Computer Knowledge

Data Structures and Algorithms

1,256 Questions

Data Structures and Algorithms form the core of computer science, focusing on arrays, linked lists, trees, and sorting mechanisms. These concepts are essential for solving complex computational problems efficiently. Test takers preparing for technical and administrative IT exams will find these questions highly relevant.

Array OperationsLinked List ApplicationsSorting AlgorithmsTree Data StructuresMultilevel IndexingAlgorithm Time Complexity

Data Structures and Algorithms Questions

Multiple choice

Which of the following does not relate to stacks?

  1. Piles

  2. FIFO lists

  3. LIFO lists

  4. Push

  5. _
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The queue is an abstract data type that obeys a first In first out rule. It is used where elements are processed in the order in which they arrive.

Multiple choice

Use of recursion

  1. enhances logical clarity and reduces code size

  2. makes debugging easier

  3. reduces execution time

  4. makes software bug-free
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Recursion allows complex problems to be expressed in a concise, logical manner by breaking them into smaller instances of the same problem, which often leads to cleaner code.

Multiple choice

Different sorting programs allow different

  1. maximum key sizes

  2. maximum number of sorting keys

  3. both (1) & (2)

  4. none of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sorting programs vary in their capabilities, including the maximum length of keys they can process and the total number of keys allowed for sorting operations.

Multiple choice

Data structure include

  1. arrays

  2. exception statements

  3. iteration

  4. both (2) & (3)

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Arrays are a fundamental data structure used to store collections of data. Exception statements and iteration are control structures, not data structures.

Multiple choice

Which of the following is not a limitation of binary search algorithm?

  1. Must use a sorted array

  2. Requirement of sorted array is expensive when a lot of insertion and deletions are needed

  3. There must be a mechanism to access middle element directly

  4. Binary search algorithm is not efficient when the data elements are more than 1000
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

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