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Data Communication MCQs with Answers

Practice important Data Communication MCQs with answers and explanations.

Multiple Choice Questions

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Q2451: Which of the following is a key challenge in multiple-access protocols for broadcast networks?
  • A: Packet fragmentation
  • B: Link contention
  • C: IP routing
  • D: Packet sequencing
View Answer
B

Q2452: In random-access or contention, which station has control over others?
  • A: First station
  • B: Leader station
  • C: No station
  • D: One with the highest priority
View Answer
C

Q2453: In random-access protocols, the decision to send data depends on _______.
  • A: the size of the data
  • B: packet type
  • C: the state of the medium
  • D: idle or busy state
View Answer
C

Q2454: What does the station check before sending data in a random-access protocol?
  • A: Network topology
  • B: Medium state
  • C: Packet length
  • D: Transmission speed
View Answer
B

Q2455: Fill in the blank: In random-access protocols, the station’s decision to send data depends on whether the medium is _______ or _______.
  • A: idle, busy
  • B: ready, free
  • C: clear, blocked
  • D: empty, full
View Answer
A

Q2456: Which of the following describes the relationship between stations in a random-access protocol?
  • A: One station has priority
  • B: No station is superior
  • C: One station controls the medium
  • D: Stations are grouped in clusters
View Answer
B

Q2457: What is the key factor in deciding whether to send data in random-access protocols?
  • A: Protocol timing
  • B: Signal strength
  • C: Medium state
  • D: Packet content
View Answer
C

Q2458: In random-access protocols, if the medium is busy, a station _______ send its data.
  • A: will immediately
  • B: waits until it’s free
  • C: sends without checking
  • D: chooses a random time
View Answer
B

Q2459: Fill in the blank: In a random-access protocol, a station makes a decision based on whether the medium is _______.
  • A: empty
  • B: full
  • C: busy
  • D: idle
View Answer
D

Q2460: Which statement best describes a random-access protocol?
  • A: A station always has control
  • B: Stations decide when to send based on medium state
  • C: One station is always the leader
  • D: The protocol is not based on contention
View Answer
B

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