Q. In a 4-bit shift register, how many bits can it hold?
-
A.
2 bits
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B.
4 bits
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C.
8 bits
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D.
16 bits
Solution
A 4-bit shift register can hold exactly 4 bits of data.
Correct Answer:
B
— 4 bits
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Q. In a serial-in parallel-out shift register, how is data entered?
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A.
All at once
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B.
One bit at a time
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C.
In groups of four
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D.
In reverse order
Solution
Data is entered one bit at a time in a serial-in parallel-out shift register.
Correct Answer:
B
— One bit at a time
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Q. In a shift register, what does the term 'clock pulse' refer to?
-
A.
The speed of data transfer
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B.
The timing signal that controls shifting
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C.
The amount of data stored
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D.
The type of shift register
Solution
A clock pulse is a timing signal that controls when the data is shifted in a shift register.
Correct Answer:
B
— The timing signal that controls shifting
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Q. What happens to the bits in a shift register when a shift operation is performed?
-
A.
They are deleted
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B.
They are copied
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C.
They are shifted to the next position
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D.
They are reversed
Solution
During a shift operation, the bits in a shift register are shifted to the next position, either left or right.
Correct Answer:
C
— They are shifted to the next position
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Q. What happens to the data in a shift register when it is reset?
-
A.
Data is preserved
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B.
Data is shifted out
-
C.
Data is cleared
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D.
Data is inverted
Solution
When a shift register is reset, the data is cleared.
Correct Answer:
C
— Data is cleared
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Q. What is a characteristic of a serial-in, serial-out (SISO) shift register?
-
A.
Data is input and output in parallel
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B.
Data is input serially and output serially
-
C.
Data is input in parallel and output serially
-
D.
Data is stored permanently
Solution
A SISO shift register allows data to be input serially and output serially.
Correct Answer:
B
— Data is input serially and output serially
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Q. What is the effect of a 'shift left' operation on a binary number?
-
A.
It multiplies the number by 2
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B.
It divides the number by 2
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C.
It adds a zero to the end
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D.
It reverses the number
Solution
A 'shift left' operation on a binary number effectively multiplies the number by 2.
Correct Answer:
A
— It multiplies the number by 2
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Q. What is the effect of a left shift operation on a binary number?
-
A.
It multiplies the number by 2
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B.
It divides the number by 2
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C.
It adds 1 to the number
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D.
It subtracts 1 from the number
Solution
A left shift operation on a binary number effectively multiplies the number by 2.
Correct Answer:
A
— It multiplies the number by 2
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Q. What is the main advantage of using a parallel-in parallel-out shift register?
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A.
Faster data processing
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B.
Lower power consumption
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C.
Simpler design
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D.
Higher data capacity
Solution
The main advantage of a parallel-in parallel-out shift register is faster data processing since all bits are entered simultaneously.
Correct Answer:
A
— Faster data processing
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Q. What is the output of a shift register after shifting a binary '1011' left by 1 position?
-
A.
0110
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B.
1100
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C.
1011
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D.
10110
Solution
Shifting '1011' left by 1 position results in '10110'.
Correct Answer:
D
— 10110
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Q. What is the primary function of a shift register?
-
A.
To store data temporarily
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B.
To perform arithmetic operations
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C.
To convert analog signals to digital
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D.
To amplify signals
Solution
A shift register is primarily used to store data temporarily and shift it in or out serially.
Correct Answer:
A
— To store data temporarily
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Q. What type of shift register allows data to be shifted in both directions?
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A.
Serial-in Serial-out
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B.
Parallel-in Parallel-out
-
C.
Bidirectional Shift Register
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D.
Universal Shift Register
Solution
A Bidirectional Shift Register allows data to be shifted in both left and right directions.
Correct Answer:
C
— Bidirectional Shift Register
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Q. What type of shift register shifts data to the left?
-
A.
Right shift register
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B.
Left shift register
-
C.
Bidirectional shift register
-
D.
Universal shift register
Solution
A left shift register shifts data to the left, moving bits towards the higher order.
Correct Answer:
B
— Left shift register
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Q. Which logic gate is commonly used in the design of shift registers?
-
A.
AND gate
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B.
OR gate
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C.
NOT gate
-
D.
D flip-flop
Solution
D flip-flops are commonly used in the design of shift registers to store each bit.
Correct Answer:
D
— D flip-flop
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Q. Which of the following is a common application of shift registers?
-
A.
Data storage
-
B.
Data conversion
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C.
Data transmission
-
D.
All of the above
Solution
Shift registers are used in various applications including data storage, conversion, and transmission.
Correct Answer:
D
— All of the above
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Q. Which type of shift register can shift data in both directions?
-
A.
Left shift register
-
B.
Right shift register
-
C.
Bidirectional shift register
-
D.
Static shift register
Solution
A bidirectional shift register can shift data in both left and right directions.
Correct Answer:
C
— Bidirectional shift register
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