C949 - Data Structure and Algorithms Practice Test Exam
2026 Actual Questions with Verified Answers
| Latest 2026/2027 Update| 100% Correct A+
GRADE
Terms in this set (37)Which data structure
uses the "Last-In-First- Stack
Out" (LIFO) principle?
a.Queue
b. Heap
c. Stack
d. Hash Table
Which sorting algorithm has the best Quick
Sort average-case time complexity?
a.Bubble Sort
b. Selection Sort
c. Insertion Sort
d. Quick Sort
Which data structure is based on a
Tree hierarchical relationship between elements?
a.Stack
b.Queue
c. Linked List
d.Tree
Which algorithm is used to traverse a binary Inorder
Traversal tree in an in-order manner?
a.Depth-First Search (DFS)
b. Breadth-First Search (BFS)
c. Preorder Traversal
d. Inorder Traversal
, Which data structure is used to implement a
Heap
priority queue?
a.Queue
b. Stack
c. Heap
d. Linked List
Which sorting algorithm has the best worst- Merge
Sort case time complexity of O(n log n)?
a.Bubble Sort
b. Merge Sort
c. Selection Sort
d. Insertion Sort
In a binary search tree (BST), what is the It is greater than the parent node.
property of the right child compared to the
parent node?
a.It is greater than the parent node.
b. It is less than the parent node.
c. It is equal to the parent node.
d.There is no specific relationship.
Which data structure is suitable for Linked List
implementing a stack?
a.Array
b. Linked List
c. Hash Table
d. Heap
Which algorithm is used to find the minimum Prim's
Algorithm spanning tree in a weighted graph?
a.Breadth-First Search (BFS)
b. Depth-First Search (DFS)
c. Dijkstra's Algorithm
d. Prim's Algorithm
Which data structure allows efficient Hash
Table insertion, deletion, and retrieval operations
with a time complexity of O(1)?
a.Array
b. Linked List
c. Hash Table
d. Stack
Which sorting algorithm works by Bubble Sort
repeatedly finding the maximum element
and moving it to the end?
a.Bubble Sort
b.Quick Sort
c. Insertion Sort
d. Merge Sort
2026 Actual Questions with Verified Answers
| Latest 2026/2027 Update| 100% Correct A+
GRADE
Terms in this set (37)Which data structure
uses the "Last-In-First- Stack
Out" (LIFO) principle?
a.Queue
b. Heap
c. Stack
d. Hash Table
Which sorting algorithm has the best Quick
Sort average-case time complexity?
a.Bubble Sort
b. Selection Sort
c. Insertion Sort
d. Quick Sort
Which data structure is based on a
Tree hierarchical relationship between elements?
a.Stack
b.Queue
c. Linked List
d.Tree
Which algorithm is used to traverse a binary Inorder
Traversal tree in an in-order manner?
a.Depth-First Search (DFS)
b. Breadth-First Search (BFS)
c. Preorder Traversal
d. Inorder Traversal
, Which data structure is used to implement a
Heap
priority queue?
a.Queue
b. Stack
c. Heap
d. Linked List
Which sorting algorithm has the best worst- Merge
Sort case time complexity of O(n log n)?
a.Bubble Sort
b. Merge Sort
c. Selection Sort
d. Insertion Sort
In a binary search tree (BST), what is the It is greater than the parent node.
property of the right child compared to the
parent node?
a.It is greater than the parent node.
b. It is less than the parent node.
c. It is equal to the parent node.
d.There is no specific relationship.
Which data structure is suitable for Linked List
implementing a stack?
a.Array
b. Linked List
c. Hash Table
d. Heap
Which algorithm is used to find the minimum Prim's
Algorithm spanning tree in a weighted graph?
a.Breadth-First Search (BFS)
b. Depth-First Search (DFS)
c. Dijkstra's Algorithm
d. Prim's Algorithm
Which data structure allows efficient Hash
Table insertion, deletion, and retrieval operations
with a time complexity of O(1)?
a.Array
b. Linked List
c. Hash Table
d. Stack
Which sorting algorithm works by Bubble Sort
repeatedly finding the maximum element
and moving it to the end?
a.Bubble Sort
b.Quick Sort
c. Insertion Sort
d. Merge Sort
