
Array and Pointer Quiz

Quiz
•
Information Technology (IT)
•
University
•
Medium
PRIYADHARSHNI S
Used 2+ times
FREE Resource
41 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
You are writing a program to store some scores in an array. You want to print the third score stored. int arr[] = {1, 2, 3, 4}; printf("%d", arr[2]); What is the output?
1
2
3
4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
You have two arrays representing sensor readings. You want to calculate the sum of the first and last values in one of these arrays. int arr[] = {5, 6, 7}; printf("%d", arr[0] + arr[2]); What is the output?
5
6
7
12
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
You partially initialize an array and want to print the first and last elements of it. int arr[4] = {1}; printf("%d %d", arr[0], arr[3]); What is the output?
1 1
1 0
0 1
0 0
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a loop, you print all elements of an integer array initialized with three values. int arr[3] = {10, 20, 30}; for(int i = 0; i < 3; i++) printf("%d ", arr[i]); What does this print?
10 20 30
20 30 10
30 20 10
10 30 20
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
You store characters in a char array intending it to be a string and then print it. char arr[] = {'a', 'b', 'c', '\0'}; printf("%s", arr); What does this output?
abc
a
ab
Error
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
You use pointer arithmetic to access the second element of an integer array. int arr[3] = {1, 2, 3}; printf("%d", *(arr + 1)); What is the output?
1
2
3
Garbage value
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
You are confused about pointer dereferencing and arithmetic. You print *arr + 1 on an integer array. int arr[3] = {1, 2, 3}; printf("%d", *arr + 1); What is the output?
0
1
2
3
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