What do all STL containers define?

Iterator types
Begin methods
End methods
All of the mentioned
What do we return if we use simple array on a internal container?

Methods
Pointers
Objects
None of the mentioned
What is mandatory for designing a new container?

Classes
Iterators
Container
None of the mentioned
How many iterators are needed for the defining a new container?

1
2
3
4
How many types of container classes are there in c++?

1
2
3
As many as possible
What is the use of the allocater interface in the user-defined container?

Storage management
Memory management
Both a & b
None of the mentioned
What is the name of the container which contains group of multiple objects?

Heterogeneous container
Homogeneous container
Both a & b
None of the mentioned
What are the design requirements for building a container from the sratch?

Container interface requirements
Allocator interface requirements
Iterator requirements.
All of the mentioned
What is the output of this program?
  1.     #include 
  2.     #include 
  3.     #include 
  4.     using namespace std;
  5.     int main() 
  6.     {
  7.         string s = "spaces in text";
  8.         s.erase(remove(s.begin(), s.end(), ' ' ), s.end() ) ;
  9.         cout << s << endl;
  10.     }

spaces
spaces in
spaces in text
spacesintext
What is the output of this program?
  1.     #include  
  2.     #include 
  3.     #include 
  4.     #include 
  5.     using namespace std;
  6.     int square(int i) { return i * i; }
  7.     int main()
  8.     {
  9.         vector<int> V, V2;
  10.         V.push_back(0);
  11.         V.push_back(1);
  12.         V.push_back(2);
  13.         transform(V.begin(), V.end(), back_inserter(V2), square);
  14.         copy(V2.begin(), V2.end(), ostream_iterator<int>(cout, " "));
  15.         cout << endl;
  16.     }

0
1
2
0 1 4