 – Modules 1 – 4: Internet Connection: Getting Online Pre-Test Exam){kind=link}
Module Group 1: Getting Online Pretest Exam Answers
Networking Essentials (Version 2) – Modules 1 – 4: Internet Connection: Getting Online Pre-Test Exam Answers
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1. What is a characteristic of a SOHO network?
- It consists of multiple LANs with backbone infrastructure connections.
- It is a small network that connects a few computers to each other and to the internet.
- It is a collection of interconnected private and public networks.
- It is a large network, such as those used by corporations and schools, with hundreds or thousands of interconnected hosts.
Explanation: The SOHO network allows computers in a home office or a remote office to connect to a corporate network, or access centralized, shared resources.
2. What is the delay in the amount of time for data to travel between two points on a network?
- throughput
- latency
- goodput
- bandwidth
Explanation: Latency is a term used to indicate delay when getting a packet from one point to another. Network connections with small amounts of delay are called low-latency networks, whereas network connections with long delays are called high-latency networks. High latency creates bottlenecks in any network communications.
3. What type of network is defined by two computers that can both send and receive requests for resources?
- enterprise
- client/server
- peer-to-peer
- campus
Explanation: The simplest form of peer-to-peer networking consists of two computers that are directly connected to each other through the use of a wired or wireless connection.
4. What is a role of an intermediary device on a network?
- forms the interface between the human network and the underlying communication network
- determines the path and directs data along the way to its final destination
- runs applications that support collaboration for business
- functions as the primary source of information for end devices
Explanation: Processes running on the intermediary network devices perform functions like regenerating and re-transmitting data signals, maintaining information about what pathways exist through the network and internetwork, directing data along alternate pathways when there is a link failure, and permitting or denying the flow of data, based on security settings.
5. Refer to the exhibit. A student is working on a Packet Tracer lab that includes a home wireless router to be used for both wired and wireless devices. The router and laptop have been placed within the logical workspace. The student adds a laptop device and wants to replace the wired network card with a wireless network card. What is the first step the student should do to install the wireless card?
- Drag the wired network card into the list on the left side.
- Select the WPC300N option from the left and drag that card to the side of the laptop.
- Power off the laptop by clicking on the power button.
- Select the Config tab and then the wireless network card checkbox.
Explanation: Any time you are removing or installing devices into a PC or laptop within Packet Tracer, turn the power off. For the Packet Tracer laptop, use the Physical tab and click on the power button to the immediate right of the power cord.
6. Which type of cable connection would be used in Packet Tracer to connect a FastEthernet port on a PC to a switch port?
- console
- straight-through
- crossover
- fiber
Explanation: A FastEthernet straight-through cable is used to connect the FastEthernet0 port on a PC to a switch port.
7. Refer to the exhibit. Which menu item would be used to bring up a web browser?
- Physical
- Config
- Desktop
- Programming
- Attributes
Explanation: The Desktop menu item is used to access common applications and tools used to configure a device such as the IP address, command prompt, web browser, as well as other apps.
8. Refer to the exhibit. A user is creating a wired and wireless network using Packet Tracer. The user has added a home wireless router, a PC, and a laptop. The user configures the home wireless router. Which icon represents the tool that can be used on the laptop to view the SSID and connect to the wireless router?
- PC Wireless
- Web Browser
- IP Configuration
- Command Prompt
Explanation: The PC Wireless icon represents the tool that can be used to view and connect to a specific wireless SSID that has been configured on a wireless router.
9. Which type of network cable is commonly used in backbone networks and telephone companies?
- fiber-optic cable
- coaxial cable
- twisted-pair cable
- shielded twisted-pair cable
Explanation: Fiber-optic cables can carry very large amounts of data and are used extensively by telephone companies and in backbone networks.
10. What is a purpose of an IP address?
- It identifies the physical location of a data center.
- It identifies a location in memory from which a program runs.
- It identifies a return address for replying to email messages.
- It identifies the source and destination of data packets.
Explanation: Packets that are routed across the Internet contain source and destination IP addresses. These addresses are used to determine how the packets should be routed from source to destination by intermediate devices.
11. A network administrator would like to determine the path a packet takes to reach the destination 192.168.1.1. What is the best command to determine the network path?
- ping 127.0.0.1
- tracert 192.168.1.1
- ping 192.168.1.1
- ipconfig 192.168.1.1
Explanation: The traceroute (tracert) command is used to verify the path to a destination device. The ping command is used to verify Layer 3 connectivity. The ipconfig command is used to display the IP address on a device.
12. A group of newly hired entry-level network engineers are talking about the network cabling they are going to have to install as a team. What is a characteristic of Ethernet straight-through UTP cable?
- It can only use the T568A standard at both ends of the cable.
- It can be used to connect two network hosts.
- It is susceptible to interferences from EMI and RFI.
- It is Cisco proprietary.
Explanation: Ethernet straight-through UTP cable is commonly used to interconnect a host to a switch and a switch to a router. It can use one standard (T568A or T568B) at both ends. EMI and RFI signals can distort and corrupt the data signals being carried by copper media.
13. Which IP configuration parameter provides the IP address of a network device that a computer would use to access the Internet?
- host IP address
- subnet mask
- default gateway
- DNS server
Explanation: The types of IP configuration on a host device include these:
IP address – identifies the host on the network.
Subnet mask – identifies the network on which the host is connected.
Default gateway – identifies the networking device that the host uses to access the Internet or another remote network.
DNS server – identifies the server that is used to translate a domain name into an IP address.
14. A traveling sales representative uses a cell phone to interact with the home office and customers, track samples, make sales calls, log mileage, and upload/download data while at a hotel. Which internet connectivity method would be a preferred method to use on the mobile device due to the low cost?
- cellular
- Wi-Fi
- DSL
- cable
Explanation: Mobile devices typically use either the cellular network or a Wi-Fi network to connect to the internet. The Wi-Fi connection is preferred because it uses less battery power and is free in many places.
15. Which type of technology is used to provide digital data transmissions over cell phone networks?
- Bluetooth
- Wi-Fi
- 4G
- NFC
Explanation: 3G, 4G, and 4G-LTE are technologies that are used to provide enhanced cell phone networks that are capable of fast data transmission.
16. Which wireless technology is used on smart phones to transmit data to another device within only very close proximity?
- Bluetooth
- NFC
- Wi-Fi
- 3G/4G
Explanation: Near Field Communications (NFC) is a wireless technology that enables data to be exchanged by devices that are in very close proximity to each other.
17. What are two sources of electromagnetic interference that can affect data transmissions? (Choose two.)
- infrared remote control
- LED monitor
- cordless phone
- florescent light fixture
- microwave oven
Explanation: Electromagnetic interference or EMI is commonly caused by equipment such as microwave ovens and fluorescent light fixtures.
18. What is a feature of Packet Tracer?
- It allows a functional replacement for real physical network equipment.
- It allows building and modeling network configurations.
- It can be used to trace a packet from source to destination using real corporate data.
- It can be used to examine network data flows for a corporate network that connects to the internet.
Explanation: Packet Tracer is a network simulation tool to build wired and wireless networks as well as modeling device configurations within a test network environment.
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What are two sources of electromagnetic interference that can affect data transmission?
Infrared remote control
Microwave oven
Florescent light fixture
Cordless phone
LED monitor
Thank you for sharing.
What is a feature of Packet Tracer?
It allows a functional replacement for real physical network equipment.
It allows building and modeling network configurations.
It can be used to trace a packet from source to destination using real corporate data.
It can be used to examine network data flows for a corporate network that connects to the internet.
I added. Thank you.