Review Questions

You can find the answers in Appendix A.

1. Which of the following is not a WAN protocol or technology?

A. ATM

B. ISDN

C. MPLS

D. RIP

2. What OSI model layers do WAN protocols operate in?

A. Layer 6, Layer 4, Layer 2

B. Transport, Data Link, Network

C. Physical, Data Link, Network

D. Application, Data Link, Network

3. If you have a device in a telecommunications closet owned and installed by the telecommunications company (telco) and it’s your responsibility to cable from this box to the CPE, which term should you use to refer to the device?

A. Customer premises equipment

B. Demarcation point

C. Toll network

D. Central office

4. You have an E1. How many DS0s are used in this point-to-point connection?

A. 24

B. 25

C. 30

D. 32