Computer Networks MCQs with Answers
Practice important Computer Networks MCQs with answers and explanations.
Multiple Choice Questions
Q221: CRC stands for __________.
- A: Cyclic Redundancy Check
- B: Code Rate Calculation
- C: Correcting Result Code
- D: Centralized Routing Code
View Answer
A
Q222: Vertical errors usually occur due to __________.
- A: Software bugs
- B: Human error
- C: Hardware failure
- D: Packet loss
View Answer
C
Q223: Burst errors often occur due to __________.
- A: Computer viruses
- B: Noise from power sources
- C: Hardware breakdown
- D: Programming bugs
View Answer
B
Q224: To detect burst errors effectively, ______ is used.
- A: Bit stuffing
- B: Parity check
- C: CRC
- D: Compression
View Answer
C
Q225: The number of point-to-point links in a 4-computer system is __________.
- A: 4
- B: 6
- C: 8
- D: 12
View Answer
B
Q226: The development of shared communication channels began in the ________.
- A: 1950s
- B: 1960s
- C: 1980s
- D: 1990s
View Answer
B
Q227: The key idea behind LAN technology was to ________.
- A: increase delays
- B: increase connections
- C: reduce number of connections
- D: limit communication
View Answer
C
Q228: In LAN, each computer uses the medium ________.
- A: simultaneously
- B: randomly
- C: at night
- D: in turns
View Answer
D
Q229: What is the main drawback of sharing a single medium over long distances?
- A: High speed
- B: Low cost
- C: Long delays
- D: More security
View Answer
C
Q230: LAN technologies reduce cost by ________.
- A: adding more wires
- B: reducing software cost
- C: reducing number of connections
- D: using fiber optics
View Answer
C