Q1. Which component is responsible for interpreting and executing program instructions?
A. Hard Disk
B. Control Unit
C. Monitor
D. BIOS
Answer: B. Control Unit
Q2. Which protocol is used to transfer files over the Internet?
A. SMTP
B. FTP
C. SNMP
D. ARP
Answer: B. FTP
Q3. In MS Excel, which function is used to calculate the average?
A. SUM
B. COUNT
C. AVERAGE
D. MAX
Answer: C. AVERAGE
Q4. Which network device works at the Physical Layer of OSI model?
A. Router
B. Switch
C. Hub
D. Firewall
Answer: C. Hub
Q5. What is the hexadecimal equivalent of decimal number 255?
A. EE
B. FF
C. AA
D. 99
Answer: B. FF
Q6. Which of the following is an example of an open-source database?
A. Oracle
B. MS SQL Server
C. MySQL
D. IBM DB2
Answer: C. MySQL
Q7. Which key is used to open the Start Menu in Windows?
A. Ctrl
B. Alt
C. Windows Key
D. Shift
Answer: C. Windows Key
Q8. Which memory is used to store frequently accessed data to improve speed?
A. Virtual Memory
B. Secondary Memory
C. Cache Memory
D. Optical Disk
Answer: C. Cache Memory
Q9. Which addressing scheme is used in IPv6?
A. 32-bit
B. 64-bit
C. 128-bit
D. 256-bit
Answer: C. 128-bit
Q10. Which of the following is not a type of network topology?
A. Star
B. Ring
C. Tree
D. Linear Programming
Answer: D. Linear Programming
Q11. Which shortcut key is used to undo an action in MS Word?
A. Ctrl + Y
B. Ctrl + U
C. Ctrl + Z
D. Ctrl + R
Answer: C. Ctrl + Z
Q12. What is the full form of HTTP?
A. Hyper Text Transfer Protocol
B. High Text Transfer Protocol
C. Hyper Transfer Text Program
D. Hyperlink Transfer Protocol
Answer: A. Hyper Text Transfer Protocol
Q13. Which command is used in Windows to view the DNS cache?
A. ipconfig /flushdns
B. ipconfig /displaydns
C. netstat
D. tracert
Answer: B. ipconfig /displaydns
Q14. Which type of software translates high-level language into machine code?
A. Compiler
B. Antivirus
C. Debugger
D. Browser
Answer: A. Compiler
Q15. Which storage device uses laser technology?
A. Hard Disk
B. SSD
C. CD/DVD
D. Pen Drive
Answer: C. CD/DVD
Q16. Which term refers to the smallest unit of data in a computer?
A. Byte
B. Bit
C. Nibble
D. Word
Answer: B. Bit
Q17. Which protocol assigns IP addresses automatically?
A. DNS
B. DHCP
C. FTP
D. SMTP
Answer: B. DHCP
Q18. Which of the following is an example of multitasking operating system?
A. MS-DOS
B. Windows 10
C. CP/M
D. BIOS
Answer: B. Windows 10
Q19. In database terminology, a column is also known as:
A. Record
B. Field
C. Tuple
D. Query
Answer: B. Field
Q20. Which device is used to convert AC power to DC power in a computer?
A. UPS
B. SMPS
C. Router
D. Modem
Answer: B. SMPS