Practice test

Data representation - Test Set 5

Review 20 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

20 questions

Questions and explanations

  1. Question 1

    An/A _______________ is a finite set of instructions which, when followed, accomplish a particular task.
    1. data
    2. algorithm
    3. array
    4. node
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  2. Question 2

    The primary goal of an algorithm is to
    1. translate high-level code into machine code
    2. create hardware components
    3. solve a specific problem efficiently
    4. generate random outputs
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  3. Question 3

    An algorithm should always have which of the following characteristics?
    1. Only graphical representation
    2. Infinite steps
    3. Requires special software to run
    4. Clear and unambiguous instructions
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  4. Question 4

    Which of the following is not a characteristic of a good algorithm?
    1. Ambiguity
    2. Input and output
    3. Definiteness
    4. Finiteness
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  5. Question 5

    Which of the following is an example of an algorithm?
    1. A web browser
    2. A recipe for baking a cake
    3. A programming language
    4. A computer hardware device
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  6. Question 6

    In a flowchart, what does a rectangle symbol typically represent?
    1. Input or output
    2. Decision point
    3. Process or operation
    4. Start/End
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  7. Question 7

    Which of the following is a graphical representation of an algorithm?
    1. Pseudo code
    2. Program
    3. Source code
    4. Flowchart
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  8. Question 8

    Which symbol in a flowchart represents the start or end of a process?
    1. Oval
    2. Parallelogram
    3. Diamond
    4. Rectangle
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  9. Question 9

    A flowchart helps in
    1. designing hardware systems.
    2. understanding the logic of program.
    3. writing complex code directly.
    4. None of the above
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  10. Question 10

    Which of the following is a method of describing computer algorithms using a combination of natural language and programming language?
    1. Flowchart
    2. Node
    3. Pseudocode
    4. Array
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  11. Question 11

    Which of the following is not a feature of DBMS?
    1. Data consistency
    2. Data security
    3. Data integrity
    4. Data redundancy
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  12. Question 12

    Which of the following is an example of a DBMS?
    1. Oracle
    2. Notepad
    3. PowerPoint
    4. Microsoft Excel
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  13. Question 13

    An operating system is said to be multi user, if
    1. more than one programs can run simultaneously
    2. more than one users can work simultaneously
    3. Either (a) or (b)
    4. None of the above
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  14. Question 14

    A multi-programming system can be defined as a
    1. computer system that permits multiple users to run programs at the same time
    2. computer system that permits to run similar programs at multiple time
    3. computer system that permits multiple programs simultaneously on a single processor
    4. computer program that runs on multiple processors
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  15. Question 15

    In Linux, you can change your working directory using ____________ command followed by the path name to which you want to move.
    1. pwd
    2. usr
    3. ls
    4. cd
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  16. Question 16

    When were MS windows operating systems proposed?
    1. 1985
    2. 1994
    3. 1990
    4. 1992
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  17. Question 17

    What is Ubuntu in the context of computer?
    1. Microsoft to launch an android-based search engine
    2. An open-source operating system sponsored by Canonical Limited
    3. An anti-virus software from Microsoft
    4. A search engine of the mozilla foundation
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  18. Question 18

    Which of the following is an open source operating system used to manage computer hardware and software?
    1. Apple
    2. Microsoft windows
    3. Linux
    4. Macintosh
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  19. Question 19

    MS DOS is an operating system which contains ________________.
    1. voice line interface
    2. open source origin
    3. graphical user interface
    4. command line interface
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  20. Question 20

    Which of the following is a multi-user operating system?
    1. Windows 7
    2. MS-DOS
    3. iOS
    4. Unix
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