HAT Subject (Computer Science) FLP 3 Free Quiz

HAT Subject (Computer Science) – FLP 3

120:00

Answered: 0 / 100

Remaining: 100

Comput

HAT Subject (Computer Science) – FLP 3 consists of 100 MCQs covering 1 subjects. You have 120 minutes to complete it. Start with the easier questions and manage your time wisely. Good luck!

Computer Science 100 MCQs

1. What does greedy best-first search use?

A. Uses g(n) + h(n) B. Uses only g(n) C. Uses only h(n) D. Uses random evaluation

2. What is an admissible heuristic?

A. Always overestimates B. Always underestimates C. Estimates exactly D. Never overestimates

3. How does reinforcement learning learn?

A. By supervised learning B. By unsupervised learning C. By imitating humans D. By interacting and receiving rewards

4. What do activation functions introduce?

A. Linearity B. Convergence C. Regularization D. Non-linearity

5. What does code optimization do?

A. Increases code size B. Improves efficiency C. Generates errors D. Removes comments

6. What is a formal way to define semantics in a grammar?

A. EBNF B. CNF C. BNF D. Attribute grammar

7. What is an interpreter?

A. Translates to machine code B. Compiles to bytecode C. Executes directly D. Converts to assembly

8. What is operator precedence parsing?

A. Top-down parsing B. Recursive descent C. Operator precedence parsing D. LL parsing

9. What is LALR parser a simplified version of?

A. Canonical LR B. LALR C. SLR D. LR(0)

10. What determines which variables are live at each program point?

A. Liveness analysis B. Dead code elimination C. Constant propagation D. Loop unrolling

11. Which table is used in LL(1) parsing?

A. LR(1) parsing B. LALR parsing C. SLR parsing D. LL(1) parsing table

12. What algorithm parses expressions efficiently?

A. Recursive descent B. LR parsing C. LL parsing D. Precedence climbing

13. What does a type system define?

A. Defines type usage and checking B. Defines syntax C. Defines semantics D. Defines optimization

14. What type of elements does an array have?

A. Different types B. Single element C. Same type D. No types

15. What is tail recursion?

A. Cannot be optimized B. Can be optimized C. Is inefficient D. Is not recursive

16. What are first-class functions?

A. Assigned to variables B. Not assignable C. Only passed as arguments D. Only returned

17. What does a polymorphic function do?

A. Same type B. No types C. Different types D. Only integers

18. What is a type class in Haskell?

A. Java interface B. C++ class C. Haskell type class D. Python class

19. What is a process?

A. Program in memory B. Thread C. Program in execution D. Task

20. What is a semaphore?

A. Synchronization primitive B. Data structure C. Thread D. Process

21. What is used in the producer-consumer problem?

A. Bounded buffer B. Unbounded buffer C. Stack D. Queue

22. What occurs when allocated memory is not released?

A. Memory allocation B. Memory deallocation C. Memory compaction D. Memory leak

23. What is stepping in debugging?

A. Runs all code B. Skips code C. Executes line by line D. Jumps to end

24. What does a lexer generator do?

A. Regular expressions to code B. Grammar to code C. Context-free grammar to code D. Machine code to source

25. What does a parser generator do?

A. Regular expressions to code B. Lexical rules to code C. Grammar to code D. Machine code to source

26. What does CPython use?

A. Bytecode interpreter B. Machine code interpreter C. Source code interpreter D. Assembly interpreter

27. What is LR parsing?

A. Top-down parsing B. Bottom-up parsing C. Recursive descent D. LL parsing

28. What notation is used to describe programming language grammar?

A. EBNF B. CNF C. GNF D. BNF

29. What shading interpolates vertex colors?

A. Flat shading B. Phong shading C. Gouraud shading D. None

30. What is a shader?

A. CPU B. RAM C. SSD D. GPU program

31. What do vertex shaders process?

A. Pixel B. Vertex C. Geometry D. Compute

32. What projection simulates depth?

A. Orthographic B. Perspective C. Isometric D. Parallel

