

A network administrator is developing an application to control a Webex device through xAPI. Which three protocols can be used to access xAPI? (Choose three.)

  • Telnet
  • HTTP
  • XML
  • RS-232
  • FTP
  • JSON
NTS
NTS
1 month ago

Which type of request is used to send a message to a Webex Teams space using Python and the Messages API?

  • PUT
  • POST
  • GET
  • PATCH
NTS
NTS
1 month ago

A network administrator is assigned the 172.16.0.0/24 block of addresses to use in designing an IP addressing scheme. The administrator submits this design for approval: 172.16.0.0/26 172.16.0.64/27 172.16.0.96/26 172.16.0.128/27 What should be the response from the senior network engineer regarding this design? This design is flawed because the 172.16.0.128/27 network number is invalid. This design will work for the branch office. This design is flawed because no design could have two networks that use a /26 mask and are not consecutive blocks of addresses. This design is flawed because the 172.16.0.96/26 network is not a valid block of addresses. This… Read more »

NTS
NTS
1 month ago

Which statement describes a stateful firewall?

  • It can filter packets based on information at Layers 3, 4, 5 and 7 of the OSI reference model.
  • It can determine if the connection is in the initiation, data transfer, or termination phase.
  • It can only filter packets based on limited Layer 3 and 4 information.
  • It can expand the number of IP addresses available and can hide network addressing design.
NTS
NTS
1 month ago

A software development company specializes in being able to use whatever software development method their customer wants to use. One customer company wants to use the Lean method. What is a characteristic of this method?

  • a process that eliminates inefficient ways of working like expecting coders to multitask
  • a software development process that focuses on frequent delivery of working software as well as collaboration between developers and business employees
  • a software development process that has the results of one phase feed into the next phase
  • a software development process that can only go forward
John
John
2 months ago

Does anyone have dumps for 200-901 exam and can share?

If anyone does, please contact me ([email protected]).

Last edited 2 months ago by John
fifille
fifille
2 months ago

Q18 : host
q63 : traceroute

rey go
rey go
2 months ago

for 16, it should be SRE

chandima
chandima
2 months ago

Which type of ISE node provides network access, posturing, guest access, client provisioning, and profiling services?

  • monitoring
  • administration
  • pxGrid
  • policy service
  • Navigation Bar

Answer??

rey go
rey go
2 months ago

round robin – sends requests to the next server on the list
blue-green – sends traffic to a new environment, but keeps the old environment ready in case of issues
canary – diverts a small amount of traffic to a new production environment that is changed

rey go
rey go
2 months ago

for number 43

Component 1 – delete
Component 2 – create
Component 3 – groups
Component 4 – text

rey go
rey go
2 months ago

Are there any updates on the Python code part of the exam? There are also new questions (sadly I haven’t taken the screenshot earlier) regarding TCP/IP and a different set of choices for Q73. The red answer wasn’t present there. Anyways, thanks for this guide. Just missed out on the cut-off score. Will retake in 2 weeks’ time.

kithmini thathsara jasin arachchi
kithmini thathsara jasin arachchi
2 months ago

A student who is interested in network programmability approaches an instructor for advice on learning more about the subject. The student is a kinesthetic learner who learns by doing. Which DevNet resource should the instructor consider telling the student about?

  • DevNet Create
  • DevNet Learning Labs
  • DevNet Zone
  • DevNet Express
kithmini thathsara jasin arachchi
kithmini thathsara jasin arachchi
2 months ago

Which SQL injection defense method should be used only as a last resort?

  • escaping all user-supplied input
  • using a database firewall
  • implementing whitelist input validation
  • using parameterized queries
kithmini thathsara jasin arachchi
kithmini thathsara jasin arachchi
2 months ago

Which scenario exhibits the “social proof” principle of human influence?

  • A user receives a phone call from someone claiming to be from the IT department who needs to verify user credentials.
  • A user visits a web site offering a free gift if the user provides contact information.
  • A user opens an email advertising a free trial on a website that is only available for a few hours.
  • A user completes a survey requesting personal information after seeing co-workers completing the survey.
fifille
fifille
2 months ago

Q63 : traceroute is the good answer
Q16 : SRE is the good answer
Q18 : Host is the good answer

fifille
fifille
2 months ago

another question:
A developer issues a commend python3 -m venv devenv. What is the developer’s goal?
– to install the devnet tools in the python 3 virtual environment called venv
– to enter the python 3 virtual environment named venv using the devnet tools
– to create a python 3 virtual environment named devenv
– to activate the python 3 virtual environment named devenv

correct answer : the 3

said
said
2 months ago

Refer to the exhibit. Match the missing components of the Python script for authenticating to the Cisco Network Services Orchestrator and obtaining a list of network devices using the username of “superadmin” and password of “soverysecure!”. (Not all options are used.)

fifille
fifille
2 months ago

on Q14 I answered json and yang
on Q8 I answered restconf
what do you think admin ?

fifille
fifille
3 months ago

q8: I hesitate between http and RESTCONF

fifille
fifille
3 months ago

excuse for the message 54

What is an architectural constraint that a true Restful WEB API service must adhere to ?
– it uses https to transport data
– it works as a cloud service
– it works stateless
– it must work with a dns server

fifille
fifille
3 months ago

another question

A network administrator develops an application to control a WEBEX device via XAPI. What are the three protocols used to access XAPI
– XML
– JSON
– RS-232
-HTTP
-FTP
– TELNET

fifille
fifille
3 months ago

another question

A network security administrator is currently evaluating products that automate manaes control via APIs when a threat is detected.
Which CISCO product with the desired capability provides a policy-based engine to enable policy-based network access to users and devices,
– Thread Grid
– Identity Services engine
– Umbrella
– Advanced Malware Protection

fifille
fifille
3 months ago

another question :
restful api web service must adhere to?
– it uses https to transport data
– it works as a cloud service
– it works stateless
– it must work with a dns server