Question 1

Ensuring that TCP recovers from lost and duplicate packets is called _____.

Accepted Answer

A)  reliability
B)  flow control
C)  multiplexing
D)  segmentation
E)  connection establishment

Question 2

UDP is used when _____.

Accepted Answer

A)  large quantities of data are to be transferred
B)  small quantities of data are to be transferred
C)  ordered and reliable delivery is not necessary for an application
D)  ordered and reliable delivery is required for an application

Question 3

The standard ports in TCP are port numbers in the range _____.

Accepted Answer

A)  1 - 1,023
B)  1 - 100
C)  1 - 65,535
D)  1 - 10,000

Question 4

The sequence numbers added by TCP to every datagram enable the detection of _____.

Accepted Answer

A)  duplicate segments
B)  lost segments
C)  bit level errors
D)  A and B
E)  A and C

Question 5

Standard ports are defined in TCP for _____.

Accepted Answer

A)  web browsers
B)  common network server applications
C)  common network client applications
D)  common desktop applications

Question 6

The mechanism used for flow control in TCP is _____.

Accepted Answer

A)  sliding window
B)  three-way handshake
C)  stop-and-wait
D)  CSMA/ CD

Question 7

Multiplexing at the transport layer enables _____.

Accepted Answer

A)  multiple applications on the host to share a common network connection
B)  multiple hosts to share a common physical medium
C)  Both of the above
D)  None of the above

Question 8

The transport layer protocol that does not provide end-to-end reliability over packet switched networks is _____.

Accepted Answer

A)  IP
B)  UDP
C)  TCP
D)  HTTP

Question 9

The advantages of UDP include _____.

Accepted Answer

A)  it can be faster than TCP
B)  it is simpler than TCP
C)  it is suitable for multi-media applications
D)  it is as reliable as TCP D

Question 10

TCP assigns a sequence number to every byte of data to _____.

Accepted Answer

A)  enable better detection of bit-level errors
B)  enable the receiver to acknowledge partial datagrams
C)  simplify counting of segments
D)  None of the above

Question 11

The advantages of segmentation in TCP include _____.

Accepted Answer

A)  reduction in the likelihood of errors in each datagram
B)  reduction in the amount of rework if a datagram is lost
C)  simplification of router hardware
D)  All of the above

Question 12

Breaking application data of arbitrary size into smaller fragments for delivery by IP is called _____.

Accepted Answer

A)  reliability
B)  flow control
C)  multiplexing
D)  segmentation
E)  connection establishment

Question 13

The window size field in TCP specifies the _____.

Accepted Answer

A)  amount of data the receiver is capable of processing
B)  amount of data the sender is capable of processing
C)  size of the window in the data center where the sender is located
D)  sequence number of the last received datagram

Question 14

Flow control in TCP is used to _____.

Accepted Answer

A)  speed up the receiver if necessary
B)  speed up the sender if necessary
C)  slow down the receiver if necessary
D)  slow down the sender if necessary

Question 15

The transport layer protocol that provides end-to-end reliability over packet switched networks is _____.

Accepted Answer

A)  IP
B)  UDP
C)  TCP
D)  HTTP

Question 16

Optimizing the transmission rate in TCP to minimize lost packets is called _____.

Accepted Answer

A)  reliability
B)  flow control
C)  multiplexing
D)  segmentation
E)  connection establishment

Question 17

The three-way handshake is used in _____.

Accepted Answer

A)  reliability
B)  flow control
C)  multiplexing
D)  segmentation
E)  connection establishment

Question 18

A TCP segment with sequence number 1,000 has a length of 350 Bytes.The next segment in the sequence will have a sequence number of _____.

Accepted Answer

A)  1000
B)  1001
C)  1350
D)  1351

Question 19

When a TCP connection is initiated,the sequence number of the first datagram is _____.

Accepted Answer

A)  1
B)  a randomly chosen number
C)  Either A or B
D)  None of the above B

Question 20

A communication socket or Internet socket is defined by an) _____.

Accepted Answer

A)  IP address
B)  port address
C)  IP address and port address together
D)  None of the above C

Exam 5: Transport Layer

Ensuring that TCP recovers from lost and duplicate packets is called _____.

Correct AnswerverifiedShow Answer

UDP is used when _____.

Correct AnswerverifiedShow Answer

The standard ports in TCP are port numbers in the range _____.

Correct AnswerverifiedShow Answer

The sequence numbers added by TCP to every datagram enable the detection of _____.

Correct AnswerverifiedShow Answer

Standard ports are defined in TCP for _____.

Correct AnswerverifiedShow Answer

The mechanism used for flow control in TCP is _____.

Correct AnswerverifiedShow Answer

Multiplexing at the transport layer enables _____.

Correct AnswerverifiedShow Answer

The transport layer protocol that does not provide end-to-end reliability over packet switched networks is _____.

Correct AnswerverifiedShow Answer

The advantages of UDP include _____.

Correct AnswerverifiedD

TCP assigns a sequence number to every byte of data to _____.

Correct AnswerverifiedShow Answer

The advantages of segmentation in TCP include _____.

Correct AnswerverifiedShow Answer

Breaking application data of arbitrary size into smaller fragments for delivery by IP is called _____.

Correct AnswerverifiedShow Answer

The window size field in TCP specifies the _____.

Correct AnswerverifiedShow Answer

Flow control in TCP is used to _____.

Correct AnswerverifiedShow Answer

The transport layer protocol that provides end-to-end reliability over packet switched networks is _____.

Correct AnswerverifiedShow Answer

Optimizing the transmission rate in TCP to minimize lost packets is called _____.

Correct AnswerverifiedShow Answer

The three-way handshake is used in _____.

Correct AnswerverifiedShow Answer

A TCP segment with sequence number 1,000 has a length of 350 Bytes.The next segment in the sequence will have a sequence number of _____.

Correct AnswerverifiedShow Answer

When a TCP connection is initiated,the sequence number of the first datagram is _____.

Correct AnswerverifiedB

A communication socket or Internet socket is defined by an) _____.

Correct AnswerverifiedC

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