1
Q:

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;
        }

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

Answer:   A) 252



Explanation:

In this program, We are dividing the values of a and b, printing it.

Subject: C++
Q:

Pick out the correct method in the c++ standard library algorithm.

A) mismatch B) maximum
C) minimum D) None of these
 
Answer & Explanation Answer: A) mismatch

Explanation:

It is a method in the search opertion in standard library algorithms.

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2 4283
Q:

What is mandatory for designing a new container?

A) Classes B) Iterators
C) Container D) None of these
 
Answer & Explanation Answer: B) Iterators

Explanation:
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0 4859
Q:

How many items are presented in the associate container?

A) 2 B) 3
C) 4 D) 5
 
Answer & Explanation Answer: D) 5

Explanation:

There are 5 items presented in the associate container. They are set, multiset, map, multimap and bitset.

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1 3377
Q:

What does the sequence adaptor provide?

A) Insertion B) Deletion
C) Interface to sequence container D) None of thse
 
Answer & Explanation Answer: C) Interface to sequence container

Explanation:
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1 3218
Q:

What do vectors represent?

A) Static arrays B) Dynamic arrays
C) Stack D) Queue
 
Answer & Explanation Answer: B) Dynamic arrays

Explanation:

Vectors are sequence containers representing arrays that can change in size.

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0 5586
Q:

How the member functions in the container can be accessed?

A) Iterator B) Indirect
C) Both a & b D) None of these
 
Answer & Explanation Answer: A) Iterator

Explanation:

The container manages the storage space for its elements and provides member functions to access them, either directly or through iterators which reference objects with similar properties to pointers.

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1 4620
Q:

Which is best for coding the standard libary for c++?

A) no trailing underscores on names B) complex objects are returned by value
C) have a member-swap() D) All of the mentioned
 
Answer & Explanation Answer: D) All of the mentioned

Explanation:
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1 2870
Q:

To which type of class, We can apply RTTI?

A) Encapsulation B) Polymorphic
C) Derived D) None of these
 
Answer & Explanation Answer: B) Polymorphic

Explanation:

RTTI is available only for classes which are polymorphic, which means they have at least one virtual method.

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0 7489