Networking Basics

21. In a network with dozens of switches, how many root bridges would you have?

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

Correct Answer: A. 1
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22. What PPP protocol provides dynamic addressing, authentication, and multilink?

A. NCP
B. HDLC
C. LCP
D. X.25

Correct Answer: C. LCP
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23. What is a stub network?

A. A network with more than one exit point.
B. A network with more than one exit and entry point.
C. A network with only one entry and no exit point.
D. A network that has only one entry and exit point.

Correct Answer: D. A network that has only one entry and exit point.
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24. If your router is facilitating a CSU/DSU, which of the following commands do you need to use to provide the router with a 64000bps serial link?

A. RouterA(config)#bandwidth 64
B. RouterA(config-if)#bandwidth 64000
C. RouterA(config-if)#clock rate 64
D. RouterA(config-if)#clock rate 64000

Correct Answer: D. RouterA(config-if)#clock rate 64000
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25. Which one of the following is true regarding VLANs?

A. Two VLANs are configured by default on all Cisco switches.
B. VLANs only work if you have a complete Cisco switched internetwork. No off-brand switches are allowed.
C. You should not have more than 10 switches in the same VTP domain.
D. VTP is used to send VLAN information to switches in a configured VTP domain.

Correct Answer: D. VTP is used to send VLAN information to switches in a configured VTP domain.
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