π§ͺ CCC MOCK TEST β (SET 3)
π Instructions
- 100 Questions
- Single correct answer
- Level: Advanced + Conceptual + Tricky
π» PART 1 (1β25) β CORE COMPUTER + OS (TRICKY)
1. Which register holds the instruction currently being executed?
A. MAR
B. MDR
C. IR
D. PC
2. Which scheduling algorithm can cause starvation?
A. FCFS
B. Round Robin
C. Priority Scheduling
D. SJF
3. Which memory is closest to CPU?
A. RAM
B. Cache
C. ROM
D. Hard Disk
4. Which is NOT a function of OS?
A. Memory management
B. Process management
C. Printing photos
D. File management
5. Virtual memory is used when:
A. RAM is unlimited
B. RAM is insufficient
C. CPU is fast
D. Disk is empty
6. Which device converts digital to analog signal?
A. Router
B. Modem
C. Switch
D. Hub
7. Which is a multitasking OS?
A. MS-DOS
B. Windows
C. Basic
D. Batch OS
8. Which is NOT an input device?
A. Scanner
B. Mouse
C. Speaker
D. Keyboard
9. DMA stands for:
A. Direct Memory Access
B. Digital Memory Area
C. Data Memory Access
D. Direct Machine Access
10. Paging is related to:
A. CPU
B. Memory management
C. Printer
D. Input devices
11. Cache memory is:
A. Slowest memory
B. Fastest memory
C. External memory
D. Secondary memory
12. Which is volatile memory?
A. ROM
B. Hard disk
C. RAM
D. CD-ROM
13. Process is:
A. Program in execution
B. Hardware
C. File
D. Input device
14. Context switching is done by:
A. CPU
B. RAM
C. OS
D. Disk
15. Fragmentation is problem in:
A. CPU
B. Memory
C. Printer
D. Network
16. Boot loader is stored in:
A. RAM
B. ROM
C. Cache
D. Hard disk
17. ALU performs:
A. Logical & arithmetic operations
B. Input
C. Output
D. Storage
18. Which is secondary storage?
A. Register
B. Cache
C. HDD
D. ALU
19. Interrupt is:
A. CPU stop forever
B. Signal to CPU
C. Memory type
D. Software
20. OS kernel is:
A. User program
B. Core part of OS
C. Browser
D. Hardware
21. Time sharing OS is based on:
A. One user
B. CPU sharing
C. Only printing
D. Only storage
22. Which is NOT system software?
A. Windows
B. Linux
C. MS Word
D. UNIX
23. Multiprogramming improves:
A. Memory only
B. CPU utilization
C. Screen resolution
D. Printer speed
24. Spooling is used in:
A. CPU
B. Printer
C. RAM
D. ROM
25. Firmware is stored in:
A. RAM
B. ROM
C. Cache
D. Register
π PART 2 (26β50) β NETWORK + INTERNET + SECURITY
26. Packet switching is used in:
A. Telephone only
B. Internet
C. Printer
D. RAM
27. Topology where all devices connect to central node:
A. Ring
B. Star
C. Bus
D. Mesh
28. Which is fastest network?
A. LAN
B. WAN
C. MAN
D. PAN
29. DNS converts:
A. IP to file
B. Domain to IP
C. File to folder
D. Email to text
30. MAC address is:
A. Software ID
B. Hardware address
C. Virus
D. Browser
31. HTTPS uses:
A. Encryption
B. Compression
C. Printing
D. Storage
32. Trojan horse is:
A. Antivirus
B. Malware
C. Hardware
D. OS
33. Botnet is:
A. Network of infected computers
B. Printer network
C. Browser
D. OS type
34. SQL Injection is:
A. Hardware attack
B. Database attack
C. Network speed
D. Storage method
35. Phishing attacks steal:
A. Graphics
B. Personal data
C. CPU speed
D. Monitor
36. Encryption converts data into:
A. Plain text
B. Cipher text
C. Image
D. Audio
37. Symmetric encryption uses:
A. Two keys
B. Same key
C. No key
D. Password only
38. Firewall works on:
A. Hardware only
B. Software/Hardware
C. Printer
D. RAM
39. IP spoofing is:
A. Fake IP address
B. Real IP
C. DNS system
D. Router type
40. VPN hides:
A. CPU
B. IP address
C. RAM
D. Keyboard
41. HTTP is:
A. Stateless protocol
B. Stateful protocol
C. Hardware
D. OS
42. Cookies store:
A. Images
B. User data
C. RAM
D. OS
43. IPv6 uses:
A. 32-bit
B. 64-bit
C. 128-bit
D. 256-bit
44. Proxy server is used for:
A. Speed control
B. Filtering requests
C. Printing
D. Storage
45. Spam filters are used in:
A. CPU
B. Email
C. RAM
D. ROM
π» DATABASE + PROGRAMMING + LOGIC
51. Primary key must be:
A. Duplicate
B. Unique
C. Null
D. Large
52. Foreign key is used to:
A. Encrypt data
B. Link tables
C. Delete data
D. Print data
53. Normalization is used to:
A. Increase redundancy
B. Reduce redundancy
C. Increase size
D. Delete database
54. DBMS stands for:
A. Data Backup Management System
B. Database Management System
C. Digital Binary Memory System
D. Data Block Memory System
55. Which is NOT DBMS?
A. MySQL
B. Oracle
C. Excel
D. MongoDB
56. Algorithm must be:
A. Infinite
B. Finite
C. Random
D. Complex only
57. Flowchart uses:
A. Symbols
B. Words only
C. Numbers
D. Images only
58. Compiler error occurs at:
A. Runtime only
