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Welcome to the Arrays and Pointers MCQs Page

Dive deep into the fascinating world of Arrays and Pointers with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Arrays and Pointers, a crucial aspect of Data Structures and Algorithms. In this section, you will encounter a diverse range of MCQs that cover various aspects of Arrays and Pointers, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Data Structures and Algorithms.

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Check out the MCQs below to embark on an enriching journey through Arrays and Pointers. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Data Structures and Algorithms.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Arrays and Pointers. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Arrays and Pointers MCQs | Page 2 of 15

Explore more Topics under Data Structures and Algorithms

Q11.
The memory address of fifth element of an array can be calculated by the formula

a.

LOC(Array[5]=Base(Array)+w(5-lower bound), where w is the number of words per memory cell for the array

b.

LOC(Array[5])=Base(Array[5])+(5-lower bound), where w is the number of words per memory cell for the array

c.

LOC(Array[5])=Base(Array[4])+(5-Upper bound), where w is the number of words per memory cell for the array

d.

None of above

Discuss
Answer: (a).LOC(Array[5]=Base(Array)+w(5-lower bound), where w is the number of words per memory cell for the array
Q12.
Two dimensional arrays are also called

a.

tables arrays

b.

matrix arrays

c.

both of above

d.

none of above

Discuss
Answer: (c).both of above
Q13.
A variable P is called pointer if

a.

P contains the address of an element in DATA

b.

P points to the address of first element in DATA

c.

P can store only memory addresses

d.

P contain the DATA and the address of DATA

Discuss
Answer: (a).P contains the address of an element in DATA
Q14.
What is right way to Initialize array?

a.

int num[6] = { 2, 4, 12, 5, 45, 5 };

b.

int n{} = { 2, 4, 12, 5, 45, 5 };

c.

int n{6} = { 2, 4, 12 };

d.

int n(6) = { 2, 4, 12, 5, 45, 5 };

Discuss
Answer: (a).int num[6] = { 2, 4, 12, 5, 45, 5 };
Q15.
An array elements are always stored in ________ memory locations.

a.

Sequential

b.

Random

c.

Sequential and Random

d.

None of the above

Discuss
Answer: (a).Sequential
Q16.
Size of the array need not be specified, when

a.

Initialization is a part of definition

b.

It is a declaratrion

c.

It is a formal parameter

d.

All of these

Discuss
Answer: (d). All of these
Q17.
What does the following declaration mean?

int (*ptr)[10];

a.

ptr is array of pointers to 10 integers

b.

ptr is a pointer to an array of 10 integers

c.

ptr is an array of 10 integers

d.

ptr is an pointer to array

Discuss
Answer: (b).ptr is a pointer to an array of 10 integers
Q18.
Array passed as an argument to a function is interpreted as

a.

Address of the array.

b.

Values of the first elements of the array.

c.

Address of the first element of the array.

d.

Number of element of the array.

Discuss
Answer: (c).Address of the first element of the array.
Q19.
Which of the following correctly accesses the seventh element stored in arr, an array with 100 elements?

a.

arr[6]

b.

arr[7]

c.

arr{6}

d.

arr{7}

Discuss
Answer: (a).arr[6]
Q20.
The smallest element of an array’s index is called its

a.

lower bound

b.

upper bound

c.

range

d.

extraction

Discuss
Answer: (a).lower bound
Page 2 of 15

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