What is the output of this program? #include &nbs | C++ Questions & Answers

Q:

Which of the following type of data member can be shared by all instances of its class?

A) Public	B) Inherited
C) Static	D) None

Answer & Explanation Answer: C) Static

Explanation:

Static members are shared by all the instances of the class

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Q:

Where is the reference stored?

A) stack	B) heap
C) queue	D) None

Answer & Explanation Answer: A) stack

Explanation:

Referencee is stored in stack

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Q:

Default constructor accepts how many arguments?

A) one	B) two
C) three	D) None

Answer & Explanation Answer: D) None

Explanation:

Default constructors has no arguments

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Q:

What could be the bucket size if collision and overlapping occur at same time?

A) 2	B) 0
C) 1	D) 4

Answer & Explanation Answer: C) 1

Explanation:

One. If there is only one entry possible in the bucket, when the collision occurs, there is no way to accommodate the colliding value. This results in the overlapping of values

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Q:

In an AVL tree the balancing is to be done when the pivotal value is in range of

A) greater than 1 and less than -1	B) greater than -1 and less than 1
C) greater than 1	D) less than -1

Answer & Explanation Answer: A) greater than 1 and less than -1

Explanation:

Difference between the heights of left and Right subtrees in an AVL tree can never be greater than +1

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Q:

In tree construction which is the suitable efficient data structure?

A) Array	B) Linked list
C) Stack	D) Queue

Answer & Explanation Answer: B) Linked list

Explanation:

Linked list is the efficient datastructure in tree construction

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Q:

What are the methods are available in storing sequential files?

A) Natural merging	B) Polyphase sort
C) Distribution of Initial runs	D) All the above

Answer & Explanation Answer: D) All the above

Explanation:

ll the above listed methods are used in storing sequential files

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Q:

A binary tree with 7 nodes will have how many null branches?

A) 6	B) 7
C) 8	D) 5

A) 252	B) 253
C) 254	D) 262

What is the output of this program? #include using namespace std; struct sec { int a; char b; }; int main() { struct sec s ={25,50}; struct sec *ps =(struct sec *)&s; cout << ps->a << ps->b; return 0; }

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What is the output of this program?

#include
using namespace std;
struct sec {
int a;
char b;
};
int main()
{
struct sec s ={25,50};
struct sec ps =(struct sec )&s;
cout << ps->a << ps->b;
return 0;
}