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Data Communication MCQs with Answers

Practice important Data Communication MCQs with answers and explanations.

Multiple Choice Questions

Q3381: Routers use which protocol to route data between networks?
  • A: HTTP
  • B: TCP/IP
  • C: FTP
  • D: SMTP
View Answer
B

Q3382: Fill in the blank: The three main categories of connecting devices are hubs, ______, and routers.
  • A: cables
  • B: clients
  • C: switches
  • D: networks
View Answer
C

Q3383: Which device connects two or more different networks together?
  • A: Switch
  • B: Router
  • C: Hub
  • D: Repeater
View Answer
B

Q3384: Which connecting device is considered the simplest form?
  • A: Switch
  • B: Hub
  • C: Router
  • D: Gateway
View Answer
B

Q3385: Fill in the blank: A ______ learns MAC addresses and sends frames only to the correct destination port.
  • A: Hub
  • B: Switch
  • C: Router
  • D: Bridge
View Answer
B

Q3386: What layer does a hub operate in?
  • A: Transport layer
  • B: Application layer
  • C: Physical layer
  • D: Network layer
View Answer
C

Q3387: Fill in the blank: A ______ is a device that operates only at the physical layer.
  • A: switch
  • B: hub
  • C: router
  • D: modem
View Answer
B

Q3388: Which device regenerates signals before they become too weak or corrupted?
  • A: Router
  • B: Hub
  • C: Switch
  • D: Gateway
View Answer
B

Q3389: What is the primary function of a hub in a network?
  • A: Filter traffic
  • B: Route packets
  • C: Regenerate signals
  • D: Encrypt data
View Answer
C

Q3390: Fill in the blank: A hub acts as a _______ by regenerating weakened signals.
  • A: bridge
  • B: monitor
  • C: repeater
  • D: switch
View Answer
C

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