Florida Gulf Coast University

GEB 3250

Chapter 23 Quiz

1)In ATM, end devices such as routers use all____layers, while switches inside the ATM network use

only the bottom                    layers.

1. two; three
2. three; two
3. one; two
4. none of the above

2. )The only AAL used by the Internet is                                       .

1. AAL1
2. ALL3/4
3. AAL5
4. none of the above

3. )AAL5 is sometimes called the                                  .

1. SAL
2. SEAL
3. SEL
4. none of the above

4. )AAL5 accepts an IP packet of no more than 65,536 bytes and adds                                             in addition to padding.

1. one trailer
2. one header
3. both a and b
4. none of the above

5. )The                         layer provides routing, traffic management, switching, and multiplexing services.

1. AAL
2. ATM
3. both a and b
4. none of the above

6. )When we use IP over ATM, only the                                 cell carries the 8-byte trailer added to the IP datagram.

1. last
2. first
3. both a and b
4. none of the above

7. )When we use IP over ATM, padding can be added only to the                               or the                     .

1. first cell; last cell
2. last two cells; last three cells
3. last cell; last two cells
4. none of the above

8. )To find the physical address of the exiting-point router, ATM uses the services of

                        .

1. ARP
2. IP
3. ATMARP
4. none of the above

9. )The inverse request and inverse reply messages can bind the physical address to an IP address in a(n)

                    situation.

1. SVC
2. PVC
3. both a and b
4. none of the above

10. )The request and reply message can be used to bind a physical address to an IP address in a(n)

                    situation.

1. SVC
2. PVC
3. both a and b
4. none of the above

11. )The inverse request and inverse reply can also be used to build the server                                     

table.

1. mapping
2. routing
3. both a and b
4. none of the above

12. )                            allows an ATM network to be divided into several logical subnets.

1. LAS
2. LAN
3. LIS
4. none of the above

13. )A router connected to an ATM network uses the                                layers.

1. AAL and ATM
2. AAL and physical
3. AAL, ATM, and physical
4. none of the above

14. )A switch inside an ATM network uses the                                layers.

1. AAL and ATM
2. AAL and physical
3. ATM and physical
4. none of the above

15. )Which ATM layer adds an 8-byte trailer to an IP packet?

1. AAL5
2. ATM
3. physical
4. none of the above

16. )Which ATM layer has a 53-byte cell as an end product?

1. physical
2. ATM
3. AAL5
4. none of the above

17. )The VPI of a UNI is                             bits in length.