Miscellaneous Computer Science MCQs Question and Answer

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Miscellaneous Computer Science MCQs  Previous Year Computer Science Exam Top 50 MCQs (Most Important)

1. The term  “PUSH”    and  “POP”  Is related to the.
2. Array
3. Lists
4. Stacks
5. All of the above
6. None of the above

Ans:= 3

2. A string of eight 0s and 1s is called a:
3. megabyte.
4. B. byte.
5. Kilobyte

Answer: B

3. Easily reloctable language is
   1. Machine language
   2. Assembly language
   3. High level language
   4. Medium level language
   5. Low level language

Ans:= 2

4. One of the main feature that distinguish microprocessors from micro- computers is
   1. Words are usually larger in microprocessors
   2. Words are shorter than microprocessors

3. Microprocessors does not contain I/O devices
4. Exactly the same as the machine cycle tim
5. None of the above

Ans:= 3

5. DPI stands for
   1. Desktop projection ink
   2. Dot per inch
   3. Dotmatricks printer ink
   4. Desktop pixel inch
   5. None of these

Ans:= 2

6. Computers use the            language      to      process     
7.   A. processing
8. kilobyte
9. binary representational

Answer: C

7. File record length
   1. Should always be fixed
   2. Should always be variable
   3. Depends upon the the size of file
   4. Should be chosen to match the data characteristics
   5. None of the above

Ans:= 4

8. …………….. is the time required by a sector to reach below read/write heat
9. Seek time
10. Latency time
11. Access time
12. None
13. None of the above

Ans:= 2

9. ……………… is a technique of improving the priority of process waiting in queue for CPU allocation
   1. Starvation
   2. Ageing
   3. Revocation
   4. Relocation
   5. None of the above

 

Ans:= 2

2. A grammar for a programming language is a formal description
   1. Syntax
3. Semantics
4. Structure
5. Code
6. None of the above

Ans:= 3

1. All of the following are examples of real security and privacy risks EXCEPT: hackers.
4. identity

Answer: B

12. The Memory allocation scheme

Subject  to “external” fragmentation  is.

1. Segmentation
2. Swapping
3. Pure Demand paging
4. Multiple fixed contiguous 
5. None of the these

Ans:= 1

13. Virtual Memory is.
14. simple to implement
15. used in all major commercial operating System
16. less efficient in utilization of memory
17. useful when fast I/O devices are not available.
18. None of these

Ans:= 2

14. Before proceeding with its execution each process must acquire all the resources it needs is called.
15. Hold and wait
16. No Pre-emption
17. circular wait
18. Starvation
19. None of these

Ans:= 1

15. The main reason to encrypt a  file  is to
16. Reduce its size
17. Secure it for transmission
18. Prepare it for backup
19. Include it in start-up sequence
20. None of these

Ans:= 2

16. “LRU” page replacement policy is .
17. last Replaced Unit
18. Least Restored Unit
19. Least Recently Used
20. Least Required Unit
21. None of these

Ans:= 3

17. Which of   the   Following  is   not   a fundamental process state.
18. ready
19. terminated
20. executing
21. blocked
22. none of these

Ans:= 4

18. ODBC stands For:-
19. Object Database Connectivity
20. Oral Database Connectivity
21. Oracle Database Connectivity
22. Open Database Connectivity
23. None of these

Ans:= 4

19. Which two   files   are   used   during operation of the DBMS.
20. Query languages and utilities
21. DML and Query Language
22. Data dictionary    and    transiction language
23. Data dictionary and query language
24. None of these

Ans:= 3

20. A protocol is a set of rules governing a time sequence of events that must take place.
21. Between proxy
22. Between an interface
23. Between Modems
24. Across an interface
25. None of these

Ans:= 1

21. In Communication Satellite, Multiple Repeaters are known
22. Detector
23. Modulator
24. Stations
25. transponders
26. None of these

Ans:= 4

22. Which of the following is required to communicate between two computers ?
23. communication software
24. protocol
25. communication hardware
26. all of   above   including   access   to transmission  medium
27. None of these

Ans:= 4

23. Which of the following is an advantage to using fiber optics data transmission.
24. Resistance to data theft
25. Fast Data transmission Rate
26. Low noise Level
27. All of the above

Ans:= 4

24.Which   of   the   following   is   not   a transmission medium ?

