Florida Gulf Coast University

GEB 3250

Chapter 19 Quiz

1)_____is the standard mechanism provided by TCP/IP for copying a file from one host to another.

1. TELNET
2. SMTP
3. TFTP
4. none of the above

2. )FTP uses the services of                             .

1. UDP
2. IP
3. TCP
4. none of the above

3. )In FTP, the well-known port                     is used for the control connection and the well-known port

                      for the data connection. A) 21; 22

B) 21; 20

C) 20; 21

D) none of the above

4. )In FTP,                         is the service type used by the IP protocol because this is an interactive connection

between a user (human) and a server.

1. maximize throughput
2. minimize delay
3. minimize error
4. none of the above

5. )For control connection, FTP uses the                                       character set

1. regular ASCII
2. EBCDIC
3. NVT ASCII
4. none of the above

6. )During an FTP session the control connection is opened                                  .

1. exactly once
2. exactly twice
3. as many times as necessary
4. none of the above

7. )During an FTP session the data connection is opened                                  .

1. exactly once
2. exactly twice
3. as many times as necessary
4. none of the above

8. )In FTP, a file can be organized into records, pages, or a stream of bytes. These are types of an

attribute called                        .

1. file types
2. data structures
3. transmission modes
4. none of the above

9. )In FTP, there are three types of                           : stream, block, and compressed.

1. file types
2. data structures
3. transmission modes
4. none of the above

10. )In FTP, ASCII, EBCDIC, and image define an attribute called                                            .

1. file type
2. data structure
3. transmission mode
4. none of the above

11. )In FTP, which category of commands is used to store and retrieve files?

1. file transfer commands
2. access commands
3. file management commands
4. none of the above

12. )In FTP, which category of commands defines the port number for the data connection on the client

site?

1. file transfer commands
2. access commands
3. port defining commands
4. none of the above

13. )In FTP, which category of commands sets the attributes (file type, data structure, and transmission

modes) of a file to be transferred?

1. file transfer commands
2. access commands
3. data formatting commands
4. none of the above

14. )In FTP, which category of commands lets a user switch directories and create or delete directories?

1. file transfer commands
2. access commands
3. file management commands
4. none of the above

15. )In FTP, when we                         , it is copied from the server to the client.

1. retrieve a file
2. retrieve a list
3. a and c
4. none of the above

16. )In FTP, when we

1. retrieve a file
2. store a file
3. retrieve a list
4. none of the above

17. )TFTP uses the services of

1. TCP
2. UDP
3. IP
4. none of the above

.

18. )In TFTP, what type of message is sent in response to an RRQ that fails to establish a connection?

1. WRQ
2. DATA
3. ERROR
4. none of the above

19. )In TFTP, what type of message is sent to establish a connection to retrieve a file?

1. RRQ
2. WRQ
3. DATA
4. none of the above

20. )In TFTP, which type of message is always a set number of bytes?

1. RRQ

2. WRQ
3. ACK
4. none of the above

21. )In TFTP, A DATA block is sent in response to a                                     message.

1. RRQ
2. ACK
3. a or b
4. none of the above

22. )In TFTP, a connection is terminated with a                                   block.

1. DATA
2. ACK
3. ERROR
4. none of the above

23. )An unauthorized user tries to send a file to a server using TFTP. What should be the response of the

server?

1. ACK
2. ERROR
3. DATA
4. none of the above

24. )In TFTP, the block number on a DATA message is 22. This always means                                          .

1. there were 21 previous blocks
2. there were 20 previous blocks
3. this is the last block
4. none of the above

25. )Which TFTP message contains a block number field?

1. DATA
2. ACK
3. a and b
4. none of the above

26. )In TFTP, connection termination is signaled by a DATA message with                                          bytes.

A) any positive number of

B) 512

3. 0 to 511
4. all of the above

27. )The flow-control mechanism in TFTP                                .

1. requires an ACK for every DATA message
2. is called sliding window
3. is nonexistent
4. none of the above

28. )In TFTP, if a message is                             , it is resent.

1. damaged
2. lost
3. a and b
4. none of the above

29. )In TFTP, if a duplicate DATA message is received,                                    .