NTS GAT Subject (Computer Science) FLP 1 Free Quiz

NTS GAT Subject (Computer Science) – FLP 1

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NTS GAT Subject (Computer Science) – FLP 1 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 are the three basic control structures in programming?

A. Sequence, sorting, searching B. Sequence, selection, recursion C. Sequence, selection, iteration D. Selection, iteration, recursion

2. What is the main function in programming?

A. A data type B. A loop C. The entry point of a program D. A variable declaration

3. What is the if statement used for in programming?

A. A loop B. A variable C. A conditional statement D. A function

4. 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

5. Which function is used for input in C programming?

A. printf() B. cout C. cin D. scanf()

6. What is a comment in programming?

A. Executable code B. Ignored text for documentation C. A variable D. A function

7. What is the ternary operator?

A. A type of loop B. A data structure C. A shorthand for if-else D. A function

8. What is source code?

A. Human-readable code B. Machine-readable code C. Object code D. Bytecode

9. What is exception handling?

A. A data structure B. A mechanism to handle runtime errors C. A loop D. A variable

10. When is a constructor called?

A. Called when object is destroyed B. Called when object is created C. Called when method is invoked D. Called when class is defined

11. What is an array?

A. A linked list B. A tree C. A contiguous memory block of same data type D. A graph

12. What principle does a stack follow?

A. FIFO (First-In-First-Out) B. Random Access C. First-In-First-Out D. LIFO (Last-In-First-Out)

13. What does the pop operation do in a stack?

A. Adds element to top B. Adds element to bottom C. Removes element from top D. Removes element from bottom

14. What is a linked list?

A. Contiguous memory block B. Fixed size C. Random access D. Nodes with data and reference to next

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

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

16. What is a priority queue?

A. FIFO based queue B. LIFO based stack C. Random queue D. Elements served by priority

17. What is the time complexity of accessing an element in an array by index?

A. O(n) B. O(log n) C. O(1) D. O(n^2)

18. What does space complexity measure?

A. Time taken B. Steps in algorithm C. Lines of code D. Memory used

19. What does Floyd-Warshall algorithm find?

A. Finds shortest path between two nodes B. Finds longest path C. Finds any path D. Finds shortest paths between all pairs

20. Which SQL statement is used to query data?

A. INSERT B. UPDATE C. DELETE D. SELECT

21. What does the JOIN clause do in SQL?

A. Deletes rows B. Combines rows from tables C. Adds new rows D. Sorts rows

22. What does the COUNT aggregate function do?

A. Returns sum of values B. Returns number of rows C. Returns average D. Returns maximum

23. What is a database schema?

A. The data itself B. The software C. The structure defining data organization D. The users

24. What is an operating system?

A. Manages hardware and software resources B. Manages only software C. Manages only hardware D. Is an application program

25. What is a deadlock?

A. When a process terminates B. When two or more processes wait indefinitely for each other C. When CPU is idle D. When memory is full

26. What is a system call?

A. A hardware interrupt B. A request to the kernel C. A compiler directive D. A library function

27. What does WAN stand for?

A. Wireless Area Network B. World Area Network C. Web Area Network D. Wide Area Network

28. What are IP addresses?

A. Unique identifiers for devices B. Device names C. User names D. File names

29. What does DNS do?

A. Translates IP to MAC B. Translates MAC to IP C. Translates domain names to IP addresses D. Translates ports to services

30. Which is the lowest layer of the OSI model?

A. Physical layer B. Data link layer C. Network layer D. Application layer

31. What are interrupts?

A. CPU instructions B. Memory read/write C. Signals to handle urgent events D. System calls

32. What characterizes a finite automaton?

A. Infinite number of states B. No states C. Variable number of states D. Finite number of states

33. What type of language does a DFA accept?

A. Context-free language B. Context-sensitive language C. Regular language D. Recursively enumerable language

34. What do regular expressions describe?

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

35. What is the status of the halting problem?

A. Undecidable B. Decidable C. Polynomial time D. NP-complete

36. Is the intersection of two regular languages regular?

A. Never regular B. Always regular C. Sometimes regular D. Always context-free

37. Is the complement of a regular language regular?

A. Always regular B. Never regular C. Sometimes regular D. Always context-free

38. What is the first phase of a compiler?

A. Parsing B. Code generation C. Lexical analysis D. Optimization

39. What is peephole optimization?

A. Examines small instruction sequences B. Examines entire programs C. Examines data structures D. Examines symbol tables

