Sample C Programming Quiz Questions on Arrays.

Sno	Question	Option 1	Option 2	Option 3	Option 4	Answer
1.	Which of the following correctly declares an array?	int array[10];	int array;	array{10};	array array[10];	1
2.	What is the index number of the last element of an array with 29 elements?	29	28	0	Programmer-defined	2
3.	Which of the following is a two-dimensional array?	array array[20][20];	int array[20][20];	int array[20, 20];	char array[20];	2
4.	Which of the following correctly accesses the seventh element stored in array N with 100 elements?	N[6];	N[7];	N(7);	N;	1
5.	What is right way to Initialize an array?	int num[6] = { 2, 4, 12, 5, 45, 5 };	int n{} = { 2, 4, 12, 5, 45, 5 };	int n{6} = { 2, 4, 12 };	int n(6) = { 2, 4, 12, 5, 45, 5 };	1
6.	Array elements are always stored in ________ memory locations.	Sequential	Random	Sequential and Random	None of the above	1
7.	What is the maximum number of dimensions an array in C may have?	Two	Three	Theoretically no limit. The only practical limits are memory size and compilers	None of the above.	3
8.	What character ends all strings?	‘.'	' '	'\0'	'\n'	3
9.	What is an Array?	An array is a collection of variables of dissimilar data type	An array is a collection of variables of similar data type	An array is not a collection of variables of similar data type	None of the above	2
10.	The index or subscript value for an array of size ‘n’ ranges from	0 to n	1 to n-1	0 to n-1	None of the above	3
11.	int val[2][4]={1,2,3,4,5,6,7,8 }; What is the index of value 4 ?	val[1][4]	val [0] [3]	val[1][1]	val[0][4]	2
12.	The header file that must be included at the beginning of a C program to use a library function strlen() is	math.h	stdio.h	conio.h	string.h	4
13.	If the two strings are identical, then strcmp() function returns	1	0	-1	None of the above	2
14.	Which of the following functions compares two strings?	compare();	stringcompare();	cmp();	strcmp();	4
15.	The library function used to reverse a string is	rev()	reverse()	stringreverse()	strrev()	4
16.	The memory address of the first element of an array is called	floor address	foundation address	first address	base address	4
17.	Which of the following function is more appropriate for reading in a multi-word string?	scanf()	gets()	printf()	puts()	2
18.	int a[5] = {1,2,3} What is the value of a[4]?	3	1	0	Garbage value	3
19.	String concatenation means	combining two strings	extracting a substring out ofa string	copying a string into another string	comparing the strings	1
20.	Assuming int is of 4bytes, what is the size of int arr[15];?	15	19	11	60	4
21.	How will you print "ECE" on the screen?	printf("ECE");	printf(""ECE"");	printf("\"ECE\"");	printf(ECE);	3
22.	Smallest element of an array is called as	upper bound	lower bound	middle bound	index	2
23.	strcpy(s1,s2)	s1 source, s2 destination	s1 destination, s2 source	s1 copied to s2	None of the given	2
24.	void main() { int a[5]={5,1,15,20,25}; inti,j,m; i=++a[1]; j=a[1]++; m=a[i++]; printf("%d,%d,%d",i,j,m); }	3,2,15	2,3,20	2,1,15	1,2,5	1
25.	void main() { float arr[]={12.4,2.3,4.5,6.7}; printf("%d",sizeof(arr)/sizeof(arr[0])); }	5	4	6	7	2
26.	Array is an example of _______ type memory allocation.	static memory	dynamic memory	1 and 2	none	1
27.	String is ______	collection of characters	character array	1 and 2	none	3
28.	int a=10, b=20; a=a+b; a=a-b; b=a-b; printf("%d,%d",a,b);	10,20	20,10	10,10	20,20	2
29.	What is the string termination character?	\0	-1	NULL	null	1
30.	if(strcmp("lbrce","lbrce")) printf("equal"); else printf("not equal");	equal	not equal	equal not equal	error	2