ANSI C Std
POSIX Standards
UNIX
X/OPEN
C++
100

memory pointed by it is deallocated in the middle of a program

Null Pointer

100

gives standard for base operating system API

POSIX.1

100

interprets the commands and submits for execution

Shell

100

An instance of the class

object

200

pointer that doesn’t point to a valid memory location

Dangling Pointer

200

short cut to the file or directory

soft link

200

A class with at least one pure virtual function

Abstract class

300

gives standard APIs for real time operating system interface including IPC

POSIX.1b

300

standards for open architecture systems

x/open

300

Defining several functions with the same name with unique list of parameters is called as function overloading.

Function overloading

400

a variable whose lifetime doesn’t end with a function call where it is declared

Static Variable

400

Which program is responsible to bring the login prompt

Login Program

400

member function of the class which is having the same as the class name and gets executed automatically as soon as the object for the respective class is created

constructor

500

specifies multi thread programming interface

Posix.1c

500

A class containing at least one member variable of another class type in it

Container class