Current Affairs 2021 PDF

To crack any competitive exam like SSC, Railways, Insurance, UPSC, CLAT, Banking, State PSC Exams and other exams it is very important to answer all current affairs questions correctly. Gkseries Updates Current Affairs and Q&A packages in compiled and sorted topic wise to ensure easy accessibility of the information.

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Memory Allocation - Objective type Interview question with answers on C Programming

1 With every use of memory allocation function, what function should be used to release allocated memory which is no longer needed?
A dropmem()
B dealloc()
C release()
D free()

Answer: Option [D]

The library function free() is used to deallocate the memory that is no longer be used. This deallocated memory is dynamically allocated by malloc, calloc and realloc previously.

2 Physically placing the machine instructions and data into main memory is done by
A Linker
B Loader
C Code Generator
D Interpreter

Answer: Option [B]
3 Which header file should be included to use function like malloc() and calloc()?
A memory.h
B stdlib.h
C string.h
D dos.h

Answer: Option [B]

The stdlib.h header file contains malloc(), calloc() and realloc() dynamically allocated array functions.

4 How will you free the allocated memory?
A remove(variable-name);
B free(variable-name);
C delete(variable-name);
D dealloc(variable-name);

Answer: Option [B]
5 Which data structure is used by malloc() for object creation?
A Heap
B Tree
C Stack
D Queue

Answer: Option [A]


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