Q1. Which layer of the OSI model is responsible for data encryption?
A. Physical Layer
B. Transport Layer
C. Presentation Layer
D. Data Link Layer
Answer: C. Presentation Layer
Q2. In MS Excel, which function is used to count only numeric values?
A. COUNT
B. COUNTA
C. COUNTIF
D. SUM
Answer: A. COUNT
Q3. Which protocol is used to securely transfer web pages?
A. HTTP
B. FTP
C. HTTPS
D. SMTP
Answer: C. HTTPS
Q4. What is the binary equivalent of decimal number 10?
A. 1001
B. 1010
C. 1100
D. 1110
Answer: B. 1010
Q5. Which memory is fastest in a computer?
A. RAM
B. ROM
C. Cache Memory
D. Hard Disk
Answer: C. Cache Memory
Q6. Which command is used to check IP configuration in Windows?
A. ping
B. ipconfig
C. tracert
D. netstat
Answer: B. ipconfig
Q7. What does DNS stand for?
A. Digital Network System
B. Domain Name System
C. Data Network Service
D. Domain Network Server
Answer: B. Domain Name System
Q8. Which device connects multiple networks together?
A. Switch
B. Hub
C. Router
D. Repeater
Answer: C. Router
Q9. Which of the following is an example of system software?
A. MS Excel
B. Photoshop
C. Linux
D. Tally
Answer: C. Linux
Q10. In database terminology, a table row is called:
A. Field
B. Column
C. Record
D. Query
Answer: C. Record
Q11. Which key combination opens Task Manager in Windows?
A. Ctrl + C
B. Ctrl + Alt + Delete
C. Ctrl + Shift + N
D. Alt + F4
Answer: B. Ctrl + Alt + Delete
Q12. What is the full form of URL?
A. Uniform Resource Locator
B. Universal Resource Link
C. Uniform Reference Locator
D. Universal Reference Link
Answer: A. Uniform Resource Locator
Q13. Which topology uses a central hub?
A. Bus
B. Ring
C. Star
D. Mesh
Answer: C. Star
Q14. Which part of CPU controls all operations?
A. ALU
B. CU
C. RAM
D. Cache
Answer: B. CU (Control Unit)
Q15. Which of the following is a volatile memory?
A. ROM
B. Hard Disk
C. RAM
D. CD-ROM
Answer: C. RAM
Q16. Which file format is used for compressed files?
A. .docx
B. .jpg
C. .zip
D. .exe
Answer: C. .zip
Q17. In MS Word, which shortcut is used to select all text?
A. Ctrl + A
B. Ctrl + S
C. Ctrl + P
D. Ctrl + Z
Answer: A. Ctrl + A
Q18. Which language is directly understood by the computer?
A. High-level language
B. Assembly language
C. Machine language
D. C++
Answer: C. Machine Language
Q19. Which cyber attack involves sending fake emails?
A. Phishing
B. Hacking
C. Spamming
D. Spoofing
Answer: A. Phishing
Q20. What is the full form of LAN?
A. Local Area Network
B. Large Area Network
C. Long Area Network
D. Limited Area Network
Answer: A. Local Area Network