Infrastructure Maintenance

Question 1

What does the “show ssh” command do?

Answer 1

It will display the status of current ssh connections to the device.

Question 2

What does the “show ip ssh” command do?

Answer 2

It will display the version and configuration data on a Cisco router

Question 3

True of False; The commands “show cdp neighbor” and “show interface” provide Layer 3 information?

Answer 3

False. They provide Layer 2 information.

Question 4

True of False: Ping is used to verify and troubleshoot layer 3 issues

Answer 4

True.

Question 5

What is the Default Sequence in which a router searches for IOS Image upon power on?

Answer 5

Flash, TFTP, ROM

Question 6

Which command will let you see the current operating mode for a switch port?

Answer 6

show interfaces fastethernet0/1 switchport

Question 7

Which two Security Features can be configured to prevent unauthorised access into a network through a network device?

Answer 7

Authentication and Traffic Filtering.

Question 8

List the Steps to recover access to a Cisco device after the loss of the password?

Answer 8

Reboot the router
Enter Router Diagnostic mode - ROMMON
Boot into the ios with out the saved configuration
Copy startup-configuration to running-configuration
Configure the Enable Secret password
Save the Current configuration and reboot.

Question 9

What situation could cause a switch to enter initial configuration mode upon booting?

Answer 9

Corrupt or missing configuration file in the NVRAM memory.

Question 10

What are 2 limitations of the Command “service password-encryption”?

Answer 10

It uses the Vigenere cipher algorithm. which does not protect the configuration file against details analysis by attackers.

Question 11

What command should you use to suspend a telnet session and return to the device you connected from

Answer 11

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