Practice test

Data representation - Test Set 3

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 the smallest unit of data in the database storage hierarchy?
    1. Record
    2. Field
    3. Byte
    4. Bit
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  2. Question 2

    Which of the following is not a part of the database storage hierarchy?
    1. Folder
    2. Table
    3. Bit
    4. File
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  3. Question 3

    Which of the following algebraic functions represents NAND gate?
    1. (xy)'
    2. (x+y)'
    3. x+y
    4. x*y
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  4. Question 4

    What is the Boolean expression for a three-input AND gate?
    1. X = A + B + C
    2. X = (A + B + C)
    3. X = (A · B · C)
    4. X = A · B · C
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  5. Question 5

    The NOR logic gate is the same as the operation of the _________ gate with an inverter connected to the output.
    1. NAND
    2. OR
    3. AND
    4. None of these
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  6. Question 6

    The output in an OR gate will be 0 when
    1. A=0,B=1
    2. A=1,B=0
    3. A=0,B=0
    4. None of the above
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  7. Question 7

    The output of the XOR gate is high or logic 1 only when its two inputs are
    1. not defined
    2. same
    3. zero
    4. different
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  8. Question 8

    Logic gates perform _______________.
    1. boolean operations
    2. mathematical operations
    3. alphanumerical operations
    4. None of the above
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  9. Question 9

    If the inputs for an OR gate are 0 and 1 respectively, its output will be
    1. 0
    2. 1
    3. Error
    4. None of these
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  10. Question 10

    Which of the following high-level language is suitable for scientific and engineering applications?
    1. COBOL
    2. PROLOG
    3. FORTRAN
    4. LISP
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  11. Question 11

    Which of the following language program written on one computer may not work on another computer with a different processor?
    1. Object based language
    2. Procedural language
    3. High-level language
    4. Machine language
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  12. Question 12

    Which of the following programming language is used in general for artificial intelligence based problems?
    1. Python
    2. Assembly
    3. BASIC
    4. C
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  13. Question 13

    In 1970, Alan Kay invented the first object-oriented programming language called _______________.
    1. Tablet comp
    2. Smalltalk
    3. Kiddi comp
    4. Kudo comp
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  14. Question 14

    A computer can only understand __________ directly.
    1. machine language
    2. algorithms
    3. high-level language
    4. middle-level language
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  15. Question 15

    Which of the following is a fifty generation language?
    1. COBOL
    2. LISP
    3. JAVA
    4. BASIC
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  16. Question 16

    Which generation of computer languages includes structured query language (SQL)?
    1. Fourth generation languages(4GL)
    2. Second generation languages(2GL)
    3. Third generation languages(3GL)
    4. Fifty generation languages(5GL)
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  17. Question 17

    which language is optimised for web and internet applications?
    1. Java
    2. Cobol
    3. C++
    4. C
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  18. Question 18

    Which of the following is an example of a high-level programming language?
    1. Assembly language
    2. Machine language
    3. Python
    4. Binary language
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  19. Question 19

    What does COBOL stand for?
    1. Coded Binary Object Language
    2. Code Binary Online Language
    3. Common Binary Language
    4. Common Business-Oriented Language
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  20. Question 20

    Which language is often referred to as the mother of all programming languages?
    1. C
    2. Assembly Language
    3. Python
    4. Java
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