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TCP/IP Protocol Suite, 4/e
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Chapter 21 - Multiple Choice Quiz



1

_______ is the standard mechanism provided by TCP/IP for copying a file from one host to another.
A)TELNET
B)SMTP
C)TFTP
D)none of the choices are correct
2

FTP uses the services of ________.
A)UDP
B)IP
C)TCP
D)none of the choices are correct
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 choices are correct
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.
A)maximize throughput
B)minimize delay
C)minimize error
D)none of the choices are correct
5

For control connection, FTP uses the __________ character set
A)regular ASCII
B)EBCDIC
C)NVT ASCII
D)none of the choices are correct
6

During an FTP session the control connection is opened _______.
A)exactly once
B)exactly twice
C)as many times as necessary
D)none of the choices are correct
7

During an FTP session the data connection is opened _______.
A)exactly once
B)exactly twice
C)as many times as necessary
D)none of the choices are correct
8

In FTP, a file can be organized into records, pages, or a stream of bytes. These are types of an attribute called _______.
A)file types
B)data structures
C)transmission modes
D)none of the choices are correct
9

In FTP, there are three types of _______: stream, block, and compressed.
A)file types
B)data structures
C)transmission modes
D)none of the choices are correct
10

In FTP, ASCII, EBCDIC, and image define an attribute called _______.
A)file type
B)data structure
C)transmission mode
D)none of the choices are correct
11

In FTP, which category of commands is used to store and retrieve files?
A)file transfer commands
B)access commands
C)file management commands
D)none of the choices are correct
12

In FTP, which category of commands defines the port number for the data connection on the client site?
A)file transfer commands
B)access commands
C)port defining commands
D)none of the choices are correct
13

In FTP, which category of commands sets the attributes (file type, data structure, and transmission modes) of a file to be transferred?
A)file transfer commands
B)access commands
C)data formatting commands
D)none of the choices are correct
14

In FTP, which category of commands lets a user switch directories and create or delete directories?
A)file transfer commands
B)access commands
C)file management commands
D)none of the choices are correct
15

In FTP, when we _______, it is copied from the client to the server.
A)retrieve a file
B)store a file
C)open a file
D)none of the choices are correct
16

TFTP uses the services of ________.
A)TCP
B)UDP
C)IP
D)none of the choices are correct
17

In TFTP, what type of message is sent in response to an RRQ that fails to establish a connection?
A)WRQ
B)DATA
C)ERROR
D)none of the choices are correct
18

In TFTP, what type of message is sent to establish a connection to retrieve a file?
A)RRQ
B)WRQ
C)DATA
D)none of the choices are correct
19

In TFTP, which type of message is always a set number of bytes?
A)RRQ
B)WRQ
C)ACK
D)none of the choices are correct
20

In TFTP, a connection is terminated with a _______ block.
A)DATA
B)ACK
C)ERROR
D)none of the choices are correct
21

An unauthorized user tries to send a file to a server using TFTP. What should be the response of the server?
A)ACK
B)ERROR
C)DATA
D)none of the choices are correct
22

In TFTP, the block number on a DATA message is 22. This always means _______.
A)there were 21 previous blocks
B)there were 20 previous blocks
C)this is the last block
D)none of the choices are correct
23

In TFTP, connection termination is signaled by a DATA message with _______ bytes.
A)any positive number of
B)512
C)0 to 511
D)all of the above
24

The flow-control mechanism in TFTP _______.
A)requires an ACK for every DATA message
B)is called sliding window
C)is nonexistent
D)none of the choices are correct
25

In TFTP, if a duplicate DATA message is received, _______.
A)the sender sends an error message
B)the connection is terminated
C)the receiver discards the duplicate
D)none of the choices are correct