1. Question 1 of 100

   MS PowerPoint is used to create

   A spreadsheets B presentations C databases D programs
2. Question 2 of 100

   Encryption is the process of

   A deleting data B converting data into a coded form to protect it C copying data D compressing images only
3. Question 3 of 100

   Ransomware is a malware that

   A speeds up the Internet B locks or encrypts files and demands payment C updates drivers D cleans memory
4. Question 4 of 100

   Normalisation in databases is done to

   A reduce redundancy and improve data integrity B increase redundancy C delete all tables D speed up the monitor
5. Question 5 of 100

   The output of an AND gate is 1 only when

   A all inputs are 1 B any input is 1 C all inputs are 0 D the inputs are different
6. Question 6 of 100

   The default port numbers for HTTP and HTTPS are

   A 80 and 443 B 21 and 22 C 25 and 110 D 53 and 67
7. Question 7 of 100

   A loop in programming is used to

   A repeat a set of instructions B stop the computer C store files D connect to the Internet
8. Question 8 of 100

   Which of the following is permanent storage?

   A Hard disk B RAM C Cache D Register
9. Question 9 of 100

   ROM is a

   A non-volatile memory that stores permanent startup instructions B volatile temporary memory C input device D output device
10. Question 10 of 100

    Which logic gate gives output 1 only when its inputs are different?

    A XOR B AND C NAND D NOR
11. Question 11 of 100

    A database is

    A a type of keyboard B an organised collection of data C a type of virus D a monitor type
12. Question 12 of 100

    A printer is used to

    A store data permanently inside the CPU B input sound C scan images D produce a hard copy of documents
13. Question 13 of 100

    Which of the following is an output device?

    A Mouse B Scanner C Keyboard D Monitor
14. Question 14 of 100

    A file with the extension .jpg is

    A a text document B a video file C a program D an image file
15. Question 15 of 100

    A cryptographic hash function such as SHA-256

    A produces output of the same length as the input B can be reversed easily C needs a secret key to decrypt D produces a fixed-length digest from any input
16. Question 16 of 100

    A compiler

    A translates and executes one line at a time B translates the whole source program into machine code before execution C is an input device D is an antivirus
17. Question 17 of 100

    Open-source software such as Linux

    A cannot be used by anyone B allows users to view and modify the source code C is always paid D has no code
18. Question 18 of 100

    The main circuit board of a computer is the

    A monitor B keyboard C motherboard D speaker
19. Question 19 of 100

    The ALU of a CPU performs

    A storage of files B printing C displaying graphics only D arithmetic and logical operations
20. Question 20 of 100

    A DDoS attack

    A steals passwords by guessing B floods a server with traffic from many sources to make it unavailable C installs antivirus D encrypts a hard disk for ransom
21. Question 21 of 100

    A flowchart is a

    A diagram showing the steps of an algorithm B type of printer C database table D network cable
22. Question 22 of 100

    The binary number 1010 is equal to the decimal number

    A 8 B 10 C 12 D 5
23. Question 23 of 100

    MS Word is a

    A spreadsheet program B presentation program C database program D word processing program
24. Question 24 of 100

    Python is an example of a

    A machine language B hardware component C high-level programming language D network protocol
25. Question 25 of 100

    URL stands for

    A Uniform Resource Locator B Universal Reading Link C Unique Router Line D United Resource List
26. Question 26 of 100

    Moore's law states that the number of transistors on a chip

    A halves every year B roughly doubles about every two years C remains constant D increases ten times each month
27. Question 27 of 100

    The brain of the computer is the

    A monitor B keyboard C CPU (Central Processing Unit) D mouse
28. Question 28 of 100

    A USB flash drive is used to

    A display images B print documents C store and carry data D cool the CPU
29. Question 29 of 100

    The hexadecimal number system has a base of

    A 8 B 16 C 10 D 2
30. Question 30 of 100

    Google is an example of a

    A search engine B operating system C programming language D hardware
31. Question 31 of 100

    A deadlock in an operating system occurs when

    A the CPU is overheated B memory is full of virus C processes wait for each other's resources indefinitely D a program ends normally
32. Question 32 of 100

    Compared with UDP, TCP is

    A connectionless and unreliable B faster but loses packets C used only for video D connection-oriented and reliable
33. Question 33 of 100

    An algorithm is

    A a type of hardware B a step-by-step procedure to solve a problem C a programming error D a type of virus
34. Question 34 of 100

