CCNA Practice Quiz Cisco IOS Commands

1. Which of the following command is executed in CLI mode in the Cisco router to enter into privileged mode from User exec mode?

1. Enable
2. Disable
3. Configure terminal
4. Privilege

Answer

2. Which of the following command will disable CDP on an interface?

1. Router#no cdp enable
2. Router(config)#no cdp enable
3. Router(config-if)#no cdp enable
4. None of the above

Answer

3. The current IP addressing and layer 1, layer 2 status of an interface in a router can be seen by using the following commands.

1.  show controllers
2.  show versions
3.  show ip interface
4.  show protocols
5.  show interfaces

1. I and II
2. I, II, and III
3. III, IV, and V
4. None of the above

Answer

4. Which of the following command is run to show NVRAM content?

1. show run
2. show start
3. show mem
4. show flash

Answer

1. Router(config-if)#clockrate 2mbps
2. Router(config-if)#clockrate 2
3. Router(config-if)#clockrate 2000000
4. Router(config-ip)#bandwidth 2mbps

Answer

What command will you issue to configure the IP address of serial ports S0/0/0 of Router 1?

1. Router1(config-if)#ip address 10.10.10.10/24.
2. Router1(config-if)#ip address 10.10.10.10 255.255.255.0
3. Router1(config-if)# ip address 10.10.10.20/24
4. Router1(comfig-if)#ip address 10.10.10.20 255.255.255.0

Answer

1. copy flash tftp
2. backup image tftp
3. copy tftp flash
4. copy flash server

Answer

8. Which of the following  CLI command will display the name of all the IOS image files available in flash memory?

1. #show flash
2. #show protocols
3. #show IOS 
4. #show image

Answer

1. PPP
2. ISL
3. 802.11
4. All of the above.

Answer

1. VCI
2. VTP
3. VTY
4. VPI

Answer

11. You are configuring a Cisco router in CLI mode and you are currently in privileged exec mode. What command you have to issue in order to go back to User exec mode?

1. Router#enable
2. Router#disable
3.  Router#exit
4. Router#config t

Answer

12. Which of the following statements are true in connection with the User Exec mode? (Choose any two)

1. The symbol “>” indicates that you are currently in user exec mode.
2. You can directly enter into the global configuration mode by using “configure terminal” in user exec mode
3. You can send a Ping request to the remote IP host from user exec mode
4. The router passwords are configured in this mode.

Answer

Answer

Answer: 

1. log out of the router
2. Exists back to the privileged mode
3. Exists back to User exec mode
4. exit one step back from the current mode

Answer

15. Refer to the exhibit.

When you enter the invalid command that IOS could not recognize, the router gets hang for a minute in order to search the command in the domain server. This can be an embarrassing moment for the network administrator. The situation can be avoided by issuing one of the following commands.

1. no IP look domain
2. no IP domain search
3. no IP lookup domain
4. no IP domain-lookup

Answer

16. Which of the following command will display the broadcast address of interfaces of the router connected with LAN.

1. show protocols
2. show interfaces
3. show run
4. show broadcast address

Answer

1. NVRAM
2. Flash 
3. TFTP server
4. DHCP server

Answer

18. Refer to the following exhibit. You want to upload the new IOS image in your router without losing the old IOS image. What is the maximum size available in the flash memory as stated in the exhibit?

1. 221.896 bytes
2. 221.896 Kbytes
3. 255.744 Mbytes
4. 221.896 Mbytes

Answer

19. Which of the following commands will you use to enable SSH version 2 for login?

1. Router(config-line)#ssh version 2
2. Router(config-line)#version 2
3. Router(config-ssh)#version 2
4. Router(config)#ip ssh version 2

Answer

20. You are a network administrator. You have set enable password as “CCNA@1234” in your router. However, when you want to go into the privileged mode using enable password, the router displays the error message “% Bad secrets”. Identify the problems regarding passwords. (Choose any two).

1. You are entering the wrong enable password
2. The different enable secret password is set on the router
3. Enable password contains special characters
4. The enable password length is greater than 8 characters.

Answer