Computer Science Mcqs Test No 3

21. Which register stores the result of ALU operations?

(A) Data Register

(B) Instruction Register

(C) Data Address Register

(D) Accumulator Register

22. A collection of rules for writing programs in a programming language is known as

(A) Syntax

(B) Program logic

(C) Program Standards

(D) None Of These

23. Which one connects two similar network segments?

(A) Router

(B) Bridge

(C) Gateway

(D) Node

24. Which of the following device uses the parallel transmission?

(A) Mouse

(B) Keyboard

(C) Printer

(D) Light Pen

25. What is a diagrammatic way of representing the relationship between the entities in a database?

(A) Flowchart

(B) ERD

(C) DFD

(D) Algorithm

26. Which transmission allows data to travel in both directions but only one direction at a time?

(A) Simplex

(B) Full duplex

(C) Half duplex

(D) Reverse

27. Another name for free software is?

(A) Encrypated Software

(B) Copy Protected Software

(C) Shareware

(D) Public Domain Software

28. DPI stands for?

(A) Dot Per Inch

(B) Decimal Per Inch

(C) Digit Per Inch

(D) Data Per Inch

29. A small high speed memory insidse CPU is

(A) RAM

(B) ROM

(C) Cache

(D) Register

30. ________ are used to evaluate compound conditions.

(A) Arithmetic Operators

(B) Logical Operators

(C) Relational Operators

(D) Assignment Operators

ANSWERS: COMPUTER SCIENCE MCQs

21. D

22. A

23. B

24. C

25. B

26. C

27. D

28. A

29. D

30. B