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What is external and internal variables
What is dynamic memory allocation
what is storage classes in C

Answer Posted / ravi saini

External variable -- Variable that one going to be access
from another source file.Have life cycle for complete project.

Internal variable -- variable that one have the life cycle
for the particular block.

Dynamic memory allocation --Allocation of memory during RUN
time.

Storage Class --

Automatic : by default
Register : Use to access registers of CPU.If register is not
free than work as automatic.
Static : Have life cycle for whole project but access only
with in the initialized function block.Once initialized.
extern : above

Is This Answer Correct ?    11 Yes 1 No



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