B. Compile time
C. Output
D. Storage
59. Interpreter processes code:
A. Whole program
B. Line by line
C. Randomly
D. After execution
60. Debugging means:
A. Writing code
B. Removing errors
C. Running program
D. Saving file
π₯οΈ MS OFFICE + ADVANCED TOOLS
61. Macro is used for:
A. Manual work
B. Automation
C. Printing
D. Storage
62. Pivot table is used in:
A. Word
B. Excel
C. PowerPoint
D. Paint
63. Conditional formatting is used for:
A. Printing
B. Highlighting data
C. Drawing
D. Coding
64. Slide sorter view is used for:
A. Editing text
B. Rearranging slides
C. Printing
D. Emailing
65. Template means:
A. Blank file
B. Pre-designed format
C. Virus
D. Software
π NETWORK + SECURITY (ADVANCED)
66. ARP stands for:
A. Address Resolution Protocol
B. Advanced Routing Protocol
C. Active Resource Path
D. Automatic Routing Program
67. MAC filtering is used for:
A. Speed
B. Security
C. Storage
D. Printing
68. SSL certificate ensures:
A. Speed
B. Secure communication
C. Storage
D. Graphics
69. Denial of Service attack means:
A. Speed increase
B. Service blocking
C. File storage
D. Login system
70. Worm is different from virus because:
A. Needs host file
B. Self replicates
C. Hardware
D. OS
71. Phishing email targets:
A. CPU
B. Users
C. Printer
D. RAM
72. Keylogger records:
A. Screen
B. Keystrokes
C. Memory
D. CPU
73. Authentication verifies:
A. Hardware
B. Identity
C. Speed
D. Storage
74. Authorization means:
A. Access permission
B. Virus removal
C. Speed control
D. Storage
75. Biometric system uses:
A. Password
B. Physical traits
C. Email
D. IP only
π° DIGITAL SYSTEMS + CLOUD
76. SaaS means:
A. Software as a Service
B. Storage as a Service
C. System as a Service
D. Security as a Service
77. IaaS means:
A. Internet as a Service
B. Infrastructure as a Service
C. Interface as a Service
D. Input as a Service
78. Cloud computing means:
A. Local storage
B. Internet-based services
C. Offline system
D. Hardware system
79. Google Docs is example of:
A. SaaS
B. IaaS
C. PaaS
D. OS
80. Virtual machine is:
A. Physical computer
B. Software computer
C. Printer
D. Browser
π§ FINAL TRICKY QUESTIONS
81. Big data refers to:
A. Small data
B. Huge datasets
C. Images
D. Hardware
82. AI stands for:
A. Auto Input
B. Artificial Intelligence
C. Advanced Internet
D. Active Interface
83. Machine learning is part of:
A. Hardware
B. AI
C. Printer
D. OS
84. Robotics combines:
A. Hardware only
B. AI + hardware
C. Software only
D. Internet only
85. IoT means:
A. Internet of Things
B. Input of Technology
C. Internet of Tools
D. Interface of Tech
86. QR code stores:
A. Images
B. Information
C. RAM
D. CPU
87. Blockchain is used in:
A. Gaming
B. Secure transactions
C. Printing
D. Editing
88. Bitcoin is:
A. Currency
B. Software
C. OS
D. Hardware
89. Cloud backup ensures:
A. Data loss
B. Data safety
C. Slow speed
D. Virus
90. Edge computing means:
A. Central server only
B. Processing near data source
C. Offline system
D. Manual system
91. GUI is better than CLI because:
A. Easy to use
B. Hard to use
C. Slow
D. Complex
92. CLI stands for:
A. Computer Language Interface
B. Command Line Interface
C. Control Line Input
D. Code Link Interface
93. Linux is:
A. Closed source
B. Open source
C. Paid only
D. Hardware
94. Windows is developed by:
A. Google
B. Microsoft
C. Apple
D. IBM
95. Android is based on:
A. Linux
B. Windows
C. MacOS
D. DOS
96. Shortcut Ctrl + A means:
A. Save
B. Select all
C. Copy
D. Paste
97. Ctrl + Y means:
A. Undo
B. Redo
C. Cut
D. Save
98. Ctrl + F is used for:
A. Find
B. Format
C. File
D. Folder
99. File extension .pdf is used for:
A. Editable file
B. Portable document
C. Image file
D. Video file
100. Main function of computer is:
A. Entertainment only
B. Data processing
C. Printing only
D. Gaming only
β CCC VERY HARD SET 3 β ANSWER KEY
π PART 1 (1β25)
1-C
2-C
3-C
4-C
5-B
6-B
7-B
8-C
9-A
10-B
11-B
12-C
13-A
14-C
15-B
16-B
17-A
18-C
19-B
20-B
21-B
22-C
23-B
24-B
25-B
π PART 2 (26β50)
26-B
27-B
28-B
29-B
30-B
31-A
32-B
33-A
34-B
35-B
36-B
37-B
38-B
39-A
40-B
41-A
42-B
43-C
44-B
45-B
46-B
47-B
48-B
49-B
50-B
π PART 3 (51β75)
51-B
52-B
53-B
54-B
55-C
56-B
57-A
58-B
59-B
60-B
61-B
62-B
63-B
64-B
65-B
66-A
67-B
68-B
69-B
70-B
71-B
72-B
73-B
74-A
75-B
π PART 4 (76β100)
76-A
77-B
78-B
79-A
80-B
81-B
82-B
83-B
84-B
85-A
86-B
87-B
88-A
89-B
90-B
91-A
92-B
93-B
94-B
95-A
96-B
97-B
98-A
99-B
100-B
π SCORE GUIDE
- 90β100 = Top Expert π
- 75β89 = Very Strong π
- 60β74 = Good π
- 50β59 = Average β οΈ
- Below 50 = Needs Practice β