    A mouse is a

    A pointing input device B output device C storage device D processing unit
35. Question 35 of 100

    The binary number 1101 is equal to decimal

    A 11 B 14 C 13 D 15
36. Question 36 of 100

    The hexadecimal number 1F is equal to decimal

    A 15 B 21 C 26 D 31
37. Question 37 of 100

    An IPv6 address is

    A 128 bits long B 32 bits long C 64 bits long D 256 bits long
38. Question 38 of 100

    The Von Neumann architecture is based on the

    A use of vacuum tubes only B absence of memory C analog computing only D stored-program concept (instructions and data in the same memory)
39. Question 39 of 100

    NAND and NOR gates are called universal gates because

    A they are the fastest gates B any logic circuit can be built using only one of them C they use no power D they have no inputs
40. Question 40 of 100

    The basic logic gates are

    A PLUS, MINUS and TIMES B IF, FOR and WHILE C AND, OR and NOT D HTTP, FTP and SMTP
41. Question 41 of 100

    A firewall

    A stores files B prints pages C plays music D monitors and filters network traffic
42. Question 42 of 100

    A router is used to

    A store emails B connect different networks and direct data packets C print documents D cool the CPU
43. Question 43 of 100

    A GUI (Graphical User Interface)

    A uses only text commands B uses icons and windows to interact with the computer C is a hardware part D is a virus
44. Question 44 of 100

    The shortcut key to copy selected text is

    A Ctrl + V B Ctrl + C C Ctrl + X D Ctrl + Z
45. Question 45 of 100

    A primary key in a database

    A can be duplicated B stores images only C is the same as a column name D uniquely identifies each record in a table
46. Question 46 of 100

    The Internet of Things (IoT) refers to

    A only mobile phones B only supercomputers C everyday devices connected to the Internet to exchange data D a single large network cable
47. Question 47 of 100

    A foreign key is

    A a duplicate primary key B a type of password C a field that refers to the primary key of another table D a type of query
48. Question 48 of 100

    RAM is a type of

    A permanent memory B optical disc C input device D volatile memory
49. Question 49 of 100

    The sum of the binary numbers 1011 and 0101 is

    A 1111 B 10010 C 10000 D 1101
50. Question 50 of 100

    A folder in a computer is used to

    A produce sound B connect to Wi-Fi C organise files D clean the screen
51. Question 51 of 100

    A LAN is a

    A network covering the whole world B network of satellites only C local area network covering a small area like a building D type of printer
52. Question 52 of 100

    In cloud computing, SaaS stands for

    A Software as a Service B System as a Server C Storage and Security D Software as a Server
53. Question 53 of 100

    SQL injection is an attack that

    A inserts malicious SQL code through input fields B floods the network C replaces the keyboard D changes the monitor resolution
54. Question 54 of 100

    One byte is equal to

    A 4 bits B 2 bits C 8 bits D 16 bits
55. Question 55 of 100

    Which of the following is an input device?

    A Monitor B Keyboard C Printer D Speaker
56. Question 56 of 100

    Windows, Linux and macOS are examples of

    A antivirus programs B web browsers C operating systems D programming languages
57. Question 57 of 100

    SQL is a language used to

    A draw pictures B design hardware C manage and query databases D browse the web
58. Question 58 of 100

    Phishing is an attempt to

    A speed up the computer B trick users into revealing sensitive information C clean the disk D update software
59. Question 59 of 100

    The decimal number 5 in binary is

    A 110 B 111 C 101 D 100
60. Question 60 of 100

    Second-generation computers used

    A vacuum tubes B integrated circuits C VLSI D transistors
61. Question 61 of 100

    A stack follows the principle of

    A FIFO B LIFO (last in, first out) C random access only D sorted order only
62. Question 62 of 100

    HTTPS differs from HTTP in that it

    A encrypts the data using SSL/TLS B is slower than a dial-up C has no address D is only for emails
63. Question 63 of 100

    The father of the computer is

    A Bill Gates B Alan Turing C Steve Jobs D Charles Babbage
64. Question 64 of 100

    ASCII is a

    A programming language B character encoding standard C operating system D virus
65. Question 65 of 100

    Computers store data in the form of

    A letters only B binary digits (0 and 1) C decimal digits only D pictures only
66. Question 66 of 100

    Which of the following is a web browser?

