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Question

In a binary tree, certain null entries are replaced by special pointers which point to nodes higher in the tree for efficiency. These special pointers are called

a.

Leaf

b.

branch

c.

path

d.

thread

Answer: (d).thread

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Q. In a binary tree, certain null entries are replaced by special pointers which point to nodes higher in the tree for efficiency. These special pointers are called

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