Virtual Labs

What is Verilog used for?

a: Creating hardware description language (HDL) models Explanation

Explanation

b: Writing web applications Explanation

Explanation

c: Developing mobile apps Explanation

Explanation

d: Designing operating systems Explanation

Explanation

What does a comparator do in digital design?

a: Compares two binary numbers and produces an output based on their relationship Explanation

Explanation

b: Generates random signals Explanation

Explanation

c: Converts analog signals to digital signals Explanation

Explanation

d: Performs arithmetic operations Explanation

Explanation

In Verilog, what keyword is used to declare a module?

a: module Explanation

Explanation

b: input Explanation

Explanation

c: wire Explanation

Explanation

d: reg Explanation

Explanation

Explain the functionality of a full-adder in digital design.

a: It adds two binary numbers and generates a sum and carry output Explanation

Explanation

b: It compares two binary numbers and provides an output Explanation

Explanation

c: It subtracts two binary numbers Explanation

Explanation

d: It performs logical AND operation on binary numbers Explanation

Explanation

What is the purpose of a testbench in Verilog simulation?

a: To verify the functionality of the design by applying stimuli and checking outputs Explanation

Explanation

b: To create visual designs for the simulation Explanation

Explanation

c: To analyze the performance of hardware components Explanation

Explanation

d: To synthesize Verilog code to hardware components Explanation

Explanation

Explain the difference between blocking and non-blocking assignments in Verilog.

a: Blocking assignments occur sequentially, while non-blocking assignments are concurrent Explanation

Explanation

b: Blocking assignments are faster than non-blocking assignments Explanation

Explanation

c: Blocking assignments only work with numbers, while non-blocking work with arrays Explanation

Explanation

d: Non-blocking assignments use '=' and blocking assignments use '<=' Explanation

Explanation

What is race condition in digital circuit design?

a: When multiple signals reach a flip-flop at different times Explanation

Explanation

b: When outputs change based on timing differences Explanation

Explanation

c: When signals arrive at gates at the same time Explanation

Explanation

d: When asynchronous signals interfere with each other Explanation

Explanation

Explain metastability in digital circuits.

a: It's a state where a flip-flop becomes locked in a particular value Explanation

Explanation

b: It's the occurrence of unpredictable outputs due to asynchronous inputs Explanation

Explanation

c: It's the settling time of the flip-flop Explanation

Explanation

d: It's the propagation delay between gates Explanation

Explanation

What is the purpose of a latch in digital circuitry?

a: To store data temporarily Explanation

Explanation

b: To perform logical operations Explanation

Explanation

c: To control clock signals Explanation

Explanation

d: To amplify input signals Explanation

Explanation

Design of Comparator using Verilog