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MCQs

Total Questions : 10
Question 1. The physical layer concerns with:
  1.    bit-by-bit delivery
  2.    process to process delivery
  3.    application to application delivery
  4.    none of the mentioned
 Discuss Question
Answer: Option A. -> bit-by-bit delivery


None.


Question 2. The portion of physical layer that interfaces with the media access control sublayer is called:
  1.    physical signalling sublayer
  2.    physical data sublayer
  3.    physical address sublayer
  4.    none of the mentioned
 Discuss Question
Answer: Option A. -> physical signalling sublayer


None.


Question 3. physical layer provides:
  1.    mechanical specifications of electrical connectors and cables
  2.    electrical specification of transmission line signal level
  3.    specification for IR over optical fiber
  4.    all of the mentioned
 Discuss Question
Answer: Option D. -> all of the mentioned


None.


Question 4. Bits can be send over guided and unguided media as analog signal by:
  1.    digital modulation
  2.    amplitude modulation
  3.    frequency modulation
  4.    phase modulation
 Discuss Question
Answer: Option A. -> digital modulation


None.


Question 5. Which transmission media has the highest transmission speed in a network?
  1.    coaxial cable
  2.    twisted pair cable
  3.    optical fiber
  4.    electrical cable
 Discuss Question
Answer: Option C. -> optical fiber


None.


Question 6. In asynchronous serial communication the physical layer provides:
  1.    start and stop signalling
  2.    flow control
  3.    both (a) and (b)
  4.    none of the mentioned
 Discuss Question
Answer: Option C. -> both (a) and (b)


None.


Question 7. The physical layer is responsible for:
  1.    line coding
  2.    channel coding
  3.    modulation
  4.    all of the mentioned
 Discuss Question
Answer: Option D. -> all of the mentioned


None.


Question 8. A single channel is shared by multiple signals by:
  1.    analog modulation
  2.    digital modulation
  3.    multiplexing
  4.    none of the mentioned
 Discuss Question
Answer: Option C. -> multiplexing


None.


Question 9. The physical layer translates logical communication requests from the ______ into hardware specific operations.
  1.    data link layer
  2.    network layer
  3.    trasnport layer
  4.    application layer
 Discuss Question
Answer: Option A. -> data link layer


None.


Question 10. Wireless transmission can be done via:
  1.    radio waves
  2.    microwaves
  3.    infrared
  4.    all of the mentioned
 Discuss Question
Answer: Option D. -> all of the mentioned


None.


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