Arrays - 1 - GATE CSE (CSE) Programming and Data Structures Free MCQ Test

Test: Arrays - 1 - Question 1

How do you initialize an array in C?

A.
int arr[3] = (1,2,3);
B.
int arr(3) = {1,2,3};
C.
int arr[3] = {1,2,3};
D.
int arr(3) = (1,2,3);

Detailed Solution: Question 1

This is the syntax to initialize an array in C.

Test: Arrays - 1 - Question 2

Which of the following is the correct way to declare a multidimensional array in Java?

A.
int[] arr;
B.
int arr[[]];
C.
int[][]arr;
D.
int[[]] arr;

Detailed Solution: Question 2

The syntax to declare multidimensional array in java is either int[][] arr; or int arr[][];

Join for Free

Test: Arrays - 1 - Question 3

LB are UB are lower bound and upper bound of a linear array LA. Consider following algorithm -
Repeat for K = LB to UB apply PROCESS to LA [K]
Exit
The algorithm ______ the array LA.

A.
sorts
B.
traverses
C.
merges
D.
searches

Detailed Solution: Question 3

LB refers to the lower bound of an array ( first index element of an array ) and UB refers to the upper bound of an array, that is the last index of an array.

Let's take an example to understand this -
Array - [2,6,7,0,15], where 2 is the lower bound and 15 is the upper bound element.

The K is the variable that holds the index of the array. While the LA is the name of the array. A loop is used to visit to traverse the elements from LB to UB.

The K holds the index of element 2 which is 0 and reaches index 4 of element 15.

The LA array using K traverse all the elements in the array. So, Option 2 will be the answer.

Test: Arrays - 1 - Question 4

In C, how do you properly initialise an array?

A.
int arr{}={11,12,15,16,19}
B.
int arr()={11,12,15,16,19}
C.
int arr{5}={11,12,15,16,19}
D.
int arr[5]={11,12,15,16,19}

Detailed Solution: Question 4

Array:
An array is a group of data components that are stored in the same memory region at the same time. It is the most basic data structure, in which each data piece may be retrieved simply by its index number alone.

Array initialize:
Only square brackets [ ] must be used for declaring an array. The given {}, () are not useful for array initialization.
int arr[5]={11,12,15,16,19} is correct.
The above statement can store the 5 elements in a continuous manner. consider the array base address is 100.

Hence the correct answer is int arr[5]={11,12,15,16,19}.

Test: Arrays - 1 - Question 5

What is the output of the following Java code?
public class array
{
   public static void main(String args[])
   {
       int []arr = {1,2,3,4,5};
       System.out.println(arr[5]);
   }
}

A.
4
B.
5
C.
ArrayIndexOutOfBoundsException
D.
InavlidInputException

Detailed Solution: Question 5

Trying to access an element beyond the limits of an array gives ArrayIndexOutOfBoundsException.

Test: Arrays - 1 - Question 6

Which of the following concepts make extensive use of arrays?

A.
Binary trees
B.
Scheduling of processes
C.
Caching
D.
Spatial locality

Detailed Solution: Question 6

Whenever a particular memory location is referred to, it is likely that the locations nearby are also referred, arrays are stored as contiguous blocks in memory, so if you want to access array elements, spatial locality makes it to access quickly.

Test: Arrays - 1 - Question 7

Consider the following array declaration in ‘C’ language:
int array[] = {2, 3, 4, 5};
What will be the output of the following statement?
printf("%d", array[2]);

A.
4
B.
3
C.
2
D.
5

Detailed Solution: Question 7

An array is defined as the collection of similar types of data items stored at contiguous memory locations. Arrays are the derived data type in C programming language which can store the primitive type of data such as int, char, double, float, etc. C array is beneficial if you have to store similar elements.

int array[] = {2, 3, 4, 5}; This array storage be like,

The above array at index I can be accessed by, a[i], i[a], *(a+i) or *(i+a) all the above representations all are equal and gives the i th index value.

printf(%d', 2[array]); So, it gives the 2nd index value. i.e 4.

Hence the correct answer is 4.

Test: Arrays - 1 - Question 8

Consider the following declaration of an array in ‘C’ language:
int A[6] = {1, 2, 3, 5};
Which of the following statements is true?

