Networking Basics

26. What does a VLAN do?

A. Acts as the fastest port to all servers.
B. Provides multiple collision domains on one switch port.
C. Breaks up broadcast domains in a layer 2 switch internetwork.
D. Provides multiple broadcast domains within a single collision domain.

Correct Answer: C. Breaks up broadcast domains in a layer 2 switch internetwork.

27. What is the main reason the OSI model was created?

A. To create a layered model larger than the DoD model.
B. So application developers can change only one layer’s protocols at a time.
C. So different networks could communicate.
D. So Cisco could use the model.

Correct Answer: C. So different networks could communicate.

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

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

Correct Answer: D. 12

29. What command will display the line, protocol, DLCI, and LMI information of an interface?

A. sh pvc
B. show interface
C. show frame-relay pvc
D. show run

Correct Answer: B. show interface

30. Which protocol does Ping use?

A. TCP
B. ARP
C. ICMP
D. BootP

Correct Answer: C. ICMP

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