Digital Electronics Questions for the BCA Students

Hello, Reader. Greetings from GradGuru99.com. Here are 60 short-answer questions for the Digital Electronics paper in the BCA syllabus. This is equally helpful for BE/BTech students.

Digital Electronics Question Set (BCA/BE/BTech)

• Define digital electronics.
• What is the basic unit of digital information?
• Differentiate between analog and digital signals.
• Define a logic gate.
• Provide an example of a combinational circuit.
• What is a truth table used for?
• Explain the concept of binary coding.
• Define the term “flip-flop.”

• Differentiate between synchronous and asynchronous circuits.
• Explain the purpose of a multiplexer.
• What is the function of an encoder?
• Define the term “half-adder.”
• Explain the significance of Karnaugh maps in digital design.
• What is a decoder in digital systems?
• Provide an example of a practical application of a shift register.
• Differentiate between a latch and a flip-flop.
• Define the term “complement” in the context of digital systems.

• Explain the operation of a 4-bit binary counter.
• What is the purpose of a comparator circuit?
• Define clock skew in synchronous systems.
• Explain the concept of asynchronous inputs in flip-flops.
• Differentiate between Mealy and Moore machines.
• Define the term “state” in sequential circuits.
• Explain the working principle of a tri-state buffer.
• Provide an example of a synchronous counter.
• What is the significance of the Master-Slave configuration in flip-flops?
• Define the term “race condition.”

• Explain the operation of a 3-to-8 line decoder.
• Differentiate between positive-edge and negative-edge triggered flip-flops.
• What is the purpose of a ring counter?
• Define the term “fan-out” in digital gate design.
• Explain the concept of clock gating.
• Differentiate between a 2-input XOR gate and a 2-input XNOR gate.
• Define the term “hazard” in digital circuits.
• Explain the working principle of a BCD-to-7 segment decoder.
• What is the purpose of a carry-lookahead adder?
• Define the term “don’t care condition” in Boolean algebra.

• Explain the concept of tristate output in digital circuits.
• Differentiate between CMOS and TTL logic families.
• Define the term “setup time” in flip-flops.
• Explain the purpose of asynchronous reset in flip-flops.
• What is clock domain crossing, and why is it important?
• Define the term “Gray code.”
• Explain the concept of dynamic hazards.
• Differentiate between synchronous and asynchronous counters.
• What is the function of a 4-to-16 line decoder?
• Define the term “cascading” in digital systems.
• Explain the working principle of a priority encoder.

• Differentiate between a parallel-in/serial-out and a serial-in/parallel-out shift register.
• Define the term “overflow” in binary addition.
• Explain the purpose of a carry flag in binary arithmetic.
• What is the purpose of clock distribution in digital systems?
• Define the term “ripple carry” in binary addition.
• Explain the significance of clock domain synchronization.
• Differentiate between positive logic and negative logic.
• What is the purpose of a 3-bit Johnson counter?
• Define the term “asynchronous up-counter.”
• Explain the concept of metastability in flip-flops.
• Differentiate between static and dynamic hazards.
• What is the purpose of a 5-input multiplexer?