Electronics and Communication Engineering - Digital Electronics

1. 

What is the direction of control bus?

A. Unidirection into μp
B. Unidirection out of up
C. Bidirectional
D. Mixed direction i.e., some lines into μp and some other out of μp

Answer: Option D

Explanation:

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2. 

In the given figure assume that initially Q = 1 with Clock Pulses being given, the subsequent states of Q will be

A. 1, 0, 1, 0, 1......
B. 0, 0, 0, 0, 0......
C. 1, 1, 1, 1, 1......
D. 0, 1, 0, 1, 0......

Answer: Option C

Explanation:

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3. 

The Boolean expression (A + B) (A + C) (B + C) simplifies to

A. (A + B) C
B. (A + B) C
C. (A + B) C
D. none of these

Answer: Option C

Explanation:

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4. 

If Vin is 0.99 V, what is the digital output of the ADC 0801 after INTER goes low?

A. 0011 0011
B. 0101 1111
C. 0111 1100
D. 1111 1111

Answer: Option A

Explanation:

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5. 

Which of the following operation are performed on linear queues?

  1. Testing a linear queue for underflow
  2. Enqueue operation
  3. Dequeue operation
  4. Testing a linear queue for overflow.
Select the correct answer using the codes given below the lists

A. 1, 2 and 3
B. 2, 3 and 4
C. 1, 3 and 4
D. 1, 2, 3 and 4

Answer: Option D

Explanation:

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