Computer Lecturer Solved mcqs

  Lecturer Computer Science Fully Solved Paper 

 

لیکچرار کمپیوٹر مکمل حل شدہ پیپر

 

 

1. Which module gives control of the CPU to the process selected by the short term scheduler?:





ANSWER= (A) Dispatcher

 

2. The processes that are residing in main memory for execution are kept on a list called:





ANSWER= (B) Ready queue

 

3. The interval from the time of submission of a process to the time of completion is termed as:





ANSWER= (B) Turnaround time

 

4. Which scheduling algorithm allocatesvthe CPU first to the process that request the CPU first?:





ANSWER= (A) First come first served scheduling

 

5. In priority scheduling algorithm:





ANSWER= (A) CPU is allocated to the process with highest priority

 

6. In priority scheduling algorithm, when a process arrives at the ready queue, its priority is compared with the priority of:





ANSWER= (B) Currently running process

 

7. Time quantum is defined in:





ANSWER= (B) Round robin scheduling algorithm

 

8. In multilevel feedback scheduling algorithm:





ANSWER= (A) A process can move to a different classified ready queue

 

9. Which of the following cannot be sheduled by algorithm:





ANSWER= (B) User Level Thread

 

10. The process refer to 5 pages,A,B,C,D,E in the order: A,B,C,D,A,B,E,A,B,C,D,E.If the page replacement is FIFO.the number of page transfers with an empty internal store of 3 fames is:





ANSWER= (C) 9

 

11. A memory page containing a heavily used variable,and the page replacement algorithm used is:





ANSWER= (C) FIFO

 

12. Users are........that their processes are running on a paged system:





ANSWER= (B) Unaware

 

13. The aim of creating page replacement algorithm is to:





ANSWER= (C) Decrease the page fault rate

 

14. A FIFO Replacement algorithm associates with each page the..........:





ANSWER= (A) Time it was brought into memory

 

15. Optimal page-replacement algorithm is:





ANSWER= (C) Replace page that will not be used for long time

 

16. Optimal page-replacement algorithm is difficult to implement because:





ANSWER= (B) It requires future knowledge

 

17. LRU page-Replacement algorithm associates with each page the--------:





ANSWER= (B) Time of that pages last use

 

18. For 3 pages frames, the following is the reference string 7 0 1 20 3 0 4 2 3 0 3 2 1 2 0 1 7 0 1; How many page faults does the LRU page replacement algorithm produce:





ANSWER= (A) 10

 

19. CPU Fetches the instruction from memory according to the value of





ANSWER= (A) Program counter

 

20. A memory buffer used to accommodate a spood differential is called:





ANSWER= (B) Cache

 

21. Which one of the following is the address generated by the CPU:





ANSWER= (C) Logical Address

 

22. Run time mapping from virtual to physical address is done by:





ANSWER= (A) Memory management unit

 

23. Memory management technique in which system stores and retrieves data from secondry storage to main memory is called. :





ANSWER= (B) Paging

 

24. The Interrupt-request line is a part of the.:





ANSWER= (B) Control line

 

25. The return address from the interrupt-service routine is stored on the:





ANSWER= (C) Processor slack

 

26. The signal sent to the device from the processor to device after receiving an interrupt is called:





ANSWER= (A) Interrupt-acknowledge

 

27. A Relational database consists of a collection of:





ANSWER= (A) Tables

 

28. A......... in a table presents a relationship among a set of values:





ANSWER= (A) Column

 

29. The term....... is used to refer to a row:





ANSWER= (C) Field

 

30. The term attribute refers to a........of the table:





ANSWER= (B) Column

 

31. For each attribute of a relation,there is a set of permitted values called..... of attribute:





ANSWER= (A) Domain

 

32. Which of the following is a tuple-generating dependency.:





ANSWER= (C) Multi-valued dependencies

 

33. The main task carried out in the....... is to remove repeating attributes to separate tables:





ANSWER= (A) First Normal form

 

34. Which of the normal form is based on multi-valued dependencies:





ANSWER= (D) Fourth

 

35. Which forms has a relation that possesses data about an individual entry:





ANSWER= (C) 4NF

 

36. Which of the following has each related entity has its own schema and there is an additional schema for the relationship set ?:





ANSWER= (A) A many to many relationship set

 

37. In which of the following a separate schema is created primary key of the entity set:





ANSWER= (B) A multi valued attribute

 

38. In 2NF:





ANSWER= (C) No partial FDs exist

 

39. .......can help us detect poor E-R design:





ANSWER= (D) Functional dependencies

 

40. Build & Fix model is suitable for programming exercise of........ LOC:





ANSWER= (A) 100-200

 

41. What is the best way to represent the attributes in a large database :





ANSWER= (B) Concatenation

 

42. Designers use which of the following to tune performance of systems to support time critical operations :





ANSWER= (A) Demoralization

 

43. RAD stands for:





ANSWER= (B) Rapid Application Development

 

44. Which one of the following models is not suitable for accommodating any change:





ANSWER= (D) Waterfall model

 

45. Which one of the following is not a phase of Prototyping model:





ANSWER= (B) Coding

 

46. RAD Model has:





ANSWER= (C) 5 Phase

 

47. What is the major drawback of using RAD model :





ANSWER= (D) Both A & C

 

48. SDLC stands for:





ANSWER= (A) Software Development Life Cycle

 

