Q. How do AVL trees maintain balance after insertion?
-
A.
By performing rotations.
-
B.
By deleting nodes.
-
C.
By increasing the height of the tree.
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D.
By changing node colors.
Solution
AVL trees maintain balance by performing rotations (single or double) after insertions that cause imbalance.
Correct Answer:
A
— By performing rotations.
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Q. How does an AVL tree maintain balance after insertion?
-
A.
By performing rotations.
-
B.
By deleting nodes.
-
C.
By increasing the height.
-
D.
By changing colors.
Solution
AVL trees maintain balance by performing rotations (single or double) after insertions to ensure the balance factor remains within the allowed range.
Correct Answer:
A
— By performing rotations.
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Q. In a Red-Black tree, what color is the root node?
-
A.
Red
-
B.
Black
-
C.
Green
-
D.
Blue
Solution
The root of a Red-Black tree is always black to maintain the properties of the tree.
Correct Answer:
B
— Black
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Q. What is the primary advantage of using AVL trees over Red-Black trees?
-
A.
Faster search times.
-
B.
Easier implementation.
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C.
Less memory usage.
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D.
More flexible balancing.
Solution
AVL trees provide faster search times due to their stricter balancing compared to Red-Black trees.
Correct Answer:
A
— Faster search times.
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Q. Which operation is more complex in a Red-Black tree compared to an AVL tree?
-
A.
Insertion
-
B.
Deletion
-
C.
Searching
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D.
Traversal
Solution
Deletion in a Red-Black tree is more complex due to the need to maintain the tree's properties, often requiring multiple rotations and color changes.
Correct Answer:
B
— Deletion
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