New ! Computer Science MCQ Practise Tests



Model 5 Mark Book Back Questions (New Syllabus 2020)

12th Standard

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Computer Science

Time : 01:00:00 Hrs
Total Marks : 85

    Part A

    17 x 5 = 85
  1. Identify in the following program

    let rec gcd a b:=
               if b <> 0 then gcd b (a mod b) else return a:

    i) Name of the function
    ii) Identify the statement which tells it is a recursive function
    iii) Name of the argument variable
    iv) Statement which invoke the function recursively
    v) Statement which terminates the recursion

  2. How will you facilitate data abstraction. Explain it with suitable example.

  3. Write any Five Characteristics of Modules.

  4. What is Binary search? Discuss with example

  5. Describe in detail the procedure Script mode programming.

  6. Write a detail note on if..else..elif statement with suitable example.

  7. Explain the following built-in functions.
    (a) id ()
    (b) chr ()
    (c) round ()
    (d) type ()
    (e) pow ()

  8. Explain about string operators in python with suitable example.

  9. What is nested tuple? Explain with an example.

  10. Write a menu driven program to add or delete stationary items. You should use dictionary to store items and the brand.

  11. Explain the different operators in Relational algebra with suitable examples.

  12. What are the components of SQL? Write the commands in each.

  13. Write the different methods to read a File in Python.

  14. Write a Python program to execute the following c++ coding.
    #include <iostream>
    using namespace std;
    int main()
    { cout<<“WELCOME”;
    return(0);
    }
    The above C++ program is saved in a file welcome.cpp

  15. Write in brief about SQLite and the steps used to use it.

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

  17. Explain the various buttons in a matplotlib window.

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