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programming languages Online Quiz - 265

Description: programming languages Online Quiz - 265
Number of Questions: 20
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Tags: programming languages
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Which header file do you need to include to use typecasting?

  1. stdin.h

  2. ctype.h

  3. math.h

  4. None


Correct Option: D

What does the argument count variable store which is paased to main()?

  1. the number of arguments

  2. the number of arguments plus one

  3. the number of arguments minus one

  4. The total size of the argument array


Correct Option: B

Which of the following reads in a string named x with one hundred characters?

  1. cin.getline(x, 100, '\n');

  2. cin.getline(100, x, '\n');

  3. readline(x, 100, '\n');

  4. read(x);


Correct Option: A

Which of the following gives the memory address of a pointer a?

  1. a

  2. *a

  3. &a

  4. address(a)


Correct Option: A

What is the functional difference between myObj *x = new myObj[100]; delete x; and myObj *x = new myObj[100]; delete [] x;

  1. There is none; they both work as expected

  2. They both do nothing.

  3. The first will not invoke all myObj destructors

  4. It would'nt delete all the memory allocated to the objects


Correct Option: C

Can we have a virtual constructor for a class?

  1. True

  2. False


Correct Option: B

What is the outcome of cout<

  1. 16

  2. 17

  3. 16.5

  4. Undefined


Correct Option: A

What does the following do: void afunction(int *x) { x=new int; *x=12; } int main() { int v=10; afunction(&v); cout<

  1. Outputs 12

  2. Outputs 10

  3. Outputs the address of v

  4. Undefined


Correct Option: B

What does the following code do: int c=0; cout<

  1. Undefined

  2. 01

  3. 00

  4. 10


Correct Option: A

Evaluate: int fn(int v) { if(v==1 || v==0) return 1; if(v%2==0) return fn(v/2)+2; else return fn(v-1)+3; } for fn(7);

  1. 10

  2. 11

  3. 1

  4. 0


Correct Option: B

A default value is automatically assigned to the attributes when no other value is specified.

  1. FALSE

  2. TRUE

  3. NOT ALWAYS

  4. NONE OF THESE


Correct Option: B

Which of these are not a kind of complex elements

  1. empty elements

  2. elements that contain only other elements

  3. elements that contain only text

  4. elements that contain only numbers


Correct Option: D

With XML Schemas, the sender can ________ the data in a way that the receiver will understand.

  1. describes

  2. develops

  3. designs

  4. inform


Correct Option: A

One of the greatest strength of XML Schemas is the support for

  1. data types

  2. images

  3. graphics

  4. functions


Correct Option: A

How many indicators are present in Schema ?

  1. 5

  2. 6

  3. 7

  4. 8


Correct Option: C

Restrictions on XML elements are called

  1. cards

  2. decks

  3. facets

  4. faces


Correct Option: C

The syntax for defining an attribute is


Correct Option: B

A simple element is an XML element that can contain only

  1. IMAGE

  2. NUMBER

  3. TEXT

  4. ALL OF THE ABOVE


Correct Option: C

XML Schema became a W3C Recommendation

    1. May 2001
    1. May 2001
    1. May 2000
    1. May 2002

Correct Option: A

With an extensible Schema definition you cannot:

  1. Reuse your Schema in other Schemas

  2. Create your own data types derived from the standard types

  3. Reference multiple schemas in the same document

  4. All the above


Correct Option: D
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