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12th Standard Computer Science English Medium Free Online Test 1 Mark Questions 2020 - Part Five

12th Standard

    Reg.No. :
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Computer Science

Time : 00:25:00 Hrs
Total Marks : 25

    Answer all the questions

    25 x 1 = 25
  1. Which of the following defines what an object can do?

    (a)

    Operating System

    (b)

    Compiler

    (c)

    Interface

    (d)

    Interpreter

  2. In object oriented programs, how the object is processed and executed is__________

    (a)

    Implementation

    (b)

    Interface

    (c)

    recursion

    (d)

    function

  3. Which of the following is a compound structure?

    (a)

    Pair

    (b)

    Triplet

    (c)

    single

    (d)

    quadrat

  4. Which of the following security technique that regulates who canuse resources in a computing environment?

    (a)

    Password

    (b)

    Authentication

    (c)

    Access control

    (d)

    Certification

  5. Time complexity of bubble sort in best case is

    (a)

    θ (n)

    (b)

    θ (nlogn)

    (c)

    θ (n2)

    (d)

    θ (n(logn) 2)

  6. Which of the following is not a Keyword in Python ?

    (a)

    break

    (b)

    while

    (c)

    continue

    (d)

    operators

  7. What is the output of the following snippet?
    T=1
    while T:
    print(True)
    break

    (a)

    False

    (b)

    True

    (c)

    0

    (d)

    no output

  8. Python provides ______ types of looping constructs.

    (a)

    3

    (b)

    2

    (c)

    4

    (d)

    6

  9. In which arguments the correct positional order is passed to a function?

    (a)

    Required

    (b)

    Keyword

    (c)

    Default

    (d)

    Variable-length

  10. Which of the following statement exits a function?

    (a)

    Exit

    (b)

    Def

    (c)

    Return

    (d)

    None of these

  11. Predict the output of the following code
    x = lambda y, z : y + z
    print (10,15)

    (a)

    10

    (b)

    15

    (c)

    25

    (d)

    1025

  12. Defining a variable outside a function, its _ by default.

    (a)

    local

    (b)

    global

    (c)

    function

    (d)

    operands

  13. Which function returns the ascii value for the Unicode character?

    (a)

    ord ()

    (b)

    type()

    (c)

    ascii()

    (d)

    chr()

  14. _____ is applied in any recursive function is known as base condition.

    (a)

    Finite iteration

    (b)

    Default arguments

    (c)

    Keyword arguments

    (d)

    Infinite iteration

  15. The positive subscript always starts with

    (a)

    0

    (b)

    1

    (c)

    -1

    (d)

    0.1

  16. Python provides a function _____ to change all occurrences of a particular character in a string.

    (a)

    replace()

    (b)

    change ()

    (c)

    change all ()

    (d)

    repalceall ()

  17. The 'in' and 'not in ' operators are called as _____ operators.

    (a)

    string

    (b)

    string formatting

    (c)

    membership

    (d)

    reference

  18. Let setA={3,6,9}, setB={1,3,9}. What will be the result of the following snippet?
    print(setA|setB)

    (a)

    {3,6,9,1,3,9}

    (b)

    {3,9}

    (c)

    {1}

    (d)

    {1,3,6,9}

  19. Which of the following class declaration is correct?

    (a)

    class class_name

    (b)

    class class_name<>

    (c)

    class class_name:

    (d)

    class class_name[ ]

  20. ___________ is a computer based record keeping system

    (a)

    Data model

    (b)

    Data relationships

    (c)

    DBMS

    (d)

    Entity relationship

  21. ________ are the one who store, retrieve, update and delete data

    (a)

    DBA

    (b)

    Database designers

    (c)

    Application developersEnd user

    (d)

    End user

  22. Which of the following component simply deals with description of the database schema?

    (a)

    DML

    (b)

    DDL

    (c)

    DCL

    (d)

    DQL

  23. Double data type precision may exceed

    (a)

    64

    (b)

    74

    (c)

    54

    (d)

    14

  24. Defined multiple constraints are separated by

    (a)

    comma

    (b)

    space

    (c)

    semicolon

    (d)

    colon

  25. Observe the output figure. Identify the coding for obtaining this output.

    (a)

    import matplotlib.pyplot as plt
    plt.plot([1,2,3],[4,5,1])
    plt.show()

    (b)

    import matplotlib.pyplot as plt
    plt.plot([1,2],[4,5])
    plt.show()

    (c)

    import matplotlib.pyplot as plt
    plt.plot([2,3],[5,1])
    plt.show()

    (d)

    import matplotlib.pyplot as plt
    plt.plot([1,3],[4,1])
    plt.show()

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