Computer Networks Questions & Answers – TCP-1 MCQ أسئله شبكات بالأجابات الجزء الثاني والثلاثون

Computer Networks Questions & Answers – TCP-1 

1. Which of the following is true with respect to TCP
a) Connection-oriented
b) Process-to-process
c) Transport layer protocol
d) All of the mentioned

Answer: d
Explanation: TCP is a transport layer protocol, process-to-process, and creates a virtual connection between two TCP’s.

2. In TCP, sending and receiving data is done as
a) Stream of bytes
b) Sequence of characters
c) Lines of data
d) Packets

Answer: a
Explanation: In TCP, data is sent and received in terms of Stream of bytes.

3. TCP process may not write and read data at the same speed. So we need __________ for storage.
a) Packets
b) Buffers
c) Segments
d) Stacks

Answer: b
Explanation: TCP needs buffers for storage to overcome this problem.

4. TCP groups a number of bytes together into a packet called
a) Packet
b) Buffer
c) Segment
d) Stack

Answer: c
Explanation: Segment is a grouping of number of bytes together into a packet.

5. Communication offered by TCP is
a) Full-duplex
b) Half-duplex
c) Semi-duplex
d) Byte by byte

Answer: a
Explanation: Data flow in both the directions at the same time during TCP communication hence, Full-duplex.

6. To achieve reliable transport in TCP, ___________ is used to check the safe and sound arrival of data.
a) Packet
b) Buffer
c) Segment
d) Acknowledgment

Answer: d
Explanation: Acknowledgment mechanism is used to check the safe and sound arrival of data.

7. In segment header, sequence number and acknowledgement number field refers to
a) Byte number
b) Buffer number
c) Segment number
d) Acknowledgment

Answer: a
Explanation: Sequence number and acknowledgement number field refers to byte number.

8. Suppose a TCP connection is transferring a file of 1000 bytes. The first byte is numbered 10001. What is the sequence number of the segment if all data is sent in only one segment.
a) 10000
b) 10001
c) 12001
d) 11001

Answer: b
Explanation: The sequence number of each segment is the number of first byte carried in that segment.

9. Bytes of data being transferred in each connection are numbered by TCP. These numbers starts with a
a) Random number
b) Zero
c) One
d) Sequence of zero’s and one’s

Answer: d
Explanation: These numbers starts with a random number.

10. The value of acknowledgement field in a segment defines
a) Number of previous bytes to receive
b) Total number of bytes to receive
c) Number of next bytes to receive
d) Sequence of zero’s and one’s

Answer: c
Explanation: Acknowledgement field in a segment defines the number of next bytes to receive.

 
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