33. How many layers are in the OSI model?

A. 5 B. 7 C. 6 D. 4

34. What is the brain of the computer?

A. Memory B. Storage C. Input device D. CPU

35. What does the control unit do?

A. Performs arithmetic operations B. Fetches and decodes instructions C. Stores data D. Manages I/O

36. What is a bus in computer architecture?

A. A cable B. A connector C. A communication system for data transfer D. A power supply

37. What is the stack in computer architecture?

A. Heap memory B. Cache memory C. Register file D. Stack memory

38. What is data science?

A. Extract insights from data B. Only statistics C. Only programming D. Only visualization

39. What is the median?

A. Median B. Mean C. Mode D. Standard deviation

40. What is storytelling with data?

A. Only numbers B. Only charts C. Narratives and visuals D. Only tables

41. What is a tree data structure?

A. Linear data structure B. Circular data structure C. Hierarchical data structure D. Random data structure

42. What is the order of post-order traversal in a binary tree?

A. Left, root, right B. Root, left, right C. Root, right, left D. Left, right, root

43. What is an undirected graph?

A. Edges with direction B. No edges C. Edges without direction D. Only vertices

44. What is a DBMS?

A. A database B. A query language C. Software that manages a database D. A table

45. What is a primary key?

A. Uniquely identifies each record B. Links tables C. Is a foreign key D. Is a composite key

46. What is normalization?

A. Adding redundancy B. Deleting data C. Creating backups D. Organizing data to reduce redundancy

47. What is a transaction in a database?

A. A single operation B. A query C. A backup D. A sequence of operations as a single unit

48. What gate outputs 1 only when all inputs are 1?

A. OR B. AND C. NOT D. NAND

49. What converts multiple inputs to binary?

A. Decoder B. Encoder C. MUX D. DEMUX

50. Which flip-flop has set and reset inputs?

A. JK B. SR C. D D. T

51. What is a collection of distinct objects?

A. Sequence B. Tuple C. Set D. Multiset

52. What quantifier means "there exists"?

A. Universal (∀) B. For all C. Existential (∃) D. Unique

53. What proof assumes the opposite?

A. Induction B. Contradiction C. Direct D. Construction

54. What is an ordered arrangement?

A. Combination B. Repetition C. Permutation D. Selection

55. What is a selection without order?

A. Permutation B. Arrangement C. Order D. Combination

56. What does integrity ensure?

A. Confidentiality B. Availability C. Authenticity D. Integrity

57. What does availability ensure?

A. Confidentiality B. Availability C. Integrity D. Authenticity

58. What type of encryption uses one key?

A. Asymmetric B. Symmetric C. Public-key D. Hash

59. What uses public-private key pair?

A. Asymmetric B. Symmetric C. Hash D. Stream

60. What provides secure communication over the internet?

A. Proxy B. Firewall C. VPN D. IDS

61. What is machine learning?

A. A subset of AI that learns from data B. Data processing C. Automation D. Rule-based systems

62. What is overfitting?

A. Training well, test poorly B. Training poorly, test well C. Both D. Neither

63. What is a high-bias model?

A. Simple and may underfit B. Complex and may overfit C. Complex and underfit D. Simple and overfit

64. What is SGD?

A. Batch B. Stochastic (one sample) C. Mini-batch D. All samples

65. What does a confusion matrix evaluate?

A. Regression B. Clustering C. Reinforcement D. Classification evaluation

66. What is F1-score?

A. Accuracy B. Precision C. F1-score D. Recall

67. What does the ROC curve plot?

A. Precision-recall curve B. Accuracy curve C. ROC curve D. F1 curve

68. What is a superclass?

A. A class from which other classes inherit B. A class that inherits from another class C. A class with no objects D. A class with private methods

69. What is multiple inheritance?

A. Inheritance from more than one class B. Inheritance from one class C. Creating multiple objects D. Overloading multiple methods

