Public task directory

Technical interview practice tasks

Every entry below is a crawlable link to a unique public task page. This directory complements the interactive filters and keeps the complete catalog connected through standard pagination.

Page 165 of 386 · 18,491 tasks

Knowledge Check · Hard · 1 min

While reviewing React state updates, a handler reads the old value after setting state. Which action fixes it, and which check proves it worked

While reviewing React state updates, a handler reads the old value after setting state. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing React state updates, a prop and local copy drift apart. Which action fixes it, and which check proves it worked

While reviewing React state updates, a prop and local copy drift apart. Which action fixes it, and which check proves it worked?

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Knowledge Check · Medium · 1 min

While reviewing React state updates, three rapid increments produce only one change. Which action best addresses the problem

While reviewing React state updates, three rapid increments produce only one change. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing React state updates, an edited item does not trigger dependent rendering. Which action best addresses the problem

While reviewing React state updates, an edited item does not trigger dependent rendering. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing React state updates, a handler reads the old value after setting state. Which action best addresses the problem

While reviewing React state updates, a handler reads the old value after setting state. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing React state updates, a prop and local copy drift apart. Which action best addresses the problem

While reviewing React state updates, a prop and local copy drift apart. Which action best addresses the problem?

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Knowledge Check · Easy · 1 min

What is the main purpose of Candidate recall in recsys candidate generation

What is the main purpose of Candidate recall in recsys candidate generation?

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Knowledge Check · Easy · 1 min

What is the main purpose of Embedding retrieval in recsys candidate generation

What is the main purpose of Embedding retrieval in recsys candidate generation?

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Knowledge Check · Easy · 1 min

What is the main purpose of Rule candidate in recsys candidate generation

What is the main purpose of Rule candidate in recsys candidate generation?

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Knowledge Check · Easy · 1 min

What is the main purpose of Candidate diversity in recsys candidate generation

What is the main purpose of Candidate diversity in recsys candidate generation?

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Knowledge Check · Hard · 1 min

While reviewing recsys candidate generation, great items never reach the ranker. Which action fixes it, and which check proves it worked

While reviewing recsys candidate generation, great items never reach the ranker. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing recsys candidate generation, users need semantically similar products. Which action fixes it, and which check proves it worked

While reviewing recsys candidate generation, users need semantically similar products. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing recsys candidate generation, sponsored inventory must be eligible safely. Which action fixes it, and which check proves it worked

While reviewing recsys candidate generation, sponsored inventory must be eligible safely. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing recsys candidate generation, one popular category fills all candidates. Which action fixes it, and which check proves it worked

While reviewing recsys candidate generation, one popular category fills all candidates. Which action fixes it, and which check proves it worked?

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Knowledge Check · Medium · 1 min

While reviewing recsys candidate generation, great items never reach the ranker. Which action best addresses the problem

While reviewing recsys candidate generation, great items never reach the ranker. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing recsys candidate generation, users need semantically similar products. Which action best addresses the problem

While reviewing recsys candidate generation, users need semantically similar products. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing recsys candidate generation, sponsored inventory must be eligible safely. Which action best addresses the problem

While reviewing recsys candidate generation, sponsored inventory must be eligible safely. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing recsys candidate generation, one popular category fills all candidates. Which action best addresses the problem

While reviewing recsys candidate generation, one popular category fills all candidates. Which action best addresses the problem?

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Knowledge Check · Easy · 1 min

What is the main purpose of Exposure bias in recsys feedback bias

What is the main purpose of Exposure bias in recsys feedback bias?

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Knowledge Check · Easy · 1 min

What is the main purpose of Popularity loop in recsys feedback bias

What is the main purpose of Popularity loop in recsys feedback bias?

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Knowledge Check · Easy · 1 min

What is the main purpose of Selection bias in recsys feedback bias

What is the main purpose of Selection bias in recsys feedback bias?

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Knowledge Check · Easy · 1 min

What is the main purpose of Counterfactual signal in recsys feedback bias

What is the main purpose of Counterfactual signal in recsys feedback bias?

