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Q. How does a Random Forest handle missing values?
  • A. It cannot handle missing values.
  • B. It uses mean imputation.
  • C. It uses a surrogate split.
  • D. It drops the entire dataset.
Q. How does a Random Forest improve upon a single Decision Tree?
  • A. By using a single model for predictions
  • B. By averaging the predictions of multiple trees
  • C. By increasing the depth of each tree
  • D. By using only the most important features
Q. How does a Red-Black tree ensure balance after deletion?
  • A. By performing rotations and recoloring.
  • B. By deleting the node and not balancing.
  • C. By merging nodes.
  • D. By increasing the height of the tree.
Q. How does a Red-Black Tree ensure balance after insertion?
  • A. By performing rotations and recoloring
  • B. By deleting the deepest node
  • C. By merging nodes
  • D. By increasing the height of the tree
Q. How does an AVL tree maintain balance after an insertion?
  • A. By performing rotations.
  • B. By deleting nodes.
  • C. By increasing the height of the tree.
  • D. By changing node colors.
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.
Q. How does binary search determine the middle element of the array?
  • A. Using the first and last index
  • B. Using the average of all elements
  • C. Using the median value
  • D. Using a random index
Q. How does binary search determine the middle index of an array?
  • A. (low + high) / 2
  • B. low + high
  • C. low * high
  • D. high - low
Q. How does binary search determine the next interval to search?
  • A. By comparing the target with the middle element
  • B. By checking the first and last elements
  • C. By using a hash table
  • D. By traversing the entire array
Q. How does binary search determine which half of the array to search next?
  • A. By comparing the middle element with the target
  • B. By checking the length of the array
  • C. By using a random index
  • D. By iterating through the array
Q. How does Dijkstra's algorithm ensure that it finds the shortest path?
  • A. By exploring all possible paths
  • B. By using a depth-first search
  • C. By always choosing the nearest unvisited vertex
  • D. By backtracking to previous nodes
Q. How does Dijkstra's algorithm ensure that the shortest path is found?
  • A. By exploring all possible paths
  • B. By using a greedy approach
  • C. By backtracking
  • D. By using dynamic programming
Q. How does Dijkstra's algorithm handle nodes that have already been visited?
  • A. It ignores them
  • B. It re-evaluates their distances
  • C. It adds them to a stack
  • D. It removes them from the graph
Q. How does Dijkstra's algorithm update the tentative distances of neighboring nodes?
  • A. By adding the edge weights to the current node's distance
  • B. By multiplying the edge weights with the current node's distance
  • C. By subtracting the edge weights from the current node's distance
  • D. By ignoring the edge weights
Q. How does Dijkstra's algorithm update the tentative distances?
  • A. By adding the edge weights to the current distances
  • B. By multiplying the edge weights with the current distances
  • C. By subtracting the edge weights from the current distances
  • D. By averaging the edge weights
Q. How does Random Forest handle missing values in the dataset?
  • A. It ignores missing values completely
  • B. It uses mean imputation for missing values
  • C. It can use surrogate splits to handle missing values
  • D. It requires complete data without any missing values
Q. How does Random Forest handle missing values?
  • A. It cannot handle missing values
  • B. It ignores missing values completely
  • C. It uses imputation techniques
  • D. It can use surrogate splits
Q. How does Random Forest improve upon a single Decision Tree?
  • A. By using a single tree with more depth.
  • B. By averaging the predictions of multiple trees.
  • C. By using only the most important features.
  • D. By increasing the size of the training dataset.
Q. How does Random Forest reduce the risk of overfitting compared to a single Decision Tree?
  • A. By using a single tree with more depth
  • B. By averaging the predictions of multiple trees
  • C. By using only the most important features
  • D. By increasing the size of the training dataset
Q. How does SVM handle multi-class classification problems?
  • A. By using a single model for all classes
  • B. By applying one-vs-one or one-vs-all strategies
  • C. By ignoring the additional classes
  • D. By converting them into binary problems only
Q. How does SVM handle outliers in the training data?
  • A. By ignoring them completely
  • B. By assigning them a higher weight
  • C. By using a soft margin approach
  • D. By clustering them separately
Q. How does the balancing factor of an AVL tree node get calculated?
  • A. Height of left subtree - height of right subtree
  • B. Height of right subtree - height of left subtree
  • C. Number of nodes in left subtree - number of nodes in right subtree
  • D. Number of nodes in right subtree - number of nodes in left subtree
Q. How does the balancing of an AVL tree differ from that of a Red-Black tree?
  • A. AVL trees are more rigidly balanced than Red-Black trees
  • B. Red-Black trees are always perfectly balanced
  • C. AVL trees allow more flexibility in balancing
  • D. There is no difference
Q. How does the choice of the kernel affect the performance of a Support Vector Machine?
  • A. It does not affect performance
  • B. It determines the complexity of the model
  • C. It only affects training time
  • D. It is irrelevant to the model's accuracy
Q. How does the height of an AVL tree compare to that of a Red-Black tree?
  • A. AVL trees are always shorter.
  • B. Red-Black trees are always shorter.
  • C. They have the same height.
  • D. AVL trees are shorter in the worst case.
Q. How does the insertion operation in a Red-Black Tree differ from that in an AVL Tree?
  • A. Red-Black Trees require fewer rotations
  • B. AVL Trees allow duplicate values
  • C. Red-Black Trees are always balanced
  • D. AVL Trees are faster for insertion
Q. How does the insertion operation in an AVL tree differ from that in a Red-Black tree?
  • A. AVL trees require more rotations
  • B. Red-Black trees require more rotations
  • C. Both require the same number of rotations
  • D. Insertion is the same in both
Q. How does the presence of duplicate elements affect the binary search algorithm?
  • A. It has no effect
  • B. It slows down the search
  • C. It can return any index of the duplicates
  • D. It makes the search impossible
Q. How does the time complexity of searching in a Red-Black Tree compare to that in an AVL Tree?
  • A. Red-Black Tree is faster
  • B. AVL Tree is faster
  • C. Both have the same time complexity
  • D. It depends on the implementation
Q. How does the time complexity of searching in a Red-Black Tree compare to that of an AVL Tree?
  • A. Red-Black is faster
  • B. AVL is faster
  • C. Both have the same complexity
  • D. Red-Black is slower
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