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Data Communication MCQs with Answers

Practice important Data Communication MCQs with answers and explanations.

Multiple Choice Questions

Q3061: Which SONET layer manages the physical layer of the transmission system?
  • A: Photonic Layer
  • B: Section Layer
  • C: Line Layer
  • D: Path Layer
View Answer
A

Q3062: The SONET frame structure is used to _______.
  • A: Transmit and multiplex data
  • B: Encapsulate data for transmission
  • C: Manage the flow of signals
  • D: Store and retrieve data
View Answer
A

Q3063: Which of the following is true about the SONET frame?
  • A: It defines the structure for data transmission
  • B: It provides error correction for the network
  • C: It is used only for optical data transmission
  • D: It defines the physical devices in the network
View Answer
A

Q3064: Fill in the blank: The SONET frame is divided into _______ bytes for organizing data transmission.
  • A: 9
  • B: 27
  • C: 81
  • D: 243
View Answer
B

Q3065: Which layer in SONET is responsible for end-to-end communication and error correction?
  • A: Section Layer
  • B: Line Layer
  • C: Path Layer
  • D: Photonic Layer
View Answer
C

Q3066: What does the SONET Photonic Layer provide for the network?
  • A: Signal amplification and routing
  • B: Transmission of signals over fiber-optic cables
  • C: Management of network devices
  • D: Flow control between devices
View Answer
B

Q3067: Which SONET layer handles the physical and optical transmission of signals over the network?
  • A: Photonic Layer
  • B: Line Layer
  • C: Path Layer
  • D: Section Layer
View Answer
A

Q3068: Fill in the blank: SONET uses a _______ frame structure for data encapsulation and transmission.
  • A: Fixed-size
  • B: Variable-size
  • C: Segmented
  • D: Compressed
View Answer
A

Q3069: Which functional layer in SONET provides multiplexing and synchronization?
  • A: Line Layer
  • B: Section Layer
  • C: Path Layer
  • D: Photonic Layer
View Answer
A

Q3070: Which of the following layers in SONET is responsible for organizing and framing data for transmission?
  • A: Path Layer
  • B: Photonic Layer
  • C: Section Layer
  • D: Line Layer
View Answer
A

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