Answer:
The correct answer for the given question is option(a) i.e Local - within that function
.
Explanation:
The variable which is declared inside any function are called as local variable The scope and lifetime of local variable is inside that block or function only.
They cannot access outside the function.
Following are the example of local variable
#include <stdio.h> // header file
void fun(); // function prototype
int main()// main function
{
fun(); //calling function
print("%d",t); // it gives error because t is local variable cannot access in main function
return 0;
}
void fun()
{
int t=9;// local variable
printf("t is local variable which value is:");
printf("%d",t);
}
As we seen that t cannot access outside the function .So correct answer is option(a)
Answer:C) Uninterruptible power supply
Explanation:Uninterruptible power supply(UPS) is the device that is used when the input source of power does not work or fails and thus it acts as a power supply in the emergency situation.This electronic devices in the protection of the hardware components of computer system etc.
Other option are incorrect because power strips, surge protector and password generator are no the devices that work during the power black out situation.Thus, the correct option is option(C).
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