Input and Output, C++

Input and Output

Question: Which two lines set up things so that the libraries with console input and output facilities are available to the c++ program?
A
#include <iostream> using namespace std;

B
#include <conio.h> using namespace std;

C
#include <stdio.h> using namespace std;

D
#include <iostream.h> using namespace std;

Note: Not available
1. Report
Question: How do we check if the file has reached its end?
A
Use if_file_end()

B
Use end_of_file()

C
Use eof()

D
None

Note: Not available
1. Report
Question: Under which of the following circumstances, synchronization takes place?
A
When the file is closed

B
When the buffer is empty

C
Explicitly, with manipulators

D
All

Note: Not available
1. Report

Question: Which two lines set up things so that the libraries with console input and output facilities are available to the c++ program?