49. Which model can be selected if user is involved in all the phases of SDLC:





ANSWER= (C) RAD Model

 

50. Two devices are in a network if :





ANSWER= (A) A process in one device is able to exchange information with a process in another device

 

51. In computer network nodes are:





ANSWER= (D) All of these

 

52. Communication channel is shared by all the machines on the network in:





ANSWER= (A) Broadcast network

 

53. Bluetooth is an example of :





ANSWER= (A) Personal area network

 

54. A _________ is a device that forwards packets between networks by processing the routing information included in the packet:





ANSWER= (C) Router

 

55. A list of protocols used by a system, one protocol per layer, is called:





ANSWER= (B) Protocol stack

 

56. Network congestion occurs :





ANSWER= (A) In case of traffic overloading

 

57. Which of the following extends a private network across public networks? :





ANSWER= (B) Virtual private network

 

58. The network layer concerns with :





ANSWER= (C) Packets

 

59. Which of the following is not a function of network layer? :





ANSWER= (D) None of these

 

60. The 4 byte IP address consists of:





ANSWER= (C) Both A and B

 

61. In virtual circuit, network each packet contains :





ANSWER= (A) Full source and destination address

 

62. Which one of the following routing algorithm can be used for network layer design? :





ANSWER= (D) All of these

 

63. The network layer protocol of internet is:





ANSWER= (B) Internet protocol

 

64. ICMP is primarily used for:





ANSWER= (A) Error and diagnostic functions

 

65. The lexical analyzer takes _________ as input and produces a stream of __________ as output. :





ANSWER= (C) Both A and B

 

66. Parsing is also known as :





ANSWER= (B) Syntax analysis

 

67. A compiler program written in a high level language is called:





ANSWER= (A) Source program

 

68. The number of pixels stored in the frame buffer of a graphics system is known as :





ANSWER= (A) Resolution

 

69. In graphical system, the array of pixels in the picture is stored in :





ANSWER= (B) Frame buffer

 

70. Which of the following is key characteristic of hacker? :





ANSWER= (D) All of these

 

71. Which of the following focuses on the discovery of unknown properties of data? :





ANSWER= (A) Data mining

 

72. Which process model should be used in virtually all situations of web engineering? :





ANSWER= (A) Incremental model

 

73. Which analysis is a part of analysis model of the web engineering process framework? :





ANSWER= (D) All of these

 

74. Which of the following statements are incorrect with reference to web based systems? Web based systems :





ANSWER= (A) Should be un-scalable

 

75. What category of web based system would you assign to electronic shopping? :





ANSWER= (C) Transaction - oriented

 

76. What category of web based system would you assign to discussion groups? :





ANSWER= (B) Online communities

 

77. W3C stands for:





ANSWER= (A) World Wide Web Consortium

 

78. Which of the following is a risk associated with using hypertext in web applications? :





ANSWER= (C) Both A and B

 

79. Which of the following is not a NosQL database? :





ANSWER= (A) SQL server

 

80. Which of the following is a NosQL database type? :





ANSWER= (B) Documents database

 

81. Which of the following is an example of Operating system? :





ANSWER= (D) Microsoft Windows

 

82. By default on which page the Header or the Footer is printed, in MS World? :





ANSWER= (C) On every page

 

83. Complete the number series:15,31,63, 127, 255________:





ANSWER= (B) 511

 

84. Solve the question:(1/4,+5/8) +(1/2+3/4)=______?:





ANSWER= (C) 5/12

 

85. '' To fact the music '' means:





ANSWER= (D) To bear the consequences

 

86. What is the synonym of '' Posthumous '' :





ANSWER= (A) After death

 

87. What is the antonym of '' Meandering ''? :





ANSWER= (B) Straight

 

88. Find the correctly spelt word :





ANSWER= (C) Dichotomy

 

89. To which fruit is Plaintain similar to :





ANSWER= (B) Apples

 

90. Exposure to sunlight results in formation of ___________ in the body. :





ANSWER= (D) Vitamin D

 

91. Who was the first American president to resign while in office :





ANSWER= (C) Richard Nixon

 

92. The current capital of Kazakhstan is Astana. Name the former capital:





ANSWER= (A) Almaty

 

93. In Geography what do you understand by ''Pangaea'':





ANSWER= (A) A super continent

 

94. After partition of Bengal, the capital of East Bengal and Assam was:





ANSWER= (A) Dhaka

 

95. Which was the official language during the Muslim rule in India? :





ANSWER= (C) Persian

 

96. Which of the following is not an Olympic sport? :





ANSWER= (C) Wrestling

 

97. The flag of which country is also known as the Union Jack? :





ANSWER= (A) UK

 

98. Boao Forum for Asia, which holds its annual conference at Boao Hainan Province, China was originally proposed by former President, Ramos of Philippines, former Prime Minister, Monhiro Hosokawa of Japan and :





ANSWER= (A) Former Prime minister Bob Hawke of Australia

 

99. ''ترکی تمام ہونا'' محاورہ ہے اس کا مفہوم ہے. :





ANSWER= (D) بہادری ختم ہونا

 

100. امیر خسرو کس شہر میں مدفون ہیں. :





ANSWER= (C) دہلی

 

 

  Fully Solved Paper Of PPSC Lecturer Computer Science With Answers only on mcqs warehouse

Share Story On Your Favorite Platform !

By Admin