Florida Gulf Coast University

GEB 3250

Chapter 8 Quiz

1)The__protocol is the transmission mechanism used by the TCP/IP suite.

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

2. ) IP is                             datagram protocol.

1. unreliable
2. connectionless
3. both a and b
4. none of the above

3. ) The term                           means that IP provides no error checking or tracking. IP assumes the

unreliability of the underlying layers and does its best to get a transmission through to its destination,

but with no guarantees.

1. reliable delivery
2. connection-oriented delivery
3. best-effort delivery
4. none of the above

4. ) A best-effort delivery service such as IP includes                             .

1. error checking
2. error correction
3. datagram acknowledgment

4. none of the above

5. )An HLEN value of decimal 10 means                            .

1. there are 10 bytes of options
2. there are 40 bytes of options
3. there are 40 bytes in the header
4. none of the above

6. ) A datagram is fragmented into three smaller datagrams. Which of the following is true?

1. The do not fragment bit is set to 1 for all three datagrams.
2. The more fragment bit is set to 0 for all three datagrams.
3. The identification field is the same for all three datagrams.
4. none of the above

7. ) Which field or bit value unambiguously identifies the datagram as a fragment?

1. Donfiltered= 0
2. More Fragment bit = 0
3. Fragment offset = 1000
4. none of the above

8. ) If the fragment offset has a value of 100, it means that                             .

1. the datagram has not been fragmented
2. the datagram is 100 bytes in size
3. the first byte of the datagram is byte 800
4. none of the above

9. ) What is needed to determine the number of the last byte of a fragment?

1. offset number
2. total length
3. b and c
4. none of the above

10. ) The IP header size                         .

1. is 20 to 60 bytes long
2. is 20 bytes long
3. is 60 bytes long
4. none of the above

11. ) Packets in the IP layer are called                                     .

1. segments
2. datagrams
3. frames
4. none of the above

12. ) The total length field defines the total length of the datagram                                        .

1. including the header
2. excluding the header
3. header and option length
4. none of the above

13. ) When a datagram is encapsulated in a frame, the total size of the datagram must be less than the

                   .

1. MUT
2. MAT

3. MTU
4. none of the above

14. ) Which IP option is used if exactly four specific routers are to be visited by the datagram?

1. record route
2. strict source route
3. loose source route
4. none of the above

15. ) For the timestamp option, a flag value of                                means that each visited router adds only the timestamp in the provided field.

1. 0
2. 1
3. 2
4. none of the above

16. ) The IP header field formerly known as the service type field is now called the                                        

field.

1. IETF
2. checksum
3. differentiated services
4. none of the above

17. ) The                       module takes fragments of a message and puts them back in order.

1. processing
2. fragmentation
3. reassembly
4. none of the above

18. )The                      module sends out an IP packet, the next-hop address, and interface information.

1. processing
2. forwarding
3. fragmentation
4. none of the above

19. ) The                       module discards datagrams with a TTL value of zero.

1. processing
2. forwarding
3. fragmentation
4. none of the above

20. ) The output of the                         module is an IP packet destined for an upper-layer protocol.

1. processing
2. forwarding
3. reassembly
4. none of the above

21. )The                      module consults the MTU table to determine the packet size necessary for transmission.

1. processing
2. forwarding
3. fragmentation