Arrays and Strings MCQs

Question 1

Which function is used to copy one string to another in C?

Accepted Answer

strcpy

Answer

strcopy

Answer

strcp

Answer

strduplicate

Question 2

How do you access the last element of an array arr with n elements in C?

Accepted Answer

arr[n-1]

Answer

arr[n]

Answer

arr[n+1]

Answer

arr[last]

Question 3

What is the purpose of the fgets function in C?

Accepted Answer

Read a string from the console

Answer

Read a file

Answer

Write to a file

Answer

Write to the console

Question 4

What does the strtok function do in C?

Accepted Answer

Tokenizes a string

Answer

Copies a string

Answer

Compares two strings

Answer

Concatenates two strings

Question 5

How do you declare a two-dimensional integer array in C with 3 rows and 4 columns?

Accepted Answer

int arr[3][4];

Answer

int arr[3,4];

Answer

int[3,4] arr;

Answer

int[4][3] arr;

Question 6

What is the result of the expression strlen("Hello") in C?

Accepted Answer

5

Answer

6

Answer

4

Answer

10

Question 7

Which function is used to find the first occurrence of a character in a string in C?

Accepted Answer

strchr

Answer

strstr

Answer

strfind

Answer

strsearch

Question 8

How do you declare a string in C that can store up to 50 characters?

Accepted Answer

char str[50];

Answer

string str[50];

Answer

char[] str = "50";

Answer

string = 50;

Question 9

What is the purpose of the strncpy function in C?

Accepted Answer

Copy a portion of a string

Answer

Concatenate two strings

Answer

Compare two strings

Answer

Initialize a string