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12th Standard English Medium Computer Science Subject Creative 3 Mark Questions with Solution Part - II

12th Standard

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Computer Science

Time : 01:00:00 Hrs
Total Marks : 75

    3 Marks

    25 x 3 = 75
  1. Write a note on module.

  2. Write a note on access modifiers of a class.

  3. Write a note on time/space trade off

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

  5. What is dynamic programming? What are the steps involved in dynamic programming?

  6. Fill up the blanks to get the following output from Python code given.
    Output:
    Enter Number 1: 34
    Enter Number 2: 70
    The Sum = 104
    Code:
    X = \(\overset { (1) }{ \_ \_ \_ \_ \_ } \) (input ("Enter Number 1:"))
    Y = \(\overset { (2) }{ \_ \_ \_ \_ \_ } \) (\(\overset { (3) }{ \_ \_ \_ \_ \_ } \) ("Enter Number 2 :"))
    \(\overset { (4) }{ \_ \_ \_ \_ \_ } \) ("The sum =", \(\overset { (5) }{ \_ \_ \_ \_ \_ } \))

  7. How will you define program blocks in python?

  8. Fill in the blanks.
    (i) _____ statements are ignored by Python interpreter.
    (ii) The value of an operator used is called _______
    (iii) 100/30 = ______

  9. Write a note on simple if statement with an example.

  10. Write a program in python that illustrate the use of 'in' and 'not in' if statement.

  11. What will be the range of values displayed by the following?

  12. What will be output of the following program?

  13. Write a note on (i) min (), (ii) max (), (iii) sum ().

  14. Write the usage of the following format string characters.
    (i) % c
    (ii) % d (or) % i
    (iii) % s

  15. What is the output of the following code?
    (i) list = [34, 45, 48]
    print (list.append (80))
    (ii) list = [34, 45, 48]
    print (list.extend (80, 90))
    (iii) list = [34, 98, 47, 55]
    list.insert (3, 90)
    print (list)

  16. Write the output for the following.
    list = [36, 12, 12]
    (I) print (list. count (12))
    (ii) print (list. index (12))
    (iii) print (list. reverse ())

  17. Differentiate list and tuple.

  18. Fill up the blanks in the following.
    (i) Diet = {'Roll No' : 12001, 'SName': 'Meena', 'Mark1': 98, 'Marl2' : 86}
    print("Dietionary elements before deletion: \n", Diet)
    del Diet['Mark1] # __________
    (ii) print("Dietionary elements after deletion of a element: \n", Diet)
    Dict.clear()# ___________
    (iii) print("Dietionary after deletion of all elements: \n", Diet) del Diet
    print(Diet) # ____________

  19. Write a note on object.

  20. Write a python program to find total and average marks using class.

  21. Write the output of the following program.
    class Sample:
    num=0
    def _init_(self, var):
    Sample.num+=1
    self. var=var
    print("The object value is = ", var)
    print("The count of object created Sample.num) =",
    S1=Sample(15)
    S2=Sample(35)
    S3=Sample(45)

  22. Read the following program. Answer the following question. Class sample:
    x, y= 10, 20
    s= sample ()
    print (s. x + s. y)
    1. What does sample denotes?
    2. What does x, y denotes?
    3. What does s denotes?

  23. Write a note on DBMS or write a note on a software that allows us to create, define and manipulate database.

  24. List the components of DBMS

  25. What is Relational Algebra?

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