Binary Trees using Array and Linked Lists Quiz Online Practice Test

1. What is the maximum number of children a node in a binary tree can have?

0, 1, or 2

0 or 1

Any number of children

2. What are the potential drawbacks of using standard arrays to implement a tree structure?

Challenges in identifying the child nodes of a given node

Difficulty in determining the parent node of a given node

Requirement to predefine the maximum number of nodes before creating the tree

Complexity in implementation

3. If a tree is not a complete binary tree, what adjustments can be made to simplify accessing a node’s children in an array representation?

Each node stores information about which of its children are present in the array

Maintain a separate table to track the children of each node

Use an additional parallel array to store information about the tree’s structure

If a tree is not a complete binary tree, what adjustments can be made to simplify accessing a node’s children in an array representation?

4. Which sequence of operations produces the output "cat"?

push(c, s); push(a, s); push(t, s); pop(s); pop(s); pop(s);

push(c, s); pop(s); push(a, s); pop(s); push(t, s); pop(s);

pop(c); pop(a); pop(t);

push(c, s); push(a, s); pop(t);

5. If you need to store a binary tree in a file with memory efficiency as a priority, is using an array representation effective?

Yes, because it eliminates the need for pointers, improving space efficiency.

Yes, because array elements are easily accessible by index.

No, it’s inefficient for sparse trees, although it works well in other cases.

No, a linked list representation is better for this purpose.

6. Can a tree that has been stored in an array using just one of the inorder, postorder, or preorder traversals be reconstructed?

Yes, by traversing the array and reconstructing the tree.

No, an additional traversal is needed to rebuild the tree.

No, it is not feasible for sparse trees.

Yes, by combining inorder traversal with the array elements.

7. What makes the linked list representation of binary trees preferable to arrays?

Flexibility with size adjustments

Simplified node insertion and deletion

Difficulty with random node access

The benefits of dynamic sizing and easier insertion/deletion

8. What are the drawbacks of using a linked list to represent binary trees compared to arrays?

Limited capability for random access

Increased memory usage due to pointers

Complicated deletion process

Both limited random access and additional memory requirements

9. Which of these algorithms doesn’t fit the standard tree traversal methods?

Post-order

Pre-order

In-order

Randomized

10. Which technique is used to perform level-order traversal of a tree?

Breadth-first search

Depth-first search

Dijkstra’s algorithm

Prim’s algorithm

11. Which factor is not a primary reason for using threaded binary trees?

High storage requirements for stacks and queues

Many pointers in binary tree nodes are NULL

Difficulty in locating successor nodes

Reduced memory footprint

Test Name:	Binary Trees using Array and Linked Lists Quiz
Subject Category:	Computer Science
Test Type:	Multiple Choice Questions
Total Score / Questions:	11 / 11
Time Allowed:	10 Min
Who Should Practice this Test:	Students, job seekers, or professionals preparing for competitive exams and interviews.

Binary Trees using Array and Linked Lists MCQ Quiz Online Practice Test