Computer Networks MCQs with Answers
Practice important Computer Networks MCQs with answers and explanations.
Chapter: 7
Q261:
Manchester encoding uses ________ to encode data.
A. signal strength
B. signal changes
C. pulse shifts
D. time slots
Correct Answer:
B
Chapter: 7
Q262:
LAN started developing in the ________.
A. 1960s
B. 1970s
C. 1980s
D. 1990s
Correct Answer:
A
Chapter: 7
Q263:
Ethernet was invented in the decade of ________.
A. 1950s
B. 1960s
C. 1970s
D. 1980s
Correct Answer:
C
Chapter: 7
Q264:
Star topology is logically like a ________.
A. tree
B. loop
C. bus
D. star
Correct Answer:
D
Chapter: 7
Q265:
Ring topology forms a ________ loop of computers.
A. closed
B. open
C. half
D. full
Correct Answer:
A
Chapter: 7
Q266:
Bus topology uses a ________ coaxial cable.
A. single
B. dual
C. looped
D. switch-based
Correct Answer:
A
Chapter: 7
Q267:
LANs are cost-effective because they ________.
A. reduce distance
B. require less electricity
C. reduce number of connections
D. use optical cables
Correct Answer:
C
Chapter: 7
Q268:
LANs are most effective when communication follows ________.
A. spatial locality
B. temporal locality
C. random topology
D. point-to-point system
Correct Answer:
A
Chapter: 7
Q269:
Temporal locality is useful to decide ________.
A. network cable type
B. which computers to add
C. which LAN topology to use
D. network software
Correct Answer:
B
Chapter: 7
Q270:
All computers in a bus topology are connected to a ________ cable.
A. coaxial
B. USB
C. optical
D. serial
Correct Answer:
A
Chapter: 7
Q271:
A hub is used in ________ topology.
A. ring
B. bus
C. star
D. tree
Correct Answer:
C
Chapter: 7
Q272:
Ethernet segment length limit is ________.
A. 100m
B. 200m
C. 500m
D. 1000m
Correct Answer:
C
Chapter: 7
Q273:
LANs are the most popular form of ________.
A. wireless networks
B. satellite systems
C. computer networks
D. sensor networks
Correct Answer:
C
Chapter: 7
Q274:
Manchester encoding uses voltage transition to represent ________.
A. data errors
B. control bits
C. data
D. bit timing
Correct Answer:
C
Chapter: 7
Q275:
Ethernet uses ________ encoding technique.
A. Binary
B. Manchester
C. NRZ
D. ASCII
Correct Answer:
B
Chapter: 7
Q276:
LANs rely on ________ medium for data transmission.
A. shared
B. point-to-point
C. private
D. satellite
Correct Answer:
A
Chapter: 7
Q277:
Temporal locality implies communication is ________.
A. repeated with same computer
B. spread across cities
C. unpredictable
D. from different continents
Correct Answer:
A
Chapter: 8
Q278:
What is the purpose of CSMA in Ethernet?
A. To store data
B. To encrypt signals
C. To coordinate transmissions
D. To increase bandwidth
Correct Answer:
C
Chapter: 8
Q279:
What happens if two computers transmit simultaneously in Ethernet?
A. Transmission is delayed
B. A token is passed
C. Frames interfere and collide
D. Data is compressed
Correct Answer:
C
Chapter: 8
Q280:
What does Ethernet use to detect a collision?
A. Software algorithm
B. Carrier wave
C. CDMA technique
D. Hardware to monitor signals
Correct Answer:
D