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Knowledge Check · Hard · 1 min

While reviewing recsys feedback bias, unshown items have no click labels. Which action fixes it, and which check proves it worked

While reviewing recsys feedback bias, unshown items have no click labels. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing recsys feedback bias, popular products crowd out new inventory. Which action fixes it, and which check proves it worked

While reviewing recsys feedback bias, popular products crowd out new inventory. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing recsys feedback bias, silent users disappear from training data. Which action fixes it, and which check proves it worked

While reviewing recsys feedback bias, silent users disappear from training data. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing recsys feedback bias, offline logs compare policies unfairly. Which action fixes it, and which check proves it worked

While reviewing recsys feedback bias, offline logs compare policies unfairly. Which action fixes it, and which check proves it worked?

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Knowledge Check · Medium · 1 min

While reviewing recsys feedback bias, unshown items have no click labels. Which action best addresses the problem

While reviewing recsys feedback bias, unshown items have no click labels. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing recsys feedback bias, popular products crowd out new inventory. Which action best addresses the problem

While reviewing recsys feedback bias, popular products crowd out new inventory. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing recsys feedback bias, silent users disappear from training data. Which action best addresses the problem

While reviewing recsys feedback bias, silent users disappear from training data. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing recsys feedback bias, offline logs compare policies unfairly. Which action best addresses the problem

While reviewing recsys feedback bias, offline logs compare policies unfairly. Which action best addresses the problem?

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Knowledge Check · Easy · 1 min

What is the main purpose of Precision at K in recsys offline metrics

What is the main purpose of Precision at K in recsys offline metrics?

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Knowledge Check · Easy · 1 min

What is the main purpose of Recall at K in recsys offline metrics

What is the main purpose of Recall at K in recsys offline metrics?

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Knowledge Check · Easy · 1 min

What is the main purpose of NDCG in recsys offline metrics

What is the main purpose of NDCG in recsys offline metrics?

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Knowledge Check · Easy · 1 min

What is the main purpose of Coverage in recsys offline metrics

What is the main purpose of Coverage in recsys offline metrics?

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Knowledge Check · Hard · 1 min

While reviewing recsys offline metrics, the product shows only ten recommendations. Which action fixes it, and which check proves it worked

While reviewing recsys offline metrics, the product shows only ten recommendations. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing recsys offline metrics, users have many known relevant items. Which action fixes it, and which check proves it worked

While reviewing recsys offline metrics, users have many known relevant items. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing recsys offline metrics, order within the recommendation list matters. Which action fixes it, and which check proves it worked

While reviewing recsys offline metrics, order within the recommendation list matters. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing recsys offline metrics, metrics improve while only popular items appear. Which action fixes it, and which check proves it worked

While reviewing recsys offline metrics, metrics improve while only popular items appear. Which action fixes it, and which check proves it worked?

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Knowledge Check · Medium · 1 min

While reviewing recsys offline metrics, the product shows only ten recommendations. Which action best addresses the problem

While reviewing recsys offline metrics, the product shows only ten recommendations. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing recsys offline metrics, users have many known relevant items. Which action best addresses the problem

While reviewing recsys offline metrics, users have many known relevant items. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing recsys offline metrics, order within the recommendation list matters. Which action best addresses the problem

While reviewing recsys offline metrics, order within the recommendation list matters. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing recsys offline metrics, metrics improve while only popular items appear. Which action best addresses the problem

While reviewing recsys offline metrics, metrics improve while only popular items appear. Which action best addresses the problem?

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Knowledge Check · Easy · 1 min

What is the main purpose of Primary metric in recsys online experiments

What is the main purpose of Primary metric in recsys online experiments?

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Knowledge Check · Easy · 1 min

What is the main purpose of Guardrail in recsys online experiments

What is the main purpose of Guardrail in recsys online experiments?

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Knowledge Check · Easy · 1 min

What is the main purpose of Randomization unit in recsys online experiments

What is the main purpose of Randomization unit in recsys online experiments?

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Knowledge Check · Easy · 1 min

What is the main purpose of Novelty effect in recsys online experiments

What is the main purpose of Novelty effect in recsys online experiments?

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Knowledge Check · Hard · 1 min

While reviewing recsys online experiments, a test aims to improve meaningful engagement. Which action fixes it, and which check proves it worked

While reviewing recsys online experiments, a test aims to improve meaningful engagement. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing recsys online experiments, clicks rise while purchases fall. Which action fixes it, and which check proves it worked

While reviewing recsys online experiments, clicks rise while purchases fall. Which action fixes it, and which check proves it worked?

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