Q. In an AVL tree, what is the maximum height difference allowed between the left and right subtrees?
Solution
An AVL tree allows a maximum height difference of 1 between the left and right subtrees.
Correct Answer:
B
— 2
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Q. What is the main property that distinguishes an AVL tree from a Red-Black tree?
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A.
AVL trees are always balanced, Red-Black trees are not
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B.
Red-Black trees allow for more unbalanced structures than AVL trees
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C.
AVL trees can have a maximum height difference of 2, Red-Black trees can have a maximum height difference of 1
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D.
Both trees are identical in balancing properties
Solution
Red-Black trees allow for more unbalanced structures than AVL trees, which maintain a stricter balance.
Correct Answer:
B
— Red-Black trees allow for more unbalanced structures than AVL trees
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Q. Which balancing operation is performed when an AVL tree becomes unbalanced after an insertion?
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A.
Left Rotation
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B.
Right Rotation
-
C.
Left-Right Rotation
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D.
Right-Left Rotation
Solution
Depending on the case, AVL trees may perform Left Rotation, Right Rotation, Left-Right Rotation, or Right-Left Rotation to rebalance.
Correct Answer:
A
— Left Rotation
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Q. Which of the following operations is more efficient in an AVL tree compared to a Red-Black tree?
-
A.
Insertion
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B.
Deletion
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C.
Searching
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D.
All of the above
Solution
Searching is generally more efficient in AVL trees due to their stricter balancing, leading to a more consistent height.
Correct Answer:
C
— Searching
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