Digital Logic Design MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
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What is the role of a ‘decoder’ in digital logic?
A. Converts binary input to a specific output format
B. Stores binary data
C. Performs arithmetic operations
D. Amplifies signals
Answer: Converts binary input to a specific output format
What does a ‘buffer’ do in digital logic?
A. Isolates and amplifies signals
B. Performs logical operations
C. Stores binary data
D. Converts analog signals to digital
Answer: Isolates and amplifies signals
What is a ‘binary multiplier’ used for?
A. To perform multiplication of binary numbers
B. To store binary data
C. To convert digital signals to analog
D. To amplify signals
Answer: To perform multiplication of binary numbers
What does an ‘edge-triggered flip-flop’ do?
A. Changes state on the rising or falling edge of a clock signal
B. Stores binary data continuously
C. Converts digital signals to analog
D. Performs logical operations
Answer: Changes state on the rising or falling edge of a clock signal
What does a ‘J-K flip-flop’ do?
A. Stores binary data and toggles between states based on J and K inputs
B. Amplifies signals
C. Converts digital signals to analog
D. Performs addition and subtraction operations
Answer: Stores binary data and toggles between states based on J and K inputs
What is the function of an ‘SR latch’?
A. To store a binary value based on Set and Reset inputs
B. To perform arithmetic operations
C. To convert analog signals to digital
D. To amplify signals
Answer: To store a binary value based on Set and Reset inputs
What is the role of a ‘flip-flop’ in digital circuits?
A. To store a single bit of binary data
B. To convert analog signals to digital
C. To perform arithmetic operations
D. To amplify signals
Answer: To store a single bit of binary data
What is a ‘shift register’ used for?
A. To shift data bits left or right in a sequence
B. To convert analog signals to digital
C. To store binary data
D. To perform logical operations
Answer: To shift data bits left or right in a sequence
What is a ‘multiplexer’ (MUX) used for?
A. To select one of many inputs and forward it to a single output
B. To amplify digital signals
C. To convert analog signals to digital
D. To store binary data
Answer: To select one of many inputs and forward it to a single output