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IT Essentials (ITE v6.0 + v7.0) Chapter 6 Test Online
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1. Question1 pointsUsers in a recently installed wireless network are complaining of slow data transfer and frequent loss of connectivity. The technician checks that the wireless security is correctly implemented, and there is no evidence of unauthorized users on the network. Which two problems might the technician suspect? (Choose two.)CorrectIncorrect
HintNormally, the closer a wireless NIC is to an access point, the faster the connectivity. This problem does not require the network password to be reissued. The combination of the low bandwidth and the intermittent connectivity is pointing towards a weak signal or interference from outside sources.
2. Question1 pointsA wired network is undergoing several changes that could leave it vulnerable to connection by unauthorized devices while the work is in progress. Which two temporary measures would enable the authorized devices to continue to have network access but prevent unauthorized devices from connecting? (Choose two.)CorrectIncorrect
HintDisabling DHCP and assigning static IP addresses only to authorized devices will prevent unauthorized devices from automatically obtaining IP address information. Without the correct IP address information, the unauthorized devices will not be able to communicate over the network. Disabling DNS will result in all connected devices no longer automatically being able to communicate with network resources by name (IP addresses would have to be used.), but will not prevent unauthorized devices from connecting and enabling potentially malicious access from occurring. Subnetting the network will change the range of IP addresses used but not prevent unauthorized network access. Disabling SSID broadcasts is only applicable to wireless networks, not wired networks.
3. Question1 pointsWhat two default wireless router settings can affect network security? (Choose two.)CorrectIncorrect
HintDefault settings on wireless routers often include broadcasting the SSID and using a well-known administrative password. Both of these pose a security risk to wireless networks. WEP encryption and MAC address filtering are not set by default. The automatic selection of the wireless channel poses no security risks.
4. Question1 pointsA network technician is checking a computer to see if the DHCP client is working correctly. The technician issues the ipconfig /all command. Which two parameters should the technician review? (Choose two.)CorrectIncorrect
HintA DHCP server can provide several parameters such as IP address, subnet mask, default gateway, and other optional parameters. The host name, media state, and description are present even if a DHCP server is not found.
5. Question1 pointsA technician is troubleshooting a problem where the user claims access to the Internet is not working, but there was access to the Internet the day before. Upon investigation, the technician determines that the user cannot access the network printer in the office either. The network printer is on the same network as the computer. The computer has 169.254.100.88 assigned as an IP address. What is the most likely problem?CorrectIncorrect
HintIn a network employing dynamic IP addressing, if a computer cannot communicate with the DHCP server to obtain an IP address, the Windows operating system automatically assigns a link-local IP, which is in the range of 169.254.0.0 to 169.254.255.255. In this case, the computer can only communicate with computers connected to the same network within this IP address range.
6. Question1 pointsA user can print to a printer that is on the same network, but the traffic of the user cannot reach the Internet. What is a possible cause of the problem?CorrectIncorrect
HintThe default gateway IP address is used to reach other networks, including the Internet.
7. Question1 pointsPort triggering has been configured on a wireless router. Port 25 has been defined as the trigger port and port 113 as an open port. What effect does this have on network traffic?CorrectIncorrect
HintPort triggering is used to allow inbound traffic through the firewall based on outbound traffic. The trigger occurs when an application makes use of a specific port on the internal network. An external port on the firewall is then opened. This allows for temporary passage of traffic through inbound ports to a specific device.
8. Question1 pointsA PC is not able to connect to a wired network. Pinging the loopback address is successful, but the gateway cannot be reached. On the network switch all the interface lights are on, except for the interface connected to the PC. The LED on the network card is off. What is the most likely cause of this problem?CorrectIncorrect
HintThe network card is working if the loopback address can be pinged. The LED on the network card being off points towards a faulty cable or a bad connection.
9. Question1 pointsThe current IP configuration of a small company is done manually and is time-consuming. Because of increased network growth, a technician needs a simpler way for IP configuration of workstations. Which service would simplify the workstation IP configuration task?CorrectIncorrect
HintIn networks with more than a few hosts, DHCP simplifies the addressing process. A DHCP server automatically assigns host IP addresses.
10. Question1 pointsA technician troubleshooting a network problem has used CLI commands to determine that a computer has not been allocated a correct IP address from the DHCP server. Which command can the technician use to solve this problem?CorrectIncorrect
HintThe command ipconfig/renew will cause the computer to request a new IP address from the DHCP server. The command ipconfig/release will remove the current IP address but will not request a new address. The commands ping and tracert are used to test network connectivity.
11. Question1 pointsWhich network protocol is used to automatically assign an IP address to a computer on a network?CorrectIncorrect
HintA Dynamic Host Configuration Protocol (DHCP) server automatically assigns IP addresses, simplifying the addressing process. FTP manages file transfers. SMTP sends email. ICMP is a messaging protocol that is used in troubleshooting. APIPA is Automatic Private IP Addressing, a Windows operating feature that allows DHCP clients to obtain addresses even when a DHCP server is not present.
12. Question1 pointsWhat security technique could provide secure access to a server located in a small office without the expense of implementing a DMZ or purchasing a hardware firewall?CorrectIncorrect
HintPort forwarding provides a rule-based method to direct traffic between devices on separate networks. This method provides access to devices across the Internet in a less expensive way than using a DMZ.
13. Question1 pointsA group of users is unable to connect to the network. When testing several of the PCs and issuing the command ipconfig, the technician notices that all of them have an IP address in the 169.254.x.x range. What is the most likely cause of this problem?CorrectIncorrect
HintIf the PCs are not able to connect to a DHCP, they will be allocated an IP address within the range 169.254.0.0 – 169.254.255.255.
