MCQ Collection
gate-da MCQs
Practice gate-da questions with answers and explanations.
A. Precision is TP/(TP+FP).B. Recall is TP/(TP+FN).C. Accuracy is always suitable for highly imbalanced data.D. Specificity is TN/(TN+FP).
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Correct Answer: A|B|D
Explanation:
Accuracy can be misleading under severe imbalance.
A. The learning rate controls step size.B. A very large learning rate can cause divergence.C. Every non-convex objective has one unique global minimum.D. Feature scaling can improve convergence.
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Correct Answer: A|B|D
Explanation:
Non-convex objectives may have many local features.
A. AB is m×p.B. BA is always defined.C. Matrix multiplication is generally not commutative.D. Computing AB by the standard algorithm uses O(mnp) scalar operations.
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Correct Answer: A|C|D
Explanation:
BA requires p=m.
A. Precision is TP/(TP+FP).B. Recall is TP/(TP+FN).C. Accuracy is always suitable for highly imbalanced data.D. Specificity is TN/(TN+FP).
Show Answer
Correct Answer: A|B|D
Explanation:
Accuracy can be misleading under severe imbalance.
A. The learning rate controls step size.B. A very large learning rate can cause divergence.C. Every non-convex objective has one unique global minimum.D. Feature scaling can improve convergence.
Show Answer
Correct Answer: A|B|D
Explanation:
Non-convex objectives may have many local features.
Choose an option to check your answer.
A.
No data
B.
Constant arrays only
C.
Its own labels only
D.
Unseen data
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Correct Answer: D. Unseen data
Explanation:
Overfitting harms generalisation.
Choose an option to check your answer.
A.
Hinge length only
B.
Binary cross-entropy
C.
Mean absolute temperature
D.
Euclidean area
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Correct Answer: B. Binary cross-entropy
Explanation:
Binary cross-entropy matches Bernoulli likelihood.
Choose an option to check your answer.
A.
Unseen data
B.
No data
C.
Its own labels only
D.
Constant arrays only
Show Answer
Correct Answer: A. Unseen data
Explanation:
Overfitting harms generalisation.
Choose an option to check your answer.
A.
Binary cross-entropy
B.
Mean absolute temperature
C.
Hinge length only
D.
Euclidean area
Show Answer
Correct Answer: A. Binary cross-entropy
Explanation:
Binary cross-entropy matches Bernoulli likelihood.
Choose an option to check your answer.
A.
Constant arrays only
B.
No data
C.
Its own labels only
D.
Unseen data
Show Answer
Correct Answer: D. Unseen data
Explanation:
Overfitting harms generalisation.
Choose an option to check your answer.
A.
Mean absolute temperature
B.
Binary cross-entropy
C.
Hinge length only
D.
Euclidean area
Show Answer
Correct Answer: B. Binary cross-entropy
Explanation:
Binary cross-entropy matches Bernoulli likelihood.
Choose an option to check your answer.
A.
Constant arrays only
B.
Unseen data
C.
Its own labels only
D.
No data
Show Answer
Correct Answer: B. Unseen data
Explanation:
Overfitting harms generalisation.
