Networking - Networking Basics

Exercise :: Networking Basics - Networking Basics

  • Networking Basics - Networking Basics
16. 

How often are BPDUs sent from a layer 2 device?

A. Never
B. Every 2 seconds
C. Every 10 minutes
D. Every 30 seconds

Answer: Option B

Explanation:

Every 2 seconds, BPDUs are sent out from all active bridge ports by default.

17. 

How many broadcast domains are created when you segment a network with a 12-port switch?

A. 1
B. 2
C. 5
D. 12

Answer: Option A

Explanation:

By default, switches break up collision domains but are one large broadcast domain.

18. 

What does the command routerA(config)#line cons 0 allow you to perform next?

A. Set the Telnet password.
B. Shut down the router.
C. Set your console password.
D. Disable console connections.

Answer: Option C

Explanation:

The command line console 0 places you at a prompt where you can then set your console user-mode password.

19. 

Which router command allows you to view the entire contents of all access lists?

A. show all access-lists
B. show access-lists
C. show ip interface
D. show interface

Answer: Option B

Explanation:

To see the contents of all access lists, use the show access-lists command.

20. 

Which class of IP address has the most host addresses available by default?

A. A
B. B
C. C
D. A and B

Answer: Option A

Explanation:

Class A addressing provides 24 bits for host addressing.