QUIZ ON : c - ARRAYS

ARRAYS

00:00:00

Question No# : 01 out of 32

Which of the following is the correct way to define a two dimensional array?

A. int a[ ][4];

B. int b[2, 4];

C. int c[2][ ];

D. int d[ ] [ 4] = {{1, 3, 5, 7}, {2, 4, 6, 8}};

Question No# : 02 out of 32

Set of values of the same type, which have a single name followed by an index is called

A. function

B. structure

C. array

D. union

Question No# : 03 out of 32

Which library function is used to find the length of a string in C?

A. strlen()

B. sizeof()

C. length()

D. strlength()

Question No# : 04 out of 32

What is the output of the following code?<pre>int arr[5] = {1, 2, 3, 4, 5}; printf("%d", arr[3]);</pre>

A. 1

B. 2

C. 3

D. 4

Question No# : 05 out of 32

How can you declare an array of 10 floating-point numbers?

A. float arr[10];

B. float arr(10);

C. float arr = [10];

D. array float arr[10];

Question No# : 06 out of 32

Which of the following methods successfully gets the third element of an array named arr.

A. arr[2]

B. arr(2)

C. arr[3]

D. arr[1]

Question No# : 07 out of 32

What will be the output of the following code segment if Hello there is given as input?

char a[20];

scanf("%s", a);

printf("%s", a);

A. Hello there

B. Hello

C. "Hello there"

D. "Hello"

Question No# : 08 out of 32

What will happen if an element is assigned a value to an element of an array whose subscript exceeds the size of the array

A. It will not be allowed, but no error message will be generated

B. Compiler will generate an error message suggesting the same

C. The element will be assigned NULL VALUE.

D. Some other data may be overwritten

Question No# : 09 out of 32

If the two strings are identical, then strcmp() function returns

A. -1

B. 1

C. 0

D. Yes

Question No# : 10 out of 32

What is the effect of the following code?

main() { int a[4] = {25, 16};

printf(“%d %d”, a[0] & a[1], a[1]|a[2]) ; }

A. 16 16

B. Syntax error because of invalid operator symbol

C. 25 16

D. Syntax error because of invalid array initialization

Question No# : 11 out of 32

Which library function is used to find the length of a string in C?

A. strlen()

B. sizeof()

C. length()

D. strlength()

Question No# : 12 out of 32

Which of the following is the correct way to initialize a string in C?

A. char str[] = "Hello";

B. char str = "Hello";

C. string str = "Hello";

D. char str[] = {'H', 'e', 'l', 'l', 'o'};

Question No# : 13 out of 32

Which of the following best describes an array in C?

A. A collection of variables of different data types

B. A collection of elements of the same data type stored in adjacent memory locations

C. A single variable that stores multiple values

D. None of the above

Question No# : 14 out of 32

Which of the following function can be used to find the first occurrence of a given string in another string?

A. strchr( )

B. strrchr( )

C. strstr( )

D. strnset( )

Question No# : 15 out of 32

The value of S[5] in the segment char s[15] = “ MICROPROCESSOR” is

A. P

B. O

C. R

D. None of the above

Question No# : 16 out of 32

How are String represented in memory in C?

A. An array of characters

B. The object of some class

C. Same as other primitive data type

D. Linkedlist of characters

Question No# : 17 out of 32

When we declare an array

A. Compiler declare array name itself as a constant pointer to base address

B. A continuous file is allocated to store the elements value

C. Index of elements is declared automatically

D. All elements are initialized to zero

Question No# : 18 out of 32

What is the index of the first element in a C array?

A. 0

B. 1

C. -1

D. Depends on array size

Question No# : 19 out of 32

Disadvantage of array in C is

A. We can easily access each element

B. It is necessary to declare too many variables

C. It can store only one similar type of data

D. It is difficult to perform sorting operation on it

Question No# : 20 out of 32

What will happen if you try to access an array element out of its bounds in C?

A. Compilation error

B. Program will terminate with an error

C. Undefined behavior

D. Array index will wrap around

Question No# : 21 out of 32

________ is a derived data type.

A. Array

B. INT

C. FLOAT

D. CHAR

Question No# : 22 out of 32

Find output of the following program?

A. Greater

B. Smaller

C. Compile Error

D. 100

Question No# : 23 out of 32

Consider the statement given below:

int a[5] = {1, 2, 3, 4, 5}, *p = a;

Which printf statement will print the value of fourth element of the array?

A. printf("%d ", *(p + 3));

B. printf("%d", p[4]);

C. printf("%d ", a + 3);

D. printf("%d ", *a + 3);

Question No# : 24 out of 32

If the first string and the second string both are identical, then strcmp function returns

A. a value of 0

B. either 1 or 0

C. a value of 1

D. any positive integer

Question No# : 25 out of 32

If array is initialized where it is declared, then mentioning __________ of array is optional.

A. Data type

B. Dimension

C. name

D. Data type and Dimension

Question No# : 26 out of 32

Which of the following is the correct syntax for declaring a 2D array in C?

A. int arr[10][10];

B. int arr[10,10];

C. array int arr[10][10];

D. int arr{10}{10};

Question No# : 27 out of 32

Which of the following correctly accesses the fifth element of an array arr?

A. arr[4]

B. arr(5)

C. arr[5]

D. arr[6]

Question No# : 28 out of 32

The average number of comparison is sequential search is

A. n**2

B. n(n-1)/2

C. n(n+1)/2

D. n+1)/2

Question No# : 29 out of 32

A group of related data that share a common name is

A. Pointer

B. Array

C. Function

D. None of the above

Question No# : 30 out of 32

Till the array elements are not given any specific value, they are supposed to contain all

A. Zero

B. Garbage value

C. One

D. Combination of zero and one

Question No# : 31 out of 32

Which of the following function is more appropriate for reading in a multi-word string?

A. printf();

B. scanf();

C. gets();

D. puts();

Question No# : 32 out of 32

An array is also known as

A. Subscripted variable

B. Collective array

C. Ordinary variable

D. Similar Quantities variable