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12th Standard English Medium Computer Science Reduced syllabus Public Exam Model Question Paper - 2021

12th Standard

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Computer Science

Time : 02:45:00 Hrs
Total Marks : 70

        Part I

        Answer all the questions.

        Choose the most suitable answer from the given four alternatives and write the option code with the corresponding answer.


    15 x 1 = 15
  1. Which of the following defines what an object can do?

    (a)

    Operating System

    (b)

    Compiler

    (c)

    Interface

    (d)

    Interpreter

  2. Which of the following functions that build the abstract data type ?

    (a)

    Constructors

    (b)

    Destructors

    (c)

    recursive

    (d)

    Nested

  3. Bundling two values together into one can be considered as

    (a)

    Pair

    (b)

    Triplet

    (c)

    single

    (d)

    quadrat

  4. From the following sorting algorithms which algorithm needs the minimum number of swaps?

    (a)

    Bubble sort

    (b)

    Quick sort

    (c)

    Merge sort

    (d)

    Selection sort

  5. The complexity of linear search algorithm is

    (a)

    O(n)

    (b)

    O(log n)

    (c)

    O(n2)

    (d)

    O(n log n)

  6. _________is used to describe the lower bound of asymptotic function.

    (a)

    Big Alpha

    (b)

    Big Beta

    (c)

    Big 0

    (d)

    Big Omega

  7. Which operator is also called as Conditional operator?

    (a)

    Ternary

    (b)

    Relational

    (c)

    Logical

    (d)

    Assignment

  8. Which is the most comfortable loop?

    (a)

    do..while

    (b)

    while

    (c)

    for

    (d)

    if..elif

  9. Which punctuation should be used in the blank?
    if < condition > ____
           statements-block 1
    else:
            statements-block 2

    (a)

    ";"

    (b)

    "::"

    (c)

    "!"

    (d)

    ":"

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

    (a)

    Required

    (b)

    Keyword

    (c)

    Default

    (d)

    Variable-length

  11. What is the use of type() function in python?

    (a)

    To create a Tuple

    (b)

    To know the type of an element in tuple.

    (c)

    To know the data type of python object

    (d)

    To create a list.

  12. A private class variable is prefixed with

    (a)

    __

    (b)

    &&

    (c)

    ##

    (d)

    **

  13. A table is known as

    (a)

    tuple

    (b)

    attribute

    (c)

    relation

    (d)

    entity

  14. A tuple is also known as

    (a)

    table

    (b)

    row

    (c)

    attribute

    (d)

    field

  15. Which of the following creates an object which maps data to a dictionary?

    (a)

    listreader()

    (b)

    reader()

    (c)

    tuplereader()

    (d)

    DicReader ()

    1. Part II

      Answer any six questions. Question no. 21 is compulsory.


    6 x 2 = 12
  16. Give an example of function definition parameter without type.

  17. Give an example of pure function

  18. Write the expansion of (i) SWIG (ii) MinGW

  19. Mention the users who uses the Database.

  20. Write the command to populate record in a table. Give an example.

  21. List the types of Visualizations in Matplotlib.

  22. Write the output of the following program
    a:=10
     Disp():
     a:=7
     print a
    Disp 1():
    print a

  23. Write the output of the following program
     Disp()
      a:=10
     Disp 1():
             print a
     Disp 1():
     print a
    Disp()
     

    1. Part III

      Answer any six questions. Question no. 26 is compulsory.


    6 x 3 = 18
  24. Explain the syntax of function definitions

  25. Write a short note an syntax for function types.

  26. Write a note on module

  27. Write a short note on types of variable scope.

  28. Write a short note on comment statement.

  29. Explain how will you use global and local variable with same name.

  30. Write the different factors in which the time efficiency of an algorithm its measured

  31. Write a pseudo code for linear search

    1. Part IV

      Answer all the Questions.

    10 x 5 = 50
    1. What are called Parameters and write a note on
      (i) Parameter without Type
      (ii) Parameter with Type

    2. Write any five benefits in using modular programming.

    1. Explain the Bubble sort algorithm with example

    2. Write a program to display multiplication table for a given number.

    1. Explain Jump statement in python.

    2. Write a Python code to find the L.C.M. of two numbers.

    1. Write a program to create a list of numbers in the range 1 to 10. Then delete all the even numbers from the list and print the final list.

    2. Write the different types of constraints and their functions.

    1. What is the purpose of sys,os,getopt module in Python.Explain

    2. hat is the use of HAVING clause. Give an example python script

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