A.
Both A[2] and 2[A] represent the value 2.
B.
Both A[2] and 2[A] represent the value 3
C.
A[2] is the correct way to access an element of A, but 2[A] will give an error
D.
The last two elements of the array A are 3 and 5

Detailed Solution: Question 8

Array name: A

To access 3rd element in an array A[2] or 2[A] is used. Therefore Both A[2] and 2[A] represent the value 3

Test: Arrays - 1 - Question 9

What are the disadvantages of arrays?

A.
Data structure like queue or stack cannot be implemented
B.
There are chances of wastage of memory space if elements inserted in an array are lesser than the allocated size
C.
Index value of an array can be negative
D.
Elements are sequentially accessed

Detailed Solution: Question 9

Arrays are of fixed size. If we insert elements less than the allocated size, unoccupied positions can’t be used again. Wastage will occur in memory.

Test: Arrays - 1 - Question 10

Find the number of elements in the following array.
char si [] = "India is great";

A.
3
B.
5
C.
15
D.
12

Detailed Solution: Question 10

char si [] = "India is great";

The above declaration is a dynamic allocation of array name si of character datatype.

Hence the correct answer is 15.

	Programming and Data Structures 161 docs\|30 tests

Information about Test: Arrays - 1 Page

In this test you can find the Exam questions for Test: Arrays - 1 solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Arrays - 1, EduRev gives you an ample number of Online tests for practice

Arrays - 1 - Free MCQ Practice Test with solutions, GATE CSE (CSE) Programming

MCQ Practice Test & Solutions: Test: Arrays - 1 (10 Questions)

How do you initialize an array in C?

Which of the following is the correct way to declare a multidimensional array in Java?

LB are UB are lower bound and upper bound of a linear array LA. Consider following algorithm -
Repeat for K = LB to UB apply PROCESS to LA [K]
Exit
The algorithm ______ the array LA.

In C, how do you properly initialise an array?

What is the output of the following Java code?
public class array
{
   public static void main(String args[])
   {
       int []arr = {1,2,3,4,5};
       System.out.println(arr[5]);
   }
}

Which of the following concepts make extensive use of arrays?

Consider the following array declaration in ‘C’ language:
int array[] = {2, 3, 4, 5};
What will be the output of the following statement?
printf("%d", array[2]);

Consider the following declaration of an array in ‘C’ language:
int A[6] = {1, 2, 3, 5};
Which of the following statements is true?

What are the disadvantages of arrays?

Find the number of elements in the following array.
char si [] = "India is great";

Programming and Data Structures

Programming and Data Structures

Top Courses for Computer Science Engineering (CSE)

About this Computer Science Engineering (CSE) Practice Test

Explore more Computer Science Engineering (CSE) Study Resources

Arrays - 1 - Free MCQ Practice Test with solutions, GATE CSE (CSE) Programming

MCQ Practice Test & Solutions: Test: Arrays - 1 (10 Questions)

How do you initialize an array in C?

Which of the following is the correct way to declare a multidimensional array in Java?

LB are UB are lower bound and upper bound of a linear array LA. Consider following algorithm -Repeat for K = LB to UB apply PROCESS to LA [K]ExitThe algorithm ______ the array LA.

In C, how do you properly initialise an array?

What is the output of the following Java code?public class array { public static void main(String args[]) { int []arr = {1,2,3,4,5}; System.out.println(arr[5]); } }

Which of the following concepts make extensive use of arrays?

Consider the following array declaration in ‘C’ language:int array[] = {2, 3, 4, 5};What will be the output of the following statement?printf("%d", array[2]);

Consider the following declaration of an array in ‘C’ language:int A[6] = {1, 2, 3, 5};Which of the following statements is true?

What are the disadvantages of arrays?

Find the number of elements in the following array.char si [] = "India is great";

Programming and Data Structures

Programming and Data Structures

Top Courses for Computer Science Engineering (CSE)

About this Computer Science Engineering (CSE) Practice Test

Explore more Computer Science Engineering (CSE) Study Resources

LB are UB are lower bound and upper bound of a linear array LA. Consider following algorithm -
Repeat for K = LB to UB apply PROCESS to LA [K]
Exit
The algorithm ______ the array LA.

What is the output of the following Java code?
public class array
{
public static void main(String args[])
{
int []arr = {1,2,3,4,5};
System.out.println(arr[5]);
}
}

Consider the following array declaration in ‘C’ language:
int array[] = {2, 3, 4, 5};
What will be the output of the following statement?
printf("%d", array[2]);

Consider the following declaration of an array in ‘C’ language:
int A[6] = {1, 2, 3, 5};
Which of the following statements is true?

Find the number of elements in the following array.
char si [] = "India is great";