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 84 of 386 · 18,491 tasks

Knowledge Check · Easy · 1 min

What is the main purpose of Backward-compatible deploy in backend delivery operations

What is the main purpose of Backward-compatible deploy in backend delivery operations?

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Knowledge Check · Easy · 1 min

What is the main purpose of Release health in backend delivery operations

What is the main purpose of Release health in backend delivery operations?

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Knowledge Check · Easy · 1 min

What is the main purpose of Operational runbook in backend delivery operations

What is the main purpose of Operational runbook in backend delivery operations?

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Knowledge Check · Hard · 1 min

While reviewing backend delivery operations, production rebuilds code after CI passes. Which action fixes it, and which check proves it worked

While reviewing backend delivery operations, production rebuilds code after CI passes. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing backend delivery operations, a new service expects a changed database field. Which action fixes it, and which check proves it worked

While reviewing backend delivery operations, a new service expects a changed database field. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing backend delivery operations, a deploy raises error rate gradually. Which action fixes it, and which check proves it worked

While reviewing backend delivery operations, a deploy raises error rate gradually. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing backend delivery operations, on-call cannot recover a stuck queue. Which action fixes it, and which check proves it worked

While reviewing backend delivery operations, on-call cannot recover a stuck queue. Which action fixes it, and which check proves it worked?

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Knowledge Check · Medium · 1 min

While reviewing backend delivery operations, production rebuilds code after CI passes. Which action best addresses the problem

While reviewing backend delivery operations, production rebuilds code after CI passes. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing backend delivery operations, a new service expects a changed database field. Which action best addresses the problem

While reviewing backend delivery operations, a new service expects a changed database field. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing backend delivery operations, a deploy raises error rate gradually. Which action best addresses the problem

While reviewing backend delivery operations, a deploy raises error rate gradually. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing backend delivery operations, on-call cannot recover a stuck queue. Which action best addresses the problem

While reviewing backend delivery operations, on-call cannot recover a stuck queue. Which action best addresses the problem?

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Knowledge Check · Easy · 1 min

What is the main purpose of Call stack in backend language runtime

What is the main purpose of Call stack in backend language runtime?

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Knowledge Check · Easy · 1 min

What is the main purpose of Heap memory in backend language runtime

What is the main purpose of Heap memory in backend language runtime?

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Knowledge Check · Easy · 1 min

What is the main purpose of Garbage collection in backend language runtime

What is the main purpose of Garbage collection in backend language runtime?

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Knowledge Check · Easy · 1 min

What is the main purpose of Runtime type in backend language runtime

What is the main purpose of Runtime type in backend language runtime?

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Knowledge Check · Hard · 1 min

While reviewing backend language runtime, deep recursion crashes on large input. Which action fixes it, and which check proves it worked

While reviewing backend language runtime, deep recursion crashes on large input. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing backend language runtime, request objects accumulate after completion. Which action fixes it, and which check proves it worked

While reviewing backend language runtime, request objects accumulate after completion. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing backend language runtime, latency spikes follow large allocation bursts. Which action fixes it, and which check proves it worked

While reviewing backend language runtime, latency spikes follow large allocation bursts. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing backend language runtime, deserialized input violates compile-time assumptions. Which action fixes it, and which check proves it worked

While reviewing backend language runtime, deserialized input violates compile-time assumptions. Which action fixes it, and which check proves it worked?

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Knowledge Check · Medium · 1 min

While reviewing backend language runtime, deep recursion crashes on large input. Which action best addresses the problem

While reviewing backend language runtime, deep recursion crashes on large input. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing backend language runtime, request objects accumulate after completion. Which action best addresses the problem

While reviewing backend language runtime, request objects accumulate after completion. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing backend language runtime, latency spikes follow large allocation bursts. Which action best addresses the problem

While reviewing backend language runtime, latency spikes follow large allocation bursts. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing backend language runtime, deserialized input violates compile-time assumptions. Which action best addresses the problem

While reviewing backend language runtime, deserialized input violates compile-time assumptions. Which action best addresses the problem?

