Q1. Which memory directly communicates with the ALU during processing?
A. Hard Disk
B. RAM
C. Register
D. DVD
Answer: C. Register
Q2. Which protocol is used to automatically obtain an IP address from a server?
A. DNS
B. DHCP
C. SMTP
D. POP3
Answer: B. DHCP
Q3. In MS Excel, which function is used to find the lowest value?
A. MIN
B. MAX
C. LOW
D. SMALL
Answer: A. MIN
Q4. Which type of operating system allows multiple users to access the system at the same time?
A. Single-user OS
B. Batch OS
C. Multi-user OS
D. Embedded OS
Answer: C. Multi-user OS
Q5. What is the binary equivalent of decimal number 25?
A. 11001
B. 10101
C. 11100
D. 10011
Answer: A. 11001
Q6. Which of the following is an example of firmware?
A. MS Word
B. BIOS
C. Chrome
D. Photoshop
Answer: B. BIOS
Q7. Which Windows tool is used to manage startup programs?
A. Disk Cleanup
B. Task Manager
C. Device Manager
D. Control Panel
Answer: B. Task Manager
Q8. In DBMS, which key is used to create a relationship between two tables?
A. Primary Key
B. Candidate Key
C. Foreign Key
D. Super Key
Answer: C. Foreign Key
Q9. Which networking device filters traffic based on security rules?
A. Hub
B. Switch
C. Firewall
D. Repeater
Answer: C. Firewall
Q10. Which programming language is primarily used for Android app development?
A. Swift
B. Kotlin
C. PHP
D. Ruby
Answer: B. Kotlin
Q11. What does HTTPS provide in addition to HTTP?
A. Speed
B. Compression
C. Encryption
D. Backup
Answer: C. Encryption
Q12. Which type of memory retains data even after power is turned off?
A. RAM
B. Cache
C. ROM
D. Register
Answer: C. ROM
Q13. Which keyboard shortcut is used to switch between open applications in Windows?
A. Ctrl + Tab
B. Alt + Tab
C. Shift + Tab
D. Windows + Tab
Answer: B. Alt + Tab
Q14. Which topology connects every device to every other device?
A. Star
B. Bus
C. Ring
D. Mesh
Answer: D. Mesh
Q15. Which SQL command is used to change the structure of a table?
A. MODIFY
B. UPDATE
C. ALTER
D. EDIT
Answer: C. ALTER
Q16. Which of the following is an example of cloud computing service?
A. Google Drive
B. BIOS
C. SMPS
D. CPU
Answer: A. Google Drive
Q17. Which unit represents 1024 Kilobytes?
A. Megabyte
B. Gigabyte
C. Terabyte
D. Petabyte
Answer: A. Megabyte
Q18. Which protocol translates domain names into IP addresses?
A. DHCP
B. DNS
C. FTP
D. SMTP
Answer: B. DNS
Q19. Which component prevents overheating inside a CPU?
A. RAM
B. Heat Sink
C. Hard Disk
D. Monitor
Answer: B. Heat Sink
Q20. Which attack attempts all possible password combinations?
A. Phishing
B. Spoofing
C. Brute Force Attack
D. Worm
Answer: C. Brute Force Attack