CCNA / CCENT Certification Practice Exam

Configuration And Troubleshooting

Troubleshooting is a big part of what you and I do as network admins - and it's a big part of your CCENT and CCNA exams, too!

To help you prepare for success on the ICND1 and CCNA exams, here's a 10-question practice exam on information gathering and troubleshooting!

Answers are at the bottom of the page -- and when you're done here, visit our CCNA Practice Exam page for more!

Enjoy the questions!

Chris Bryant

CCIE #12999

"The Computer Certification Bulldog"

chris@thebryantadvantage.com

Question 1:

Which of the following could result in this output of show interface serial 0?

Serial 0 is up, line protocol is down

A. disconnected cable

B. DTE not receiving clockrate from DCE

C. LMI mismatch

D. encapsulation mismatch

E. interface has been shut down

Question 2:

Where does a Cisco router keep its running configuration by default?

A. ROM

B. RAM

C. Flash

D. NVRAM

E. TFTP Server

 

Question 3:

During the boot process, where will the Cisco router first look for a valid IOS image?

A. ROM

B. RAM

C. NVRAM

D. flash

 

 

Question 4:

You've entered Setup Mode. You've decided you'd really like to get out of it. What keystroke allows you to exit Setup Mode and not save any of your configuration created in that mode?

Question 5:

What's the full command to overwrite the current startup configuration with the current running configuration?

Question 6:

When you reload a Cisco router and it begins to reboot, you'll see messages on the screen referring to a "POST". What is that, and why does the router run it?

Question 7:

Go back to Question 1 and identify the issue(s) that would result in this output of show interface serial 1:

Serial 1 is down, line protocol is down

Question 8:

What command will resolve the issue indicated with this output of show interface ethernet0?

Ethernet0 is administratively down, line protocol is down

Question 9:

By default, where will a router look for a valid startup configuration file first as it boots?

A. ROM

B. RAM

C. TFTP Server

D. Flash

E. NVRAM

Question 10:

Referring to the previous question - if the router doesn't find that valid startup config file, describe what it will do as a result.

Answers at the bottom of the page!

 

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