C++ Interview Questions - 7

1. What will happen when introduce the interface of classes in a run-time polymorphic hierarchy?

A. Steve jo

B. Steve jobs

C. Steve

D. None of the mentioned

Correct Answer is : Steve

2. Which classes are called as mixin?

A. Returns a different value

B. They are same

C. Returns a different value but they are same

D. None of the mentioned

Correct Answer is : They are same

3. What is the use of clog?

A. 1

B. 2

C. 1 or 2

D. 2

Correct Answer is : 1 or 2

4. How many types of guarantees are there in exception class can have?

A. 1

B. 2

C. 3

D. 4

Correct Answer is : 3

5. Which operator is used to create the user-defined streams in c++?

A. bitset b;

B. bitset b(12);

C. bitset b(string(“1100”));

D. all of the mentioned

Correct Answer is : all of the mentioned

6. What does the cerr represent?

A. bitset b;

B. bitset b(12);

C. bitset b(string(“1100”));

D. bitset b(float(12));

Correct Answer is : bitset b(12);

7. What is the class relationship?

A. bitset b;

B. bitset b(12);

C. bitset b(string(“1100”));

D. bitset b(float(12));

Correct Answer is : bitset b(string(“1100”));

8. How many types of class relationships are there?

A. All bits are 0

B. All bits are 1

C. Leftmost bit is 0

D. Rightmost bit is 0

Correct Answer is : All bits are 0

9. Which type of relationship is modelled by Inheritance?

A.

B.

C.

D.

Correct Answer is :

10. How the relationship is made in Association?

A. 1111

B. 1111

C. 11110000

D. 1111

Correct Answer is : 1111

11. How many types of Association can be there between classes?

A. 1111

B. Compile-time error

C. 11110000

D. Run-time error

Correct Answer is : Run-time error

12. Why do we need relationships between classes?

A. leftmost bit

B. rightmost bit

C. same as in an array

D. front

Correct Answer is : rightmost bit

13. Composition is also a type of _______________ relationship.

A. To count the number of 0’s

B. To count the number of 1’s

C. To count the number of total bits in a bitset

D. To count the number of low bits

Correct Answer is : To count the number of 1’s

14. Which type of relationship is modelled by Composition?

A. To count the number of 0’s

B. To count the number of 1’s

C. To count the number of total bits used by bitset variable

D. To count the number of low bits

Correct Answer is : To count the number of total bits used by bitset variable

15. Which type of relationship is modelled by Aggregation?

A. 1

B. 0

C. 10

D. 11

Correct Answer is : 1

16. Which of the following relationships is uni-directional?

A. Returns true if the number of 1’s equal to the number of 0’s

B. Returns true if any bit is set 0

C. Returns true if any bit is set 1

D. Returns true only if all bits are 1

Correct Answer is : Returns true if any bit is set 1

17. In which of the following relationship objects of related classes can occur independently?

A. Returns true if any bits is set 1

B. Returns true if all bits is set 0

C. Returns true if the number of 1’s equal to the number of 0’s

D. Returns true only if all bits are 1

Correct Answer is : Returns true if all bits is set 0

18. In which of the following relationship objects of related classes are strongly dependent?

A. 1

B. 0

C. 10

D. 11

Correct Answer is : 1

19. Composition is a __________ type of Association relationship.

A. Used to make alternate bits zero

B. Used to make a bit 0 in a bitset

C. Used to make all bits zero

D. Used to set bit(s) in a bitset

Correct Answer is : Used to set bit(s) in a bitset

20. Aggregation is a __________ type of Association relationship.

A. All alternate bits are set to 1 in a bitset

B. All bits are set to 0 in a bitset

C. All bits are set to 1 in a bitset

D. First bit is set to 1

Correct Answer is : All bits are set to 1 in a bitset

C++ interview questions part 7

C++ interview questions part 7

Take as many assements as you can to improve your validate your skill rating

Total Questions: 20

1. What will happen when introduce the interface of classes in a run-time polymorphic hierarchy?

2. Which classes are called as mixin?

3. What is the use of clog?

4. How many types of guarantees are there in exception class can have?

5. Which operator is used to create the user-defined streams in c++?

6. What does the cerr represent?

7. What is the class relationship?

8. How many types of class relationships are there?

9. Which type of relationship is modelled by Inheritance?

10. How the relationship is made in Association?

11. How many types of Association can be there between classes?

12. Why do we need relationships between classes?

13. Composition is also a type of _______________ relationship.

14. Which type of relationship is modelled by Composition?

15. Which type of relationship is modelled by Aggregation?

16. Which of the following relationships is uni-directional?

17. In which of the following relationship objects of related classes can occur independently?

18. In which of the following relationship objects of related classes are strongly dependent?

19. Composition is a __________ type of Association relationship.

20. Aggregation is a __________ type of Association relationship.

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