    A Google Chrome B Microsoft Word C Windows D Photoshop
67. Question 67 of 100

    The Internet is a

    A single computer B type of software C TV channel D worldwide network of networks
68. Question 68 of 100

    The physical parts of a computer are called

    A software B firmware only C malware D hardware
69. Question 69 of 100

    A hash table is used to

    A store images only B print documents C store key–value pairs for fast lookup D sort data using bubble sort only
70. Question 70 of 100

    Antivirus software is used to

    A increase RAM B print documents C protect a computer from malicious software D connect to the Internet
71. Question 71 of 100

    Machine language consists of

    A English words B HTML tags C binary instructions (0s and 1s) D emoji
72. Question 72 of 100

    Email stands for

    A easy mail B electronic mail C emergency mail D extra mail
73. Question 73 of 100

    The decimal number 255 in hexadecimal is

    A EE B F0 C FF D 1F
74. Question 74 of 100

    In symmetric encryption,

    A the same key is used for encryption and decryption B two different keys are used C no key is used D the key is public
75. Question 75 of 100

    In a database table, a row is called a

    A field B record C key only D query
76. Question 76 of 100

    The 2's complement of the 4-bit binary number 0101 is

    A 1011 B 1010 C 0101 D 1111
77. Question 77 of 100

    Android is an operating system for

    A smartphones and tablets B only desktop computers C only printers D only televisions
78. Question 78 of 100

    Google Drive is an example of

    A an antivirus B a programming language C a monitor D cloud storage
79. Question 79 of 100

    The time complexity of binary search on a sorted list of n items is

    A O(n) B O(log n) C O(n²) D O(1)
80. Question 80 of 100

    The OSI reference model has

    A 5 layers B 4 layers C 9 layers D 7 layers
81. Question 81 of 100

    Wi-Fi is a technology for

    A printing B typing C drawing D wireless networking
82. Question 82 of 100

    A variable in programming is

    A a type of loop B a network cable C a virus D a named location used to store data
83. Question 83 of 100

    1 kilobyte (KB) is equal to

    A 100 bytes B 1,024 bytes C 1,000 bits D 8 bytes
84. Question 84 of 100

    Two-factor authentication improves security by requiring

    A two passwords of the same type B two monitors C two Internet connections D two different kinds of proof of identity
85. Question 85 of 100

    The World Wide Web (WWW) was invented by

    A Tim Berners-Lee B Bill Gates C Mark Zuckerberg D Larry Page
86. Question 86 of 100

    A computer virus is a

    A useful program B hardware part C type of monitor D malicious program that can harm files and spread
87. Question 87 of 100

    The ACID properties in databases stand for

    A Access, Control, Integrity and Data B Algorithm, Code, Input and Data C Atomicity, Consistency, Isolation and Durability D Atomic, Central, Indexed and Direct
88. Question 88 of 100

    HTML stands for

    A High Text Machine Language B HyperTool Making Language C Home Tool Markup Language D HyperText Markup Language
89. Question 89 of 100

    The worst-case time complexity of bubble sort is

    A O(log n) B O(n) C O(n²) D O(1)
90. Question 90 of 100

    In public-key (asymmetric) cryptography, a message encrypted with the receiver's public key can be decrypted only with

    A the sender's public key B any public key C no key D the receiver's private key
91. Question 91 of 100

    A queue follows the principle of

    A FIFO (first in, first out) B LIFO C random order D priority only
92. Question 92 of 100

    First-generation computers used

    A vacuum tubes B transistors C integrated circuits D microprocessors
93. Question 93 of 100

    A strong password should

    A be your name only B be 1234 C contain a mix of letters, numbers and symbols D be shared with friends
94. Question 94 of 100

    MS Excel is mainly used for

    A writing letters B drawing only C spreadsheets and calculations D playing videos
95. Question 95 of 100

    DNS translates

    A IP addresses into voices B files into folders C domain names into IP addresses D text into images
96. Question 96 of 100

    A recursive function is one that

    A calls itself B never ends C calls no function D runs only once
97. Question 97 of 100

    Cache memory is

    A a small, very fast memory between the CPU and RAM B a large slow disk C a type of printer D a type of display
98. Question 98 of 100

    Which of the following is NOT a function of an operating system?

    A Memory management B Designing hardware chips C File management D Process management
99. Question 99 of 100

    Machine learning is a branch of artificial intelligence in which

    A humans write every rule B computers are switched off C data is deleted D systems learn patterns from data to make predictions
100. Question 100 of 100

     An IP address is used to

     A identify a device on a network B store files C clean viruses D print pages

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