Competitive Exams : Computer Awareness - Mix (Set 1) | Concept of Maths

Question 1

1. Which component of the CPU is responsible for performing mathematical calculations like addition and logic operations?

A) ALU (Arithmetic Logic Unit)

B) CU (Control Unit)

C) Registers

D) RAM

Answer

Correct Answer: A

The ALU performs all arithmetic ($+, -, \times, \div$) and logical comparisons ($<, >, =$).

Question 2

2. Where is the BIOS (Basic Input/Output System) permanently stored?

A) Hard Disk

B) ROM Chip

C) RAM

D) Cache

Answer

Correct Answer: B

BIOS is firmware stored on a Non-Volatile $ROM$ (Read-Only Memory) chip on the motherboard.

Question 3

3. Which type of memory acts as a high-speed buffer between the CPU and the Main Memory?

A) Secondary Memory

B) Virtual Memory

C) Cache Memory

D) Optical Disk

Answer

Correct Answer: C

Question 4

4. What is the full form of CPU?

A) Central Processing Unit

B) Control Process Unit

C) Common Power Unit

D) Computer Primary Unit

Answer

Correct Answer: A

Question 5

5. A 32-bit system can address up to how much RAM?

A) $2 \text{ GB}$

B) $8 \text{ GB}$

C) $16 \text{ GB}$

D) $4 \text{ GB}$

Answer

Correct Answer: D

Calculation: $2^{32} \text{ bytes} = 4,294,967,296 \text{ bytes} \approx 4 \text{ GB}$.

Question 6

6. Which of the following is an Operating System?

A) MS Word

B) Windows 11

C) Google Chrome

D) Adobe Reader

Answer

Correct Answer: B

Question 7

7. Which of these is an input device?

A) Monitor

B) Printer

C) Scanner

D) Speaker

Answer

Correct Answer: C

Question 8

8. How many bits are there in $1 \text{ Byte}$?

A) $8$

B) $4$

C) $1024$

D) $16$

Answer

Correct Answer: A

By definition, $1 \text{ Byte} = 8 \text{ bits}$. Also, $1 \text{ Nibble} = 4 \text{ bits}$.

Question 9

9. Which software is used to protect a computer from viruses?

A) Compiler

B) Device Driver

C) Browser

D) Antivirus

Answer

Correct Answer: D

Question 10

10. Physical components of a computer are called:

A) Software

B) Hardware

C) Firmware

D) Malware

Answer

Correct Answer: B

Question 11

11. What is the default file extension for MS Word 2019?

A) .docx

B) .txt

C) .xlsx

D) .pptx

Answer

Correct Answer: A

Question 12

12. In MS Excel, every formula must begin with which symbol?

A) $+$

B) $@$

C) $=$

D) $\#$

Answer

Correct Answer: C

Example: $= \text{SUM}(A1:A5)$. The "$=$$ tells Excel to treat the cell contents as a calculation.

Question 13

13. Which shortcut key is used to start a PowerPoint slideshow from the first slide?

A) F2

B) F5

C) Ctrl + S

D) Shift + F5

Answer

Correct Answer: B

$F5$ starts the presentation from Slide 1. $\text{Shift} + F5$ starts it from the current slide.

Question 14

14. In MS Access, a unique field that identifies each record in a table is called a:

A) Primary Key

B) Foreign Key

C) Query

D) Report

Answer

Correct Answer: A

Question 15

15. What is the intersection of a row and a column in MS Excel called?

A) Grid

B) Box

C) Worksheet

D) Cell

Answer

Correct Answer: D

A Cell is the basic unit of an Excel sheet, named by Column Letter and Row Number (e.g., $B10$).

Question 16

16. Which feature in MS Word allows you to send the same letter to multiple recipients?

A) Macros

B) Mail Merge

C) Cross-reference

D) Thesaurus

Answer

Correct Answer: B

Question 17

17. Which MS Office tool is best suited for creating professional presentations?

A) Word

B) Excel

C) PowerPoint

D) Outlook

Answer

Correct Answer: C

Question 18

18. Portrait and Landscape are types of:

A) Page Orientation

B) Paper Size

C) Page Margin

D) Font Style

Answer

Correct Answer: A

Orientation refers to whether the document is vertical (Portrait) or horizontal (Landscape).

Question 19

19. Which function in Excel is used to add all numbers in a range?

A) ADD()

B) SUM()

C) TOTAL()

D) COUNT()

Answer

Correct Answer: B

Question 20

20. What is the shortcut key for 'Undo' in MS Office?

A) Ctrl + Y

B) Ctrl + X

C) Ctrl + Z

D) Ctrl + U

Answer

Correct Answer: C

Competitive Exams : Computer Awareness - Mix (Set 1) | Concept of Maths