70. What is an abstract class?

A. A class with no methods B. A class with only concrete methods C. A class with private methods D. A class that cannot be instantiated

71. What does the "this" keyword refer to?

A. Refers to the current instance B. Refers to the superclass C. Refers to the subclass D. Refers to a static method

72. What does a static method belong to?

A. Belongs to an instance B. Belongs to the subclass C. Belongs to the superclass D. Belongs to the class

73. What is the new keyword used for?

A. To delete an object B. To create an object C. To call a method D. To define a class

74. What is the kernel in an operating system?

A. A user interface B. A file manager C. The core component of OS D. A device driver

75. What is paging in memory management?

A. Divides memory into variable blocks B. Divides memory into segments C. Divides memory into frames D. Divides memory into fixed-size pages

76. What does a file system do?

A. Manages storage of data B. Manages memory C. Manages CPU D. Manages network

77. What is the producer-consumer problem?

A. Memory management B. CPU scheduling C. Producer-consumer synchronization D. File management

78. What is a distributed operating system?

A. Manages a network as a single system B. Manages a single computer C. Manages only files D. Manages only memory

79. What is a real-time operating system (RTOS) used for?

A. For general purpose computing B. For batch processing C. For applications with strict time constraints D. For network servers

80. What does exec() do?

A. Creates a new process B. Terminates a process C. Replaces current process with a new program D. Waits for a process

81. What events cannot occur together?

A. Independent B. Dependent C. Mutually exclusive D. Disjoint

82. What events do not affect each other?

A. Mutually exclusive B. Dependent C. Correlated D. Independent

83. What is the difference between max and min?

A. Mean B. Median C. Mode D. Range

84. What does the while loop do?

A. Repeats a fixed number of times B. Repeats once C. Executes only if condition is false D. Repeats while condition is true

85. What is an array?

A. A collection of different data types B. A collection of same data type in contiguous memory C. A function D. A variable

86. What is a function in programming?

A. A data structure B. A variable C. A block of reusable code D. A loop

87. What is recursion?

A. A function calling another function B. A function calling itself C. A loop within a loop D. An iterative process

88. Which function is used for output in C programming?

A. printf() B. scanf() C. cout D. System.out.println()

89. What is the waterfall model?

A. Iterative process B. Incremental process C. Spiral process D. Sequential, linear process

90. What are use cases used for?

A. Non-functional requirements B. Design requirements C. Functional requirements D. Test requirements

91. What is debugging?

A. Writing code B. Testing code C. Finding and fixing defects D. Designing code

92. What is a repository?

A. A backup file B. A storage location for code and history C. A branch D. A commit

93. What is the spiral model?

A. Sequential model B. Iterative and risk-driven model C. Incremental model D. Waterfall model

94. What is the role of the product owner in Scrum?

A. Manages the team B. Writes code C. Maximizes product value D. Tests the product

95. What does a PDA recognize?

A. Regular languages B. Context-free languages C. Context-sensitive languages D. All languages

96. How many levels are in the Chomsky hierarchy?

A. Three levels B. Four levels C. Five levels D. Two levels

97. What characterizes a recursively enumerable language?

A. Always halts B. Never halts C. May not halt for non-strings D. Halts for all strings

98. What is Webpack?

A. Server B. Database C. Framework D. Module bundler

99. What is MVC?

A. Only model B. MVC C. Only view D. Only controller

100. What is GraphQL?

A. SQL B. GraphQL C. NoSQL D. XML

Home Quick Quizzes Medical Colleges

Full Length Papers Free Quiz

For Daily Updates Follow Us

Country Wise Scholarships

🇵🇰 Pakistan's Scholarships 🇺🇸 USA's Scholarships 🇬🇧 UK's Scholarships 🇨🇦 Canada's Scholarships 🇨🇳 China's Scholarships 🇸🇦 Saudi Arabia's Scholarships 🇦🇪 UAE's Scholarships 🇲🇾 Malaysia's Scholarships 🇪🇺 Europe's Scholarships 🇰🇷 South Korea's Scholarships