40. What is panic mode error recovery?

A. Discards tokens until synchronizing token B. Ignores all errors C. Corrects errors D. Reports only first error

41. What is static scoping?

A. At compile time based on structure B. At runtime C. Based on execution D. Based on user input

42. What is loop unrolling?

A. Removes loops B. Adds loops C. Combines loops D. Replicates loop iterations to reduce overhead

43. What is operator precedence parsing?

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

44. What represents the flow of control in a program?

A. Data flow B. Symbol table C. Parse tree D. Control flow graph

45. What is a classic example of ambiguity in programming languages?

A. Dangling else B. Dangling if C. Dangling while D. Dangling for

46. What algorithm parses expressions efficiently?

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

47. What data structure is used to evaluate postfix expressions?

A. Stack B. Queue C. Array D. Tree

48. What type of elements does an array have?

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

49. What is a continuation?

A. Data state B. Memory state C. Variable state D. Control state

50. What does a polymorphic function do?

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

51. What is strict evaluation?

A. Delays computation B. Never computes C. Computes as soon as bound D. Computes multiple times

52. What is a process?

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

53. What occurs when allocated memory is not released?

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

54. What is a segmentation fault?

A. Memory access violation B. Compile error C. Link error D. Syntax error

55. 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

56. 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

57. What is the first phase of a compiler?

A. Parsing B. Code generation C. Lexical analysis D. Optimization

58. What is left factoring used for?

A. Removes recursion B. Transforms to CNF C. Eliminates ambiguity D. Converts to BNF

59. What does error recovery do in compilers?

A. Ignores errors B. Handles errors to continue parsing C. Terminates compilation D. Displays errors

60. What is panic mode error recovery?

A. Discards tokens until synchronizing token B. Ignores all errors C. Corrects errors D. Reports only first error

61. What associates semantic actions with grammar productions?

A. Lexical analysis B. Parsing C. Syntax-directed translation D. Code optimization

62. What is an admissible heuristic?

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

63. How does reinforcement learning learn?

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

64. What is a common activation function?

A. Linear function B. Sigmoid function C. Quadratic function D. Cubic function

65. What does NLP deal with?

A. Natural environment B. Natural numbers C. Human language and computers D. Natural science

66. What type of ML predicts continuous values?

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

67. What type of ML predicts discrete labels?

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

68. What does SVM do?

A. Clustering B. Regression C. Reinforcement D. Find a hyperplane for classification

69. What is underfitting?

A. Overfitting B. Well C. Underfitting D. Both

70. What is a high-bias model?

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

71. What is a high-variance model?

A. Simple B. Underfit C. Complex and may overfit D. Low variance

72. What does gradient descent do?

A. Classification B. Clustering C. Reinforcement D. Optimization by minimizing loss

73. What does the ROC curve plot?

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

74. What does a bar chart display?

A. Numerical data B. Categorical data C. Time series D. Correlation

75. What do inferential statistics do?

A. Descriptive B. Predictive C. Prescriptive D. Inferential

76. What does a p-value indicate?

A. Effect size B. P-value C. Confidence interval D. Standard error

77. What does ETL stand for?

A. Extract, Load, Transform B. Extract, Transform, Load C. Extract, Load, Transform D. ETL

78. What is the address of a web resource called?

A. IP address B. MAC address C. Domain name D. URL

79. Which browser storage is persistent?

A. Cookie B. Session C. Cache D. Local storage

80. What accelerates graphics rendering?

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

81. What is DirectX?

A. OpenGL B. DirectX C. Vulkan D. Metal

82. What are geometric transformations?

A. Translation, rotation, scaling B. Rotation only C. Scaling only D. Translation only

83. What is used for hidden surface removal?

A. Alpha B. Z-buffering C. Blending D. Transparency

84. What uses multiple systems to attack?

A. DoS B. DDoS C. Phishing D. Spoofing

85. What is a set of rules for protecting information?

A. Software B. Hardware C. Security policy D. Network

86. What outlines how to handle breaches?

A. Incident response B. Prevention C. Detection D. Recovery

87. What are the states of a binary signal?

A. Analog B. Decimal C. Binary D. Hexadecimal

88. What converts binary code to multiple outputs?

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

89. What cycles through a sequence of states?

A. Register B. Counter C. Decoder D. Encoder

90. What theorem states complement of sum equals product of complements?

A. De Morgan's theorem B. Boolean addition C. Boolean multiplication D. Commutative law

91. What does a graph consist of?

A. Vertices only B. Edges only C. Both D. Vertices and edges

92. What type of graph has directed edges?

A. Undirected B. Directed C. Mixed D. No edges

93. What uses AND, OR, NOT?

A. Propositional logic B. Predicate logic C. Modal logic D. Fuzzy logic

94. What quantifier means "for all"?

A. Universal (∀) B. Existential (∃) C. Negated D. None

95. What proof assumes the opposite?

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

96. What takes countable values?

A. Continuous B. Infinite C. Uncountable D. Discrete countable

97. What assesses evidence against a null hypothesis?

A. Estimation B. Description C. Prediction D. Hypothesis testing

98. What draws conclusions from samples?

A. Descriptive B. Inferential C. Predictive D. Prescriptive

99. What is the difference between max and min?

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

100. What represents a frequency distribution?

A. Bar chart B. Histogram C. Pie chart D. Line chart

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