Computer Networks MCQs with Answers
Practice important Computer Networks MCQs with answers and explanations.
Chapter: 6
Q201:
In direct point-to-point networks, how many new connections are needed to add one computer?
A. 1
B. N
C. (N-1)^2
D. N-1
Correct Answer:
D
Chapter: 6
Q202:
LAN technology allows ______ to take turns using the shared medium.
A. Only one device
B. Multiple devices
C. Only routers
D. Printers only
Correct Answer:
B
Chapter: 6
Q203:
CRC is used in ________ to detect errors.
A. Disk drives
B. Frame formats
C. Bus topologies
D. Routers
Correct Answer:
B
Chapter: 6
Q204:
Each bit in CRC hardware is processed using a ________.
A. Divider
B. Register
C. XOR and shift operation
D. Multiplexer
Correct Answer:
C
Chapter: 6
Q205:
Which of the following best describes CRC?
A. Error correction method
B. Error detection method
C. Compression technique
D. Coding format
Correct Answer:
B
Chapter: 6
Q206:
When all 16 bits are shifted in CRC hardware, the CRC is found in ________.
A. XOR units
B. Frame headers
C. Registers
D. Transmitted data
Correct Answer:
C
Chapter: 6
Q207:
CRC is better than checksum in detecting ________.
A. Parity faults
B. Bit stuffing
C. Multiple-bit burst errors
D. Single-bit faults
Correct Answer:
C
Chapter: 6
Q208:
The frame format includes CRC for ______.
A. Error correction
B. Error detection
C. Data duplication
D. Header compression
Correct Answer:
B
Chapter: 6
Q209:
Early networks used ______ communication for each channel.
A. Point-to-point
B. Bus
C. Star
D. Ring
Correct Answer:
A
Chapter: 6
Q210:
To enable CRC, the shift register must be ________ before input.
A. Set to 1
B. Rotated
C. Initialized to 0
D. Flushed
Correct Answer:
C
Chapter: 6
Q211:
CRC uses two main components: _______ and XOR unit.
A. Transistor
B. Divider
C. Shift register
D. Router
Correct Answer:
C
Chapter: 6
Q212:
Adding a new computer to a point-to-point network requires ______ new connections.
A. 2
B. N
C. N-1
D. N+1
Correct Answer:
C
Chapter: 6
Q213:
Point-to-point networks grow ______ than the number of computers.
A. Slower
B. Faster
C. At the same rate
D. Exponentially
Correct Answer:
B
Chapter: 6
Q214:
A 16-bit CRC has how many bits in the result?
A. 8
B. 12
C. 16
D. 32
Correct Answer:
C
Chapter: 6
Q215:
In direct communication, each link can have a different ________.
A. Router
B. Topology
C. Frame format
D. Bandwidth
Correct Answer:
C
Chapter: 6
Q216:
Shift operation used in CRC hardware is mostly ______ oriented.
A. Word
B. Byte
C. Bit
D. Nibble
Correct Answer:
C
Chapter: 6
Q217:
XOR operation in CRC helps in ________.
A. Shifting data
B. Parity checking
C. Error detection
D. Encryption
Correct Answer:
C
Chapter: 6
Q218:
LANs are designed to share ______ among computers.
A. Videos
B. Resources
C. Monitors
D. Applications
Correct Answer:
B
Chapter: 6
Q219:
Direct communication helps in enforcing ______.
A. Encryption
B. Privacy
C. Errors
D. Overhead
Correct Answer:
B
Chapter: 6
Q220:
Which CRC component moves data left by one position?
A. Buffer
B. Shift Register
C. XOR Unit
D. Parity Checker
Correct Answer:
B