MBBS BDS in China

"Past Paper and Practice Test Free Quiz"

Entry Tests Preparation

Free Online Quiz

Cadet Colleges Test

Online Practice English Gen Knowledge General Science Intelligence Mathematics

ECAT

Practice Test Chemistry Computer Science English Maths Physics

ECAT FLP 1 ECAT FLP 2

FAST

Entry Test Advanced Maths Analytical Skills Basic Maths English

FAST FLP 1 FAST FLP 2

GIKI

Practice Test English Maths Physics

GIKI FLP 1 GIKI FLP 2

HAT General

HEC Aptitude Test Analytical Reasoning Quantitative Reasoning Verbal Reasoning English

HAT General FLP 1 HAT General FLP 2

HAT Subject

HEC Aptitude Test Agriculture Biotechnology Business Administration Chemical Engineering Chemistry

HAT Subject FLP 1 HAT Subject FLP 2

HEC ETC

USAT A Entry Test USAT COM Entry Test USAT CS Entry Test USAT E Entry Test USAT GS Entry Test USAT M Entry Test

HEC ETC FLP 1 HEC ETC FLP 2

HEC LAT

Practice Test English General Knowledge Islamiat Pak Studies Urdu

HEC LAT FLP 1 HEC LAT FLP 2

IELTS

Practice Test Grammar Reading Vocabulary

IELTS FLP 1 IELTS FLP 2

Intelligence Test

AFNS ISSB PAF Pak Army Age Problem Blood Relations

ISSB Initial Tests

Academic Test Intelligence Test Chemistry English Physics Verbal

ISSB Initial Tests FLP 1 ISSB Initial Tests FLP 2

Join PAF

Academic Test Intelligence Test English Maths Physics Verbal

Join PAF FLP 1 Join PAF FLP 2

KMU CAT

Entry Test Biology Chemistry English Physics

MDCAT

BUMHS Past Papers DUHS Past Papers ETEA Past Papers IBA Past Papers NMDCAT Past Papers NUMS Past Papers PMC Past Papers Practice Test SZABMU Past Papers UHS Past Papers

MDCAT FLP 1 MDCAT FLP 2

NCAT

Practice Test Biology Chemistry English Logical Reasoning Physics

NCAT FLP 1 NCAT FLP 2

NTS

NAT IA Test NAT ICOM Test NAT ICS Test NAT IE Test NAT IGS Test NAT IM Test

NTS FLP 1 NTS FLP 2

NTS GAT General

Aptitude Test Analytical Reasoning Quantitative Reasoning Verbal Reasoning English

NTS GAT General FLP 1 NTS GAT General FLP 2

NTS GAT Subject

Aptitude Test Agriculture Biotechnology Business Administration Chemical Engineering Chemistry

NTS GAT Subject FLP 1 NTS GAT Subject FLP 2

NUST NET

Practice Test English Maths Physics

NUST NET FLP 1 NUST NET FLP 2

OET

Practice Test Grammar Reading Vocabulary

OET FLP 1 OET FLP 2

PU AHS

Entry Test English General Knowledge Islamiat Pak Studies Quantitative Reasoning

PU COM

Entry Test Accounting Commerce Economics English Quantitative Reasoning

PU CSS

Entry Test Computer Science English Maths Physics Quantitative Reasoning

PU E

Entry Test Chemistry English Logical and Analytical Thinking Maths Physics

PU GS

Entry Test English General Science Quantitative Reasoning

PU M

Entry Test Biology Chemistry English Physics Quantitative Reasoning

SZABMU AHS

Entry Test Biology Chemistry English Islamic Studies Pakistan Studies

View All Tests →

Facebook YouTube WhatsApp Instagram

Stay updated with latest news & updates

Aggregate Calculator

Calculate your MDCAT aggregate for MBBS admissions

Calculate Now →