Computer Networks MCQs with Answers
Practice important Computer Networks MCQs with answers and explanations.
Chapter: 6
Q221:
CRC stands for __________.
A. Cyclic Redundancy Check
B. Code Rate Calculation
C. Correcting Result Code
D. Centralized Routing Code
Correct Answer:
A
Chapter: 6
Q222:
Vertical errors usually occur due to __________.
A. Software bugs
B. Human error
C. Hardware failure
D. Packet loss
Correct Answer:
C
Chapter: 6
Q223:
Burst errors often occur due to __________.
A. Computer viruses
B. Noise from power sources
C. Hardware breakdown
D. Programming bugs
Correct Answer:
B
Chapter: 6
Q224:
To detect burst errors effectively, ______ is used.
A. Bit stuffing
B. Parity check
C. CRC
D. Compression
Correct Answer:
C
Chapter: 6
Q225:
The number of point-to-point links in a 4-computer system is __________.
A. 4
B. 6
C. 8
D. 12
Correct Answer:
B
Chapter: 7
Q226:
The development of shared communication channels began in the ________.
A. 1950s
B. 1960s
C. 1980s
D. 1990s
Correct Answer:
B
Chapter: 7
Q227:
The key idea behind LAN technology was to ________.
A. increase delays
B. increase connections
C. reduce number of connections
D. limit communication
Correct Answer:
C
Chapter: 7
Q228:
In LAN, each computer uses the medium ________.
A. simultaneously
B. randomly
C. at night
D. in turns
Correct Answer:
D
Chapter: 7
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
Correct Answer:
C
Chapter: 7
Q230:
LAN technologies reduce cost by ________.
A. adding more wires
B. reducing software cost
C. reducing number of connections
D. using fiber optics
Correct Answer:
C
Chapter: 7
Q231:
Which communication type is used in long-distance networks?
A. LAN
B. WiFi
C. Point-to-point
D. Ethernet
Correct Answer:
C
Chapter: 7
Q232:
LAN communication consists exclusively of ________.
A. point-to-point
B. LAN
C. WiFi
D. satellite
Correct Answer:
B
Chapter: 7
Q233:
The demand for LANs is driven by the ________ principle.
A. Efficiency
B. Locality of Reference
C. Speed
D. Centralized
Correct Answer:
B
Chapter: 7
Q234:
Which of the following helps in predicting communication patterns in networks?
A. Temporal Model
B. Reference Table
C. Locality of Reference
D. Distance Table
Correct Answer:
C
Chapter: 7
Q235:
Spatial locality of reference suggests computers communicate with ________.
A. distant systems
B. mobile phones
C. nearby computers
D. cloud networks
Correct Answer:
C
Chapter: 7
Q236:
Temporal locality of reference suggests computers communicate with ________.
A. same computers repeatedly
B. random computers
C. infrequently changing servers
D. random devices
Correct Answer:
A
Chapter: 7
Q237:
Which pattern suggests communication with nearby computers?
A. Temporal locality
B. Spatial locality
C. Linear locality
D. Random locality
Correct Answer:
B
Chapter: 7
Q238:
Which pattern suggests repeated communication with the same computers?
A. Spatial locality
B. Linear model
C. Temporal locality
D. Random model
Correct Answer:
C
Chapter: 7
Q239:
LANs are effective due to ________.
A. linear locality
B. cloud reference
C. spatial locality
D. random addressing
Correct Answer:
C
Chapter: 7
Q240:
LAN topologies are classified by ________.
A. IP address
B. Speed
C. Shape
D. Device type
Correct Answer:
C