Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Chapter: 199
Q3061:
Which SONET layer manages the physical layer of the transmission system?
A. Photonic Layer
B. Section Layer
C. Line Layer
D. Path Layer
Correct Answer:
A
Chapter: 199
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
Correct Answer:
A
Chapter: 199
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
Correct Answer:
A
Chapter: 199
Q3064:
Fill in the blank: The SONET frame is divided into _______ bytes for organizing data transmission.
A. 9
B. 27
C. 81
D. 243
Correct Answer:
B
Chapter: 199
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
Correct Answer:
C
Chapter: 199
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
Correct Answer:
B
Chapter: 199
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
Correct Answer:
A
Chapter: 199
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
Correct Answer:
A
Chapter: 199
Q3069:
Which functional layer in SONET provides multiplexing and synchronization?
A. Line Layer
B. Section Layer
C. Path Layer
D. Photonic Layer
Correct Answer:
A
Chapter: 199
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
Correct Answer:
A
Chapter: 199
Q3071:
Which of the following layers corresponds to the transport of data between devices over a physical medium?
A. Photonic Layer
B. Line Layer
C. Path Layer
D. Section Layer
Correct Answer:
B
Chapter: 199
Q3072:
The SONET framework is designed to carry _______ over a wide-area network (WAN).
A. High-speed data
B. Video signals
C. Control signals
D. Low-speed data
Correct Answer:
A
Chapter: 199
Q3073:
What does the SONET Frame structure consist of for organizing data?
A. Sections and headers
B. Frames and cells
C. Cells and bits
D. Bytes and packets
Correct Answer:
A
Chapter: 199
Q3074:
Which of the following is true about the SONET device-layer relationship?
A. Devices interact with the frame structure and functional layers
B. Devices are only responsible for data reception
C. Devices are independent of the SONET layers
D. Devices provide encryption for data transmission
Correct Answer:
A
Chapter: 199
Q3075:
What is the primary function of the SONET Photonic Layer?
A. It manages network devices
B. It handles data transmission over optical fibers
C. It handles data transmission across copper cables
D. It provides error detection for the network
Correct Answer:
B
Chapter: 199
Q3076:
Fill in the blank: The SONET frame structure includes _______ for synchronization between devices.
A. Timestamp headers
B. Control bits
C. Frame delimiters
D. Transport blocks
Correct Answer:
C
Chapter: 199
Q3077:
Which layer in SONET is primarily responsible for error correction and monitoring?
A. Section Layer
B. Line Layer
C. Path Layer
D. Photonic Layer
Correct Answer:
A
Chapter: 199
Q3078:
What does the SONET Section Layer monitor?
A. Transmission signals across a network path
B. The path of data flow between devices
C. The physical layer of the network
D. The end-to-end communication link
Correct Answer:
A
Chapter: 199
Q3079:
Which of the following layers is responsible for data transmission across the physical fiber-optic network?
A. Photonic Layer
B. Section Layer
C. Path Layer
D. Line Layer
Correct Answer:
A
Chapter: 200
Q3080:
What does each synchronous transport signal (STS-n) consist of?
A. Frames with 9 rows and 90 columns
B. Frames with 9 rows and 270 columns
C. Frames with 9 rows and 90×n columns
D. Frames with 8 rows and 100 columns
Correct Answer:
C