Basic Tree Data Structure Concepts

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What is the root node in a tree hierarchy?

The node with the most children

The node with the most ancestors

The node with no parent (correct)

The node at the lowest level

Which nodes can be considered as sub-trees of the root node?

All nodes except the root node

Only the leaf nodes

T1, T2, and T3 (correct)

Only the nodes at level 1

What is the degree of a leaf node?

1

2

0 (correct)

Equal to the number of ancestors

What is the level number of the root node in a tree?

0 Signup and view all the answers

What is the path to the node E in the given image?

A → B → E Signup and view all the answers

What is an ancestor of a node in a tree?

Any predecessor node on a path from the root to that node Signup and view all the answers

What is the primary advantage of a Linked List over an array?

Dynamicity and ease of insertions and deletions Signup and view all the answers

What is a node in a Linked List?

A separate object with a data part and address part Signup and view all the answers

What is a disadvantage of a Linked List?

The nodes cannot be accessed directly Signup and view all the answers

In which package is the Linked List class located?

java.util Signup and view all the answers

What is a characteristic of a Linked List?

Elements are stored in non-contiguous memory locations Signup and view all the answers

What is the relationship between elements in a Linked List?

Elements are linked using pointers and addresses Signup and view all the answers

What is the primary function of the address field in a Singly Linked List node?

To contain the reference of the next node Signup and view all the answers

Which type of linked list allows traversal in both forward and backward directions?

Doubly Linked List Signup and view all the answers

What is the characteristic of the last node in a Doubly Linked List?

Its next link points to NULL Signup and view all the answers

What is the key feature of a Circular Linked List?

The last node points to the first node Signup and view all the answers

What is a node in a linked list composed of?

A data part and a next part Signup and view all the answers

What is the primary difference between a Singly Linked List and a Doubly Linked List?

Number of links in each node Signup and view all the answers