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Wired Host Networking Configuration

  • Sample Chapter is provided courtesy of Cisco Press.
  • Date: Apr 17, 2024.

This chapter covers the following exam topics:

  • 3. Endpoints and Media Types

    • 3.4. Demonstrate how to set up and check network connectivity on Windows, Linux, Mac, Android, and Apple mobile OS.

      Networking utilities on Windows, Linux, Android, and Apple operating systems; how to run troubleshooting commands; wireless client settings (SSID, authentication, WPA mode)

  • 5. Diagnosing Problems

    • 5.3. Run basic diagnostic commands and interpret the results.

      ping, ipconfig/ifconfig/ip, tracert/traceroute, nslookup; recognize how firewalls can influence the result

The previous three chapters discussed how computer networks use addresses and control planes to carry traffic from one host to another. This chapter is a more practical examination of configuring individual hosts to connect to and use an IP network.

We work through

  • Verifying the physical interface address.

  • Configuring and verifying the IP address.

This chapter also touches on the host routing table. Each section considers a single operating system.

“Do I Know This Already?” Quiz

Take the quiz (either here or use the PTP software) if you want to use the score to help you decide how much time to spend on this chapter. Appendix A, “Answers to the ‘Do I Know This Already?’ Quizzes,” found at the end of the book, includes both the answers and explanations. You can also find answers in the PTP testing software.

Table 4-1 “Do I Know This Already?” Foundation Topics Section-to-Question Mapping

Section

Questions

Windows

1, 2, 3

macOS

4

Linux

5

Verifying Connectivity

6, 7, 8, 9

Finding Your Public IP Address

10

1. What tools can you use to view and manage the IP addresses of interfaces on Windows 11?

  1. System Information app, Control Panel, command-line utilities

  2. Control Panel, System Information app

  3. Settings app, Control Panel, command-line utilities

  4. Command-line utilities, Control Panel

2. What Windows 11 application can you use to view the amount of information transmitted and received on an interface? (Choose two.)

  1. Control Panel network configuration dialog

  2. System Information app interface information

  3. Settings app Network & Interface

  4. Control Panel Interface Status dialog

3. What is one primary difference between command-line interfaces (CLIs) for configuration and monitoring rather than graphical user interfaces (GUIs) when configuring and monitoring network interfaces?

  1. The CLI always provides more information than the GUI.

  2. The GUI always uses fewer system resources than the CLI.

  3. The CLI is easier to use with scripts and automation tools.

  4. The GUI tends to respond more quickly to user commands than a CLI.

4. What tools can you use to view and manage the IP addresses of interfaces on Apple’s OS/X?

  1. Control Panel, Finder, command line

  2. Settings application, System Information app, command line

  3. Control Panel, System Information app, command line

  4. Settings application, Finder, command line

5. What are the most common commands used for discovering the IP address in Linux?

  1. Powershell and ifconfig

  2. ipconfig and ip

  3. ifconfig and ip

  4. Powershell and ip

6. What kinds of packets do ping applications transmit?

  1. User Datagram Protocol (UDP)

  2. Transmission Control Protocol (TCP)

  3. QUIC

  4. Internet Control Message Protocol (ICMP)

7. What kinds of packets do traceroute applications normally transmit? (Choose two.)

  1. User Datagram Protocol (UDP)

  2. Transmission Control Protocol (TCP)

  3. QUIC

  4. Internet Control Message Protocol (ICMP)

8. What characteristic of an IP packet does traceroute use to find each hop in a path?

  1. Destination address

  2. Source address

  3. Packet size

  4. Time-to-live

9. What does an asterisk (*) in traceroute mean? (Choose two.)

  1. The router or host at this hop in the network does not send ICMP responses.

  2. The packet passed through a tunnel.

  3. The path ends at this point.

  4. The network has blocked the ICMP response packet.

10. Why might your public and private IP addresses be different?

  1. The host operating system displays your private IP addresses to preserve the user’s privacy.

  2. The private IP address is only known to the user, while everyone knows the public IP address.

  3. If the network operator runs out of address space, they will sometimes use private IP addresses they own for hosts.

  4. Your local network assigns your host a private IP address that is translated to a public IP address for use on the global Internet.

2. Windows | Next Section

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