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Review Questions
The following questions are designed to test your understanding of this chapter’s material. For more
information on how to get additional questions, please see
www.lammle.com/ccna
.
You can find the answers to these questions in Appendix B, “Answers to Review Questions.”
1. What does the command
confreg 0x2142
provide?
1. It is used to restart the router.
2. It is used to bypass the configuration in NVRAM.
3. It is used to enter ROM monitor mode.
4. It is used to view the lost password.
2. Which command will copy the IOS to a backup host on your network?
1. transfer IOS to 172.16.10.1
2. copy run start
3. copy tftp flash
4. copy start tftp
5. copy flash tftp
3. What command is used to permanently install a license on an ISR2 router?
1. install license
2. license install
3. boot system license
4. boot license module
4. You type the following into the router and reload. What will the router do?
Router(config)#
boot system flash c2800nm-advsecurityk9-mz.151-4.M6.bin
Router(config)#
config-register 0x2101
Router(config)#
do sh ver
[output cut]
Configuration register is 0x2102 (will be 0x2101 at next reload)
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Configuration register is 0x2102 (will be 0x2101 at next reload)
1. The router will expand and run the
c2800nm-advsecurityk9-mz.151-4.M6.bin
IOS from
flash memory.
2. The router will go into setup mode.
3. The router will load the mini-IOS from ROM.
4. The router will enter ROM monitor mode.
5. A network administrator wants to upgrade the IOS of a router without removing the image currently
installed. What command will display the amount of memory consumed by the current IOS image and
indicate whether there is enough room available to hold both the current and new images?
1. show version
2. show flash
3. show memory
4. show buffers
5. show running-config
6. The corporate office sends you a new router to connect, but upon connecting the console cable, you see
that there is already a configuration on the router. What should be done before a new configuration is
entered in the router?
1. RAM should be erased and the router restarted.
2. Flash should be erased and the router restarted.
3. NVRAM should be erased and the router restarted.
4. The new configuration should be entered and saved.
7. Which command loads a new version of the Cisco IOS into a router?
1. copy flash f tp
2. copy nvram flash
3. copy flash tftp
4. copy tftp flash
8. Which command will show you the IOS version running on your router?
1. sh IOS
2. sh flash
3. sh version
4. sh protocols
9. What should the configuration register value be after you successfully complete the password recovery
procedure and return the router to normal operation?
1. 0x2100
2. 0x2101
3. 0x2102
4. 0x2142
10. You save the configuration on a router with the
copy running-config startup-config
command
and reboot the router. The router, however, comes up with a blank configuration. What can the problem
be?
1. You didn’t boot the router with the correct command.
2. NVRAM is corrupted.
3. The configuration register setting is incorrect.
4. The newly upgraded IOS is not compatible with the hardware of the router.
5. The configuration you saved is not compatible with the hardware.
11. Which command will install a Right-To-Use license so you can use an evaluation version of a feature?
1. install Right-To-Use license feature
feature
2. install temporary feature
feature
3. license install feature
4. license boot module
12. Which command determines the licenses that are active on your system along with several status variables?
1. show license
2. show license feature
3. show license udi
4. show version
13. Which command allows you to view the technology package licenses and feature licenses that are
supported on your router along with several status variables?
1. show license
2. show license feature
3. show license udi
4. show version
14. Which command displays the unique device identifier that comprises the product ID and serial number of
the router?
1. show license
2. show license feature
3. show license udi
4. show version
15. Which command displays various pieces of information about the current IOS version, including the
licensing details at the end of the command’s output?
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1. show license
2. show license feature
3. show license udi
4. show version
16. Which command backs up your license to flash memory?
1. copy tftp flash
2. save license flash
3. license save flash
4. copy license flash
17. Which command displays the configuration register setting?
1. show ip route
2. show boot version
3. show version
4. show flash
18. What two steps are needed to remove a license from a router? (Choose two.)
1. Use the
erase flash:license
command.
2. Reload the system.
3. Use the
license boot
command with the
disable
variable at the end of the command line.
4. Clear the license with the
license clear
command.
19. You have your laptop directly connected into a router’s Ethernet port. Which of the following are among the
requirements for the
copy flash tftp
command to be successful? (Choose three.)
1. TFTP server software must be running on the router.
2. TFTP server software must be running on your laptop.
3. The Ethernet cable connecting the laptop directly into the router’s Ethernet port must be a
straight-through cable.
4. The laptop must be on the same subnet as the router’s Ethernet interface.
5. The
copy flash tftp
command must be supplied the IP address of the laptop.
6. There must be enough room in the flash memory of the router to accommodate the file to be
copied.
20. The configuration register setting of 0x2102 provides what function to a router?
1. Tells the router to boot into ROM monitor mode
2. Provides password recovery
3. Tells the router to look in NVRAM for the boot sequence
4. Boots the IOS from a TFTP server
5. Boots an IOS image stored in ROM
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