# DLD MCQs with Answers for Online Test Preparation

# DLD MCQs with Answers for Online Test Prepation

In this section of **Computer Science MCQs**, we will cover **DLD MCQs** with answers. As we know that Digital and Logical Design is one of the most important branches of computer science. All these Computer MCQs cover basic concepts in **DLD like Logic Gates (AND, OR, NOT, NAND, etc) Truth Tables, Addition**, and other concepts related to DLD.

All these **DLD MCQs** with answers are helpful for** online test preparation** like NTS Test, CSS, PMS Test, ETEA Test, Computer Science Lecturer Test, FPSC Test, SS Computer Science Test, PPSC Test, and computer job-related test preparation.

## Digital and Logical Design (DLD) MCQs Solved with Answers

**1: An electronic circuit that operates on one or more input signals and generates output is called_________.**

- a) Circuit
- b) Gate
- c) Witch
- d) Operand

b) Gate

**2: ___________gate is the physical realization of the logical multiplication (AND) operation.**

- a) AND
- b) NAND
- c) NOT
- d) OR

a) AND

**3: A NOT gate is also called a/an_________.**

- a) Equivalence
- b) Maxterm
- c) Product
- d) Inverter

d) Inverter

**4: A ____________ is a single variable or the sum of several variables. The variable may or may not be complemented.**

- a) Sum Term
- b) Product Term
- c) Truth Table
- d) None of these

a) Sum Term

**5: A _______gate is a complemented AND gate.**

- a) NOT
- b) NOR
- c) NAND
- d) OR

c) NAND

## DLD Online Test Preparation

**6: The switching network of a computer and logic of a program can be analyzed with the help of _________.**

- a) De Morgan’s Theorem
- b) Karnaugh Map
- c) Boolean Algebra
- d) None of these

c) Boolean Algebra

**7: __________is the product term or several products terms multiplied by AND operator.**

- a) Product Term
- b) Sum Term
- c) Minterm
- d) Maxterm

d) Maxterm

**8: In OR gate if there are three input signals i.e X=1, Y=1, Z=1 then the output signal will be equal to_____________.**

- a) 0
- b) 1
- c) 01
- d) 10

b) 1

**9: Complement is symbolically denoted by a __________.**

- a) Bar
- b) Dot
- c) Theta
- d) Power

a) Bar

**10: If there are three inputs signals X,Y,Z for AND Gate and if X=1, Y=1 and Z=0 the output signal X.Y.Z=___________.**

- a) 1
- b) 0
- c) 11
- d) 10

b) 0

excellent