Practice test

Data representation - Test Set 8

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

    Which of the following is a single-user operating system?
    1. MS-DOS
    2. MAC
    3. Windows
    4. None of these
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  2. Question 2

    Which of the following operating systems not guarantees response within a specified time constraints?
    1. Distributed operating system
    2. Interactive operating system
    3. Time sharing operating system
    4. All of the above
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  3. Question 3

    Which of the following is the core part of Linux and is responsible for all major activities?
    1. GUI
    2. Kernel
    3. Editor
    4. Shale
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  4. Question 4

    The process of loading an operating system into the computer’s main memory (RAM) is known as____________.
    1. response time
    2. waiting time
    3. turnaround time
    4. boot
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  5. Question 5

    Which process checks to ensure the components of the computer are operating and connected properly?
    1. Saving
    2. Editing
    3. Booting
    4. Processing
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  6. Question 6

    Restart of computer is called _____________ when computer is already ON.
    1. warm booting
    2. logging OFF
    3. cold booting
    4. shut down
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  7. Question 7

    Which of the following is stored in the process control block (PCB) of a process?
    1. Program counter
    2. CPU registers
    3. Process state
    4. All of these
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  8. Question 8

    How many states can a process be in within an operating system?
    1. 3
    2. 4
    3. 5
    4. 6
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  9. Question 9

    Computers use the ________________ number system to store data and perform calculations.
    1. binary
    2. hexadecimal
    3. decimal
    4. octal
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  10. Question 10

    The radix (r) value of the octal number system is _____________.
    1. 10
    2. 8
    3. 16
    4. 2
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  11. Question 11

    The total number of digits used to represent a number in a number system is called its
    1. face value
    2. positional value
    3. base value
    4. None of these
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  12. Question 12

    The A to F alphabets represent
    1. 10 to 20 decimal numbers
    2. 0 to 12 decimal numbers
    3. 1 to 15 decimal numbers
    4. 10 to 15 decimal numbers
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  13. Question 13

    Which of the following is an example of a binary number?
    1. 0111
    2. 006
    3. 1234
    4. 6AH1
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  14. Question 14

    A_______ bit is an extra bit included with a binary message to make the total number of 1s either odd or even.
    1. exclusive
    2. parity
    3. complementary
    4. checker
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  15. Question 15

    How many characters can be made from 1 byte to 28 bytes?
    1. 343
    2. 256
    3. 255
    4. 295
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  16. Question 16

    What is the binary equivalent of the decimal number 10.25?
    1. 1111.01
    2. 1101.01
    3. 1011.01
    4. 1010.01
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  17. Question 17

    The decimal equivalent of binary 101 is ___________.
    1. 5
    2. 6
    3. 3
    4. 2
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  18. Question 18

    The input hexadecimal representation of 1110 is ____________.
    1. 15
    2. E
    3. 0111
    4. 14
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  19. Question 19

    Convert (22)8 into its corresponding decimal number.
    1. 82
    2. 28
    3. 18
    4. 81
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  20. Question 20

    Convert (5401)8 to hexadecimal.
    1. C01
    2. A01
    3. A02
    4. B01
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