In Static Memory Allocation the memory for your data is allocated when the program starts. The size is fixed when the program is created. It applies to global variables, file scope variables, and variables qualified with static defined inside functions. This memory allocation is fixed and cannot be changed, i.e. increased or decreased after allocation. So, exact memory requirements must be known in advance.
Key features:
Variables get allocated permanently
Allocation is done before program execution
It uses the data structure called stack for implementing static allocation
Less efficient
There is no memory reusability