1. Telephone lines
2. Coaxial Cabels
3. Modem
4. Microwave Systems
5. None of these

Ans:= 3

25. What is   meant   by   a   dedicated computer ?
26. Which is Used by one person only
27. Which is assigned to one and only one task.
28. which does not kind of software
29. which is    meant    for    application software only

Ans:= 2

26. A computer program that converts an entire program into machine language at one time is called an
27. Interpreter
28. Simulator
29. Compiler
30. Commander
31. None of these

Ans:= 3

27. A technique for direct search is .
28. Binary Search
29. Linear Search
30. Tree Search
31. Hashing
32. None of these

Ans:= 4

28. Two Main measures for the efficiency of an algorithm are.
29. Processor and Memory
30. Complexity and capacity
31. Time and Space
32. Data and Space
33. None of these

Ans:=3

29. The space factor when determining the efficiency of algorithm is measured by.
30. Counting the    maximum    memory needed by the algorithm
31. Counting the    minimum    memory needed by the algorithm
32. Counting the average memory needed by the algorithm.
33. counting the   maximum  disk   space needed by the algorithm
34. None of these

Ans:= 1

30. The Memory  address   of   the   first element of an array is called.
31. floor address
32. foundation address
33. first address
34. base address
35. none of these

Ans:= 4

3. Latency time is
   1. Time to spin the needed data under head
   2. Time to spin the needed data under track
   3. Time to spin data under sector
   4. All of the above
   5. None of the these

Ans:= 1

1. What does Router do in a Network ?
2. Forwards a Packet to all outgoing links
3. Forwards a  packet  to  the  next  free outgoing
4. Determines on  which  outing  link  a packet is to be forwarded
5. Forwards a packet to all outgoing links except the originated
6. None of these

Ans:= 3

33.Repeator  operates  in  which  layer  of the OSI Model ?

1. Physical Layer
2. Data Link Layer
3. Network Layer
4. Transport Layer
5. None of these

Ans:= 1

34. IP address are converted to
35. A binary string
36. A lphanumeric string
37. A hirearachy of domain names
38. A hexadecimal string
39. None of these

Ans:= 3

35. By an intranet we mean
36. a LAN of an organization
37. a Wide  area  network  connecting  all branches of an
38. A corporate computer network
39. a network connecting all computers organization and using the internet protocol
40. None of these

Ans:= 4

36. GIF images can have only upto……..

Colors.

1. 128
2. 256
3. 512

4.1024

5. None of these

Ans:= 2

37. ………. Is stored on a client and contains state information of the website visited.
38. Cookies
39. Servelet
40. History
41. Resident Page
42. None of these

Ans:= 1

38……. Are small application that are accessed on an internet server, transported over the internet, automatically installed and run as part of a web document.

1. Applets
2. Java Bean
3. Sockets
4. Java Component
5. None of these Ans:= 1
6. Encryption is the conversion of data in some intelligible format into an unintelligible format called……… to prevent the data from being understood if read by an unauthorized party.
7. Clear Text
8. Encrypted Text
9. Cipher Text
10. Coded Text
11. None of the these

Ans:= 3

40. The Method for storing data temporarily such that the input-output of the same job is overlapped with its own processing is known as.
41. Spooling
42. Contention
43. I/O wait
44. Buffering
45. None of these

Ans:= 4

41. A process known as

                          is used by large retailers to study trends.

1. data mining B. data selection C. POS
2. data conversion

Answer: A

42. The ability to recover and read deleted or damaged files from a criminal’s computer is an example of a law enforcement specialty called:
43. robotics. B. simulation.
44. computer forensics. D. animation.

Answer: C

43. is the science

that attempts to produce machines that display the same type of intelligence that humans do.

1. Nanoscience
2. B. Nanotechnology
3. C. Simulation
4. Artificial intelligence (AI)

Answer: D

44. is data that has

been organized or presented in a meaningful fashion.

1. A process
2. B. Software
3. C. Storage
4. Information

Answer: D

45. The name for the way that computers manipulate data into information is        called: 
46. a.programming.
47. processing.
48. C. storing.
49. organizing.

Answer: B

46. Computers gather data, which means that they allow users to

data.

1. present
2. B. input
3. C. output
4. store

Answer: B

1. Which of the following does not affect the resolution of a video display image.
2. Bandwidth
3. Raster scan image
4. Vertical and horizontal lines of resolution
5. Screen size
6. None of these

Ans:=  1

• Database Software may be divided into

1. five distinct categories
2. four distinct categoris
3. three distinct categoris
4. two distinct categoris
5. None of these

Ans:=  3

49.is a technique of temporarily  removing  inactive  program from the memory of computer System.

1. Swapping
2. Spooling Seamphone
3. Scheduler
4. None of these

Ans:= 1

50. who is father of computer science ?
51. Charles Babbage
52. John McCarthy
53. Dennis Ritchie
54. Allan Turing

Ans:=D

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