Explore topic-wise InterviewSolutions in .

This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

1.

What command do you type to save the configuration stored in RAM to NVRAM?

Answer» To copy the running-config to NVRAM so that it will be used if the router is restarted, use the copy running-config startup-config command (copy run start for short).
Discussion
2.

You type and receive an error. Why did you receive this message?

Answer» The % ambiguous command error means that there is more then one possible command that starts with ru. Use a question mark to find the correct command.
Discussion
3.

If you wanted administrators to see a message when logging into the router, which command would you use?

Answer» The typical banner is a message of the day (MOTD) and is set by using the global configuration mode command banner motd.
Discussion
4.

How many simultaneous Telnet sessions does a Cisco router support by default?

Answer» Cisco routers, if they do not have the Enterprise edition of the IOS, will default to 5 simultaneous Telnet sessions.
Discussion
5.

You set the console password, but when you display the configuration, the password doesn't show up; it looks like this: What cause the password to be stored like this?

Answer» The command service password-encryption, from global configuration mode, will encrypt the passwords.
Discussion
6.

Which command will show you whether a DTE or a DCE cable is plugged into serial 0?

Answer» The show controllers serial 0 command will show you whether either a DTE or DCE cable is connected to the interface. If it is a DCE connection, you need to add clocking with the clock rate command.
Discussion
7.

You want to totally reinitialize the router and replace the current running-config with the current startup-config. What command will you use?

Answer» To completely replace the running-config with the startup-config, you must reload the router. Note : You may have picked option C, which isn't a bad answer. Remember, though, it doesn't replace the configuration, it appends it.
Discussion
8.

If you delete the contents of NVRAM and reboot the router, what mode will you be in?

Answer» If you delete the startup-config and reload the router, the router will automatically enter setup mode. You can also type setup from privileged mode at any time.
Discussion
9.

You need to find the broadcast address used on a LAN on your router. What command will you type into the router from user mode to find the broadcast address?

Answer» The command show ip protocols will actually show you the broadcast address for each interface - too bad it isn't a possible answer. Your best answer is show interfaces, which will provide the IP address and mask for each interface.
Discussion
10.

Which command will delete the contents of NVRAM on a router?

Answer» The erase startup-config command erases the contents of NVRAM and will put you in setup mode if the router is restarted.
Discussion
11.

What keystroke will terminate setup mode?

Answer» You can exit setup mode at any time by using the keystroke Ctrl+C.
Discussion