Module 20: Troubleshoot Common Network Problems

What is the purpose of troubleshooting in networking?

• To gather information about network devices

• To test network connectivity

• To identify, locate, and correct problems

• To configure network devices

What should be included in the documentation during the troubleshooting process?

• Steps taken to determine the cause of the problem

• All of the above

• Steps used to correct the problem

• A detailed description of the problem

Which method of troubleshooting starts with the physical layer and moves up through the layers of the OSI model?

• None of the above

• Bottom-Up

• Top-Down

• Divide and Conquer

What are some common Layer 1 problems in networking?

• All of the above

• Device receiving power?

• Loose network cable connection

• Incorrect cable type

Which command is used to display IP configuration information?

• netstat

• ipconfig

• tracert

• ping

What does the ping command test?

• Network connections

• All of the above

• DNS resolution

• Network device reachability

What command is used to provide connectivity information about the path a packet takes to reach the destination?

• traceroute

• nslookup

• ping

• netstat

What does the netstat command verify?

• Active TCP connections

• Protocol in use

• Local and foreign address and port numbers

• All of the above

What is the purpose of the nslookup command?

• To troubleshoot name resolution issues

• To manually query name servers for name resolution

• All of the above

• To verify the current status of name servers

What is the recommended approach to troubleshoot simpler problems or software-related issues?

• None of the above

• Bottom-Up

• Divide and Conquer

• Top-Down