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Knowledge Check · Easy · 1 min

What is the main purpose of Request metric in backend observability

What is the main purpose of Request metric in backend observability?

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Knowledge Check · Easy · 1 min

What is the main purpose of Structured log in backend observability

What is the main purpose of Structured log in backend observability?

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Knowledge Check · Easy · 1 min

What is the main purpose of Distributed trace in backend observability

What is the main purpose of Distributed trace in backend observability?

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Knowledge Check · Easy · 1 min

What is the main purpose of Cardinality control in backend observability

What is the main purpose of Cardinality control in backend observability?

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Knowledge Check · Hard · 1 min

While reviewing backend observability, a team cannot identify a failing endpoint. Which action fixes it, and which check proves it worked

While reviewing backend observability, a team cannot identify a failing endpoint. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing backend observability, an error message embeds order data in text. Which action fixes it, and which check proves it worked

While reviewing backend observability, an error message embeds order data in text. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing backend observability, checkout latency spans three services. Which action fixes it, and which check proves it worked

While reviewing backend observability, checkout latency spans three services. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing backend observability, a metric labels every user identifier. Which action fixes it, and which check proves it worked

While reviewing backend observability, a metric labels every user identifier. Which action fixes it, and which check proves it worked?

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Knowledge Check · Medium · 1 min

While reviewing backend observability, a team cannot identify a failing endpoint. Which action best addresses the problem

While reviewing backend observability, a team cannot identify a failing endpoint. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing backend observability, an error message embeds order data in text. Which action best addresses the problem

While reviewing backend observability, an error message embeds order data in text. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing backend observability, checkout latency spans three services. Which action best addresses the problem

While reviewing backend observability, checkout latency spans three services. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing backend observability, a metric labels every user identifier. Which action best addresses the problem

While reviewing backend observability, a metric labels every user identifier. Which action best addresses the problem?

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Knowledge Check · Easy · 1 min

What is the main purpose of Horizontal scaling in backend performance scaling

What is the main purpose of Horizontal scaling in backend performance scaling?

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Knowledge Check · Easy · 1 min

What is the main purpose of Connection pool in backend performance scaling

What is the main purpose of Connection pool in backend performance scaling?

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Knowledge Check · Easy · 1 min

What is the main purpose of Batching in backend performance scaling

What is the main purpose of Batching in backend performance scaling?

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Knowledge Check · Easy · 1 min

What is the main purpose of Hot path in backend performance scaling

What is the main purpose of Hot path in backend performance scaling?

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Knowledge Check · Hard · 1 min

While reviewing backend performance scaling, stateless request capacity must increase. Which action fixes it, and which check proves it worked

While reviewing backend performance scaling, stateless request capacity must increase. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing backend performance scaling, each request opens a new database session. Which action fixes it, and which check proves it worked

While reviewing backend performance scaling, each request opens a new database session. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing backend performance scaling, a worker writes one metric per round trip. Which action fixes it, and which check proves it worked

While reviewing backend performance scaling, a worker writes one metric per round trip. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing backend performance scaling, a rare admin task has the largest function. Which action fixes it, and which check proves it worked

While reviewing backend performance scaling, a rare admin task has the largest function. Which action fixes it, and which check proves it worked?

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Knowledge Check · Medium · 1 min

While reviewing backend performance scaling, stateless request capacity must increase. Which action best addresses the problem

While reviewing backend performance scaling, stateless request capacity must increase. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing backend performance scaling, each request opens a new database session. Which action best addresses the problem

While reviewing backend performance scaling, each request opens a new database session. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing backend performance scaling, a worker writes one metric per round trip. Which action best addresses the problem

While reviewing backend performance scaling, a worker writes one metric per round trip. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing backend performance scaling, a rare admin task has the largest function. Which action best addresses the problem

While reviewing backend performance scaling, a rare admin task has the largest function. Which action best addresses the problem?

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Knowledge Check · Easy · 1 min

What is the main purpose of Deadline propagation in backend reliability

What is the main purpose of Deadline propagation in backend reliability?

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