14. Question1 pointsWhat is the correct compressed format of the IPv6 address 2001:0db8:eeff:000a:0000:0000:0000:0001?CorrectIncorrect
HintThere are two rules for IPv6 address compression. Rule 1: leading zeros in any hextet can be removed. Rule 2: contiguous hextets of all zeros can be compressed to a double colon. Rule two can only be applied once.
15. Question1 pointsWhat is the proper CIDR prefix notation for a subnet mask of 255.0.0.0?CorrectIncorrect
HintThe proper CIDR notation for a subnet mask of 255.0.0.0 is /8. This is because the /8 indicates that the first eight bits of the subnet mask are set to binary 1.
16. Question1 pointsA technician is configuring the channel on a wireless router to either 1, 6, or 11. What is the purpose of adjusting the channel?CorrectIncorrect
HintChannels 1, 6, and 11 are selected because they are 5 channels apart. thus minimizing the interference with adjacent channels. A channel frequency can interfere with channels on either side of the main frequency. All wireless devices need to be used on nonadjacent channels.
17. Question1 pointsWhich network server is malfunctioning if a user can ping the IP address of a web server but cannot ping the web server host name?CorrectIncorrect
HintIf pings are successful to an IP address but not to a host name, then the problem may be that a DNS server cannot be accessed.
18. Question1 pointsMultiple users report that the workstations are assigned a 169.254.x.x IP address. The users are able to communicate only between each other. What is a possible solution?CorrectIncorrect
HintWhen a network device automatically obtains the IP address 169.254.x.x, it is unable to receive an IP address from a DHCP server. The DHCP server should be restarted to ensure that it is operational.
19. Question1 pointsAn administrator deploys wireless access points across the office to provide wireless network connectivity to users. Each workstation receives an IP address via DHCP. After a file server with a static IP is connected to the wired network, the administrator receives an IP address conflict message. What is a possible solution?CorrectIncorrect
HintIf an IP address conflict message is displayed, then a single IP address is being used more than once on the same network. To solve this issue, the administrator needs to give a different static IP address to the server on the network.
20. Question1 pointsA workstation has been moved from the first floor to the fifth floor within an organization. The user is now reporting that the workstation cannot connect to the network. A technician suspects that the workstation could not obtain an IP address from a DHCP server. What is a possible cause of the problem?CorrectIncorrect
HintIn most cases in an organization, when a computer is moved from one department to another, it needs a new IP address to connect to the network. When a computer is configured with a static IP address, it will not initiate the process of obtaining a new IP address from DHCP servers.
21. Question1 pointsA device has been assigned the IPv6 address of 2001:0db8:cafe:4500:1000:00d8:0058:00ab/64. Which is the host identifier of the device?CorrectIncorrect
HintThe address has a prefix length of /64. Thus the first 64 bits represent the network portion, whereas the last 64 bits represent the host portion of the IPv6 address.
22. Question1 pointsWhich IPv6 address represents the most compressed form of the IPv6 address 2001:0db8:cafe:0000:0835:0000:0000:0aa0/80?CorrectIncorrect
HintThere are two rules that exist to help in the reduction of the number of digits within an IPv6 address: Rule 1 is used to remove any leading 0s. After applying rule 1 to 2001:0db8:cafe:0000:0835:0000:0000:0aa0/80, we calculate the outcome as 2001:db8:cafe:0:835:0:0:aa0/80. Rule 2 is used to replace any group of consecutive zeros once throughout the IPv6 address. After applying rule 2 to 2001:db8:cafe:0:835:0:0:aa0/80, we calculate the outcome as 2001:db8:cafe:0:835::aa0/80.
23. Question1 pointsAfter having talked to the customer, a network technician suspects that an invalid IP address is the most likely cause of a network issue. Which step of the troubleshooting process does this represent?CorrectIncorrect
HintBefore a solution can be proposed or tested, the technician has to first talk to the customer to identify the problem, and establish a theory of probable cause.
24. Question1 pointsWhich filtering method uses the physical address to specify exactly which device is allowed or blocked from sending data on a network?CorrectIncorrect
HintMAC address filtering specifies exactly which device MAC addresses are allowed to or blocked from sending data on your network.
25. Question1 pointsHow many bits are used to represent an IPv6 address?CorrectIncorrect
26. Question1 pointsHow many bits are used to represent the host address of a computer with the IP address of 192.168.1.25 and a subnet mask of 255.255.255.0?CorrectIncorrect
27. Question1 pointsHow many bits are used to represent the host address of a computer with the IP address of 192.168.1.25 and a subnet mask of 255.255.255.0?CorrectIncorrect
28. Question1 pointsHow many bits are used to represent the host address of a computer with the IP address of 192.168.1.25 and a subnet mask of 255.255.255.0?CorrectIncorrect
29. Question1 pointsHow many bits are used to represent the network address of a host with an IP address of 192.168.150.16 and a subnet mask of 255.255.0.0?CorrectIncorrect
30. Question1 pointsHow many bits are used to represent the network address of a host with an IP address of 192.168.150.16 and a subnet mask of 255.255.0.0?CorrectIncorrect
31. Question1 pointsHow many bits are used to represent the OUI part of the MAC address of a NIC card?CorrectIncorrect
32. Question1 pointsHow many bits are used to represent the OUI part of the MAC address of a NIC card?CorrectIncorrect
33. Question1 pointsHow many bits are used to represent a MAC address?CorrectIncorrect
34. Question1 pointsHow many bits are used to represent a MAC address?CorrectIncorrect