Quiz on Pointers in C

What is a pointer in C?

Which operator is used to access the address of a variable?

Which operator is used to access the value stored at an address pointed by a pointer?

int a = 5;
int *p = &a;
printf(“%d”, *p);

What type of value does a pointer variable hold?

How do you declare a pointer to an integer in C?

int x = 10;
int *ptr = &x;
x = x + 1;
printf(“%d”, *ptr);

What happens if you use an uninitialized pointer?

Which format specifier is used to print the address stored in a pointer?

What is a NULL pointer?