Q. A binary tree is a ________data structure; each node belongs to a particular level number.

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Q. The nodes belonging to the same parent node are known as_______.

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Q. The depth of a binary tree is the highest level number of any ______ in the binary tree.

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Q. Which line connects any two nodes?

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Q. The degree of a node is equal to the number of its__________.

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Q. The nodes belonging to the same parent node are known as_________.

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Q. A binary tree is said to be a complete binary tree if all the leaf nodes of the tree are at ________.

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Q. A binary tree is said to be an extended binary tree (also known as 2-tree) if all of its nodes are of _______.

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Q. Like _________- binary trees can also be represented in two ways in the memory—array (sequential) representation and linked representation.

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Q. In the array representation, what is represented sequentially in memory using a single one-dimensional
array?

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Q. The linked representation of a binary tree is implemented by using a linked list having an_________.

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Q. Traversing a binary tree refers to the process of visiting each and every node of the tree exactly how many times?

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Q. In how many different ways can a tree be traversed?

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Q. In pre-order traversal, the root node is visited before traversing its________subtrees.

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Q. In which traversal, the root node is visited after the traversal of its left subtree and before the traversal of its right subtree?

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Q. Elements in a nonlinear data structure do not form a sequence for example_________.

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Q. One way is to have the linear relationship between the elements by means of sequential memory locations and such linear structures are called ______.

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Q. What is one of the most common operations that is performed on trees?

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Q. In which tree, the right NULL pointer of each node (not having a right child node) points to its in-order successor?

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Q. A binary search tree, also known as_________.

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