Half Yearly Model Question Paper 2019

11th Standard

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Computer Science

Time : 02:30:00 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 one of the following is the main memory?

    (a)

    ROM

    (b)

    RAM

    (c)

    Flash drive

    (d)

    Hard disk

  2. The speed of inkjet printers generally range from _________

    (a)

    1-20 PPM

    (b)

    1-22 PPM

    (c)

    10-20 PPM

    (d)

    11-20 PPM

  3. NOR is a combination of?

    (a)

    NOT(OR)

    (b)

    NOT(AND)

    (c)

    NOT(NOT)

    (d)

    NOT(NOR)

  4. The variables which can store the truth values are called as _______

    (a)

    logical variable

    (b)

    binary valued variable

    (c)

    boolean variables

    (d)

    all of these

  5. Which of the following is a CISC processor?

    (a)

    Intel P6

    (b)

    AMD K6

    (c)

    Pentium III

    (d)

    Pentium IV

  6. Which of the OS not takes their roots from Unix?

    (a)

    iOS

    (b)

    Linux

    (c)

    Mac OS X

    (d)

    Windows

  7. Which of the following statement is used to alter the normal flow of control?

    (a)

    Sequential control flow

    (b)

    Alternative control flow

    (c)

    Iterative control flow

    (d)

    all of these

  8. If C is false just before the loop, the control flows through
    1 SI
    2 while C
    3 S2
    4 S3

    (a)

    S1 ; S3

    (b)

    S 1 ; S2 ; S3

    (c)

    S 1 ; S2 ; S2 ; S3

    (d)

    S 1 ; S2 ; S2 ; S2 ; S3

  9. We wish to cover a chessboard with dominoes, the number of black squares and the number of white squares covered by dominoes, respectively, placing a domino can be modeled by

    (a)

    b:= b + 2

    (b)

    w:= w + 2

    (c)

    b, w := b1+, w1+

    (d)

    b:= w

  10. What was the original name given to C++?

    (a)

    CPP

    (b)

    Advanced C

    (c)

    C with Classes

    (d)

    Class with C

  11. Which function begins the program execution?

    (a)

    isalphat()

    (b)

    isdigitt()

    (c)

    maint()

    (d)

    islower()

  12. How many variables can be defined in the same struct type?

    (a)

    2

    (b)

    4

    (c)

    10

    (d)

    many

  13. Which of the following supports the transitive nature of data?

    (a)

    Inheritance

    (b)

    Encapsulation

    (c)

    Polymorphism

    (d)

    Abstraction

  14. Which of the following means organizing principle of a program?

    (a)

    OPPs

    (b)

    Modules

    (c)

    Sub-routines

    (d)

    Paradigm

  15. What happens when a class with parameterized constructors and having no default constructor is used in a program and we create an object that needs a zero-argument constructor?

    (a)

    Compile-time error

    (b)

    Domain error

    (c)

    Runtime error

    (d)

    Runtime exception

  16. Part II

    Answer any 6 questions. Question no. 24 is compulsory.

    6 x 2 = 12
  17. What is the function of an ALU?

  18. Write the 1's complement number and 2's complement number for the following decimal number: 13

  19. List out different distributions of Linux operating system.

  20. What is the advantage of open source?

  21. How do we refine a statement?

  22. When a condition statement will be executed?

  23. What is recursive problem solving

  24. What do you mean by precedence of operators?

  25. Define OOP.

  26. Part III

    Answer any 6 questions. Question no. 33 is compulsory.

    6 x 3 = 18
  27. Write a note Vaccum tube on.

  28. Expand PROM, EPROM and EEPROM.

  29. Explain the process management algorithms in Operating System

  30. How will you close an application?

  31. Draw a flowchart for alternative control flow.

  32. Evaluate x+= x + ++x; Let x=5;

  33. Write C++ program to sum the numbers from 1 to 10 using for loop.

  34. Write about strupr ( ) function.

  35. Write about objects.

  36. Part IV

    Answer all the questions.

    5 x 5 = 25
    1. Write the advantages and disadvantages of OOPs.

    2. Mention the differences between constructor and destructor

    1. Write a note on case analysis.

    2. Give an example for loop invariant.

    1. Write the specification of an algorithm hypotenuse whose inputs are the lengths of the two shorter sides of a right angled triangle, and the output is the length of the third side.

    2. What are the values of variables m and n after the assignments in line (1) and line (3)?

    1. Explain various types of microprocessors.

    2. Explain the versions of Windows Operating System.

    1. Explain any two input and output devices.

    2. Add 11010102 + 1011012

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30-Nov-2019

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