Test: DP: Transport Layer


10 Questions MCQ Test Computer Networks | Test: DP: Transport Layer


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Attempt Test: DP: Transport Layer | 10 questions in 10 minutes | Mock test for Computer Science Engineering (CSE) preparation | Free important questions MCQ to study Computer Networks for Computer Science Engineering (CSE) Exam | Download free PDF with solutions
QUESTION: 1

 Which of the following is false with respect to UDP

Solution:

Answer: a
Explanation: UDP is an unreliable, connectionless transport layer protocol.

QUESTION: 2

Return value of the UDP port “Chargen” is

Solution:

Answer: a
Explanation: Chargen with port number 19 returns string of characters.

QUESTION: 3

Beyond IP, TCP provides additional services such as

Solution:

Answer: d
Explanation: UDP is a simple protocol which provides demultiplexing and error checking.

QUESTION: 4

The main advantage of UDP is

Solution:

Answer: c
Explanation: UDP is an unreliable, connectionless transport layer protocol and uses minimum overload.

QUESTION: 5

Port number used by Network Time Protocol(NTP) with UDP is

Solution:

Answer: b
Explanation: Port number used by Network Time Protocol with UDP is 123.

QUESTION: 6

what is the header size of UDP packet?

Solution:

Answer: a
Explanation: The fixed size of the UDP packet header is 8 bytes.

QUESTION: 7

The port number is “ephemeral port number”, if the source host is ……

Solution:

Answer: d
Explanation: If the source host is the client, the port number in most cases will be ephemeral port number.

QUESTION: 8

“Total length” field in UDP packet header is the length of

Solution:

Answer: d
Explanation: Total length is the 16 bit field which contains the length of UDP header and the data.

QUESTION: 9

Correct expression for UDP user datagram length is

Solution:

Answer: a
Explanation: A user datagram is encapsulated in an IP datagram. There is a field in the IP datagram the defines the total length. There is another field in the IP datagram that defines the length of the header. So if we subtract the length of a UDP datagram that is encapsulated in an IP datagram, we get the length of UDP user datagram.

QUESTION: 10

The field used to detect errors over the entire user datagram is

Solution:

Answer: b
Explanation: Checksum field is used to detect errors over the entire user datagram.

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