Computer Networks MCQs with Answers
Practice important Computer Networks MCQs with answers and explanations.
Multiple Choice Questions
Q941: The IP protocol provides ________ delivery service.
- A: Guaranteed and ordered
- B: Best-effort
- C: Reliable
- D: Connection-oriented
View Answer
B
Q942: Which IP datagram field is NOT transmitted to the next hop but used internally by routers?
- A: Source address
- B: Next-hop address
- C: Destination address
- D: Fragment offset
View Answer
B
Q943: The HEADER CHECKSUM field is calculated using which method?
- A: 2’s complement
- B: 1’s complement
- C: MD5 hashing
- D: XOR operation
View Answer
B
Q944: What is the typical size of the IP header without options?
- A: 20 octets
- B: 32 octets
- C: 64 octets
- D: 8 octets
View Answer
A
Q945: The fragmentation FLAG bit set to 1 indicates ________.
- A: More fragments follow
- B: This is the last fragment
- C: Fragment is lost
- D: Fragment is corrupted
View Answer
A
Q946: IP datagram with no options has H.LEN field value ________.
- A: 3
- B: 4
- C: 5
- D: 6
View Answer
C
Q947: The fragment offset field in IP header indicates ________.
- A: Position of fragment in original datagram
- B: Size of fragment
- C: Number of fragments
- D: TTL
View Answer
A
Q948: Fragments arriving out of order are reassembled by ________.
- A: Using IDENT and fragment offset
- B: Using TTL and checksum
- C: Using FLAGS only
- D: Using total length
View Answer
A
Q949: If TTL in datagram reaches zero, what happens?
- A: Datagram is discarded
- B: Datagram is forwarded
- C: Datagram is fragmented
- D: Datagram is reassembled
View Answer
A
Q950: Fragments can be lost and cause the original datagram to be ________.
- A: Dropped
- B: Reassembled
- C: Forwarded
- D: Modified
View Answer
A