Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q3111: Which of the following describes the function of an Add/Drop Multiplexer (ADM) in SONET?
- A: It adds or drops specific channels from a higher-rate signal without disturbing the entire frame.
- B: It multiplies data rate of signals.
- C: It creates multiple copies of signals for redundancy.
- D: It handles the compression of signals.
View Answer
A
Q3112: Fill in the blank: In SONET, Byte Interleaving is used for _______ multiplexing.
- A: STS signals
- B: Optical carriers
- C: SDH signals
- D: Frame signals
View Answer
A
Q3113: The combination of lower-rate STS signals into higher-rate STS signals in SONET is an example of _______.
- A: Multiplexing
- B: Demultiplexing
- C: Frame separation
- D: Signal splitting
View Answer
A
Q3114: Which of the following statements is true about Byte Interleaving in SONET?
- A: Byte Interleaving is used to combine bits from multiple channels into one higher-rate frame.
- B: Byte Interleaving is used to split signals into individual frames.
- C: Byte Interleaving is a form of encryption for SONET data.
- D: Byte Interleaving is not used in SONET.
View Answer
A
Q3115: Fill in the blank: The SONET multiplexing process allows for the combination of multiple _______ rate signals into a higher-rate signal.
- A: Lower
- B: Fixed
- C: Variable
- D: Higher
View Answer
A
Q3116: Which of the following is a primary function of SONET multiplexing?
- A: Combining multiple lower-rate signals into one higher-rate signal.
- B: Changing the format of the signal to analog.
- C: Converting signal frequency for synchronization.
- D: Encrypting signals for security.
View Answer
A
Q3117: In SONET, which signal type can be used for multiplexing?
- A: STS-1
- B: STS-3
- C: STS-12
- D: All of the above
View Answer
D
Q3118: The process of demultiplexing in SONET involves _______.
- A: Separating a higher-rate signal into its lower-rate components
- B: Combining lower-rate signals into a higher-rate signal
- C: Shifting signal frequencies
- D: Encrypting signals for data security
View Answer
A
Q3119: Fill in the blank: The SONET system allows for the efficient _______ of signals to meet bandwidth requirements.
- A: Multiplexing
- B: Compression
- C: Encryption
- D: Conversion
View Answer
A
Q3120: What is the main advantage of SONET multiplexing?
- A: It increases the efficiency of signal transmission by allowing multiple lower-rate signals to be combined into one higher-rate signal.
- B: It decreases the complexity of signal routing.
- C: It converts analog signals into digital without the need for processing.
- D: It ensures secure transmission of data.
View Answer
A