Lesson 23: Troubleshoot Network Issues Flashcards

• Identify and resolve network configuration issues. • Verify network configuration with Network preferences. • Use Network Utility to aid in troubleshooting.

1
Q

What are three common issues that can interrupt network services on a Mac computer?

A

These three common issues can interrupt network services on a Mac:

  1. Local issues: Usually related to either improperly configured network settings or disconnected network connections.
  2. Network issues: Use network diagnostics to help you investigate possible causes.
  3. Service issues: Related to the network device or service you are trying to access.
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2
Q

How can you identify the MAC addresses for all the Mac computer’s network interfaces?

A

You can identify all the MAC addresses for the Mac computer’s network interfaces from the Info pane in Network Utility.

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3
Q

What is the term for the current data rate of a Wi-Fi connection?

Where can you access this information about a specific Wi-Fi connection?

A

You can view the current data rate, or Tx Rate, of a selected Wi-Fi connection on the Wi-Fi status menu.

The Wi-Fi status menu gives you access to important information about your connections and also allows you to access troubleshooting tools like Wireless Diagnostics.

You can open the Wi-Fi status menu by pressing and holding the Option key and clicking the Wi-Fi icon in your menu bar.

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4
Q

How can you verify basic connectivity to another network host?

A

You can use the Ping tab in Network Utility to test basic connectivity to another network host by sending a ping packet and then waiting for its return.

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5
Q

How can you verify that DNS host name resolution is working?

A

You can use the Lookup tab in Network Utility to test name resolution against the currently configured DNS server.

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6
Q

How can you verify that the system can establish a connection to a remote network host?

A

You can use the Traceroute tab in Network Utility to verify the connection hops between your Mac and a remote host.

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