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Data Communication MCQs with Answers

Practice important Data Communication MCQs with answers and explanations.

Multiple Choice Questions

Q2761: Fill in the blank: Ethernet leaves error handling to ______.
  • A: the NIC card
  • B: the cable
  • C: higher-level protocols
  • D: the IP layer
View Answer
C

Q2762: In Standard Ethernet, which of the following is NOT a feature?
  • A: No connection setup
  • B: Independent frames
  • C: Connection teardown
  • D: Guaranteed delivery
View Answer
D

Q2763: What ensures that dropped frames are recovered in Ethernet communication?
  • A: Ethernet itself
  • B: Hardware protocols
  • C: Higher-level protocols
  • D: Physical cable quality
View Answer
C

Q2764: Fill in the blank: A feature of connectionless service is that the sender ______.
  • A: must wait for ACKs
  • B: is notified of loss
  • C: is unaware of loss
  • D: uses buffering techniques
View Answer
C

Q2765: Which of the following is true about Ethernet's frame delivery?
  • A: It uses handshaking
  • B: It's always reliable
  • C: It's best-effort delivery
  • D: It uses error correction
View Answer
C

Q2766: What is the role of TCP when used over Ethernet?
  • A: It compresses data
  • B: It ensures connectionless communication
  • C: It ensures reliable delivery
  • D: It routes packets
View Answer
C

Q2767: How many bytes are there in an Ethernet MAC address?
  • A: 4
  • B: 6
  • C: 8
  • D: 10
View Answer
B

Q2768: What is the total number of bits in an Ethernet MAC address?
  • A: 32 bits
  • B: 64 bits
  • C: 48 bits
  • D: 128 bits
View Answer
C

Q2769: What does a NIC provide to a station?
  • A: Power supply
  • B: Physical memory
  • C: Link layer/physical address
  • D: IP address
View Answer
C

Q2770: Fill in the blank: A MAC address is typically represented in ______ format.
  • A: binary
  • B: decimal
  • C: hexadecimal
  • D: ASCII
View Answer
C

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