What is a pointer in C?

Module4LECMT7

Quiz
•
Science
•
University
•
Medium
Armilyn Martinez
Used 3+ times
FREE Resource
40 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A function that points to memory.
A variable that stores an address of another variable.
A constant memory location.
A variable that can only store integers.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which operator is used to retrieve the address of a variable?
*
&
->
.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the * operator do when used with a pointer?
Declares a pointer variable.
Initializes a pointer.
Dereferences the pointer to access the value stored at the address.
Retrieves the size of a pointer.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a valid pointer declaration?
int *ptr;
int ptr*;
int &ptr;
*int ptr;
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What value does a NULL pointer contain?
-1
1
0
An undefined value
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the size of a void pointer on a 32-bit system?
2 bytes
4 bytes
8 bytes
It depends on the data type it points to.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens if a pointer is not initialized?
It points to the value 0.
It causes a segmentation fault.
It holds a garbage address.
The program will not compile.
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