6. A state of an object may contain ____

A. primitive data type only 

B. object of another class 

C. A or B 

D. A and B 

7. Stream cerr is used for handling __________

A. buffered error messages 

B. unbuffered error messages 

C. all kinds of error messages 

D. None of the above 

8. Which of the following statements are true regarding files and modes?

A. The ios::ate allows us to write data anywhere in the file 

B. We can add data to an existing file by opening it in the append mode 

C. ios::out opens file for reading as well as writing to the file 

D. All of the above 

9. C++ declaration int func(); with respect to arguments means

A. arguments number is unspecified 

B. exactly zero arguments 

C. no need for arguments 

D. can take int type arguments 

10. The associative container stores

A. alphabetic or numerically stored values 

B. keys in sorted order 

C. iterators in sorted order 

D. none of the above 

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