Build fluency in the vocabulary of tolerating a short-notice reclaim of discounted compute capacity.
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At standup, a dev mentions a cloud provider reclaiming a discounted compute instance on short notice whenever it needs that capacity back for a full-price customer. What is this event called?
A spot instance interruption is a cloud provider reclaiming a discounted compute instance on short notice, typically just a couple of minutes, whenever it needs that capacity back for a full-price, on-demand customer. A scheduled maintenance window announced weeks in advance is a completely different, much more predictable kind of disruption. This short-notice reclaiming is the fundamental tradeoff that comes with a spot instance's steep discount compared to an on-demand instance.
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During a design review, the team wants the application to receive an interruption notice a couple of minutes before an instance is actually reclaimed, so it can gracefully drain its in-flight work. Which capability supports this?
The interruption notice warning is delivered a couple of minutes before a spot instance is actually reclaimed, giving the running application a short window to gracefully drain its in-flight work before it's cut off. A spot instance being reclaimed with absolutely no warning would give an application no chance at all to save its progress or hand off its work. This notice is the mechanism that makes running a genuinely interruptible workload on spot capacity practical rather than reckless.
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In a code review, a dev notices a batch job checkpoints its progress periodically to durable storage, so it can resume from the last checkpoint rather than restarting from scratch after an interruption. What does this represent?
Checkpointing progress to durable storage lets a batch job resume from its last saved checkpoint rather than restarting from scratch after a spot instance interruption. Keeping all progress only in the interrupted instance's own memory loses everything the moment that instance is reclaimed. This checkpointing discipline is what makes a long-running batch workload resilient to the unpredictable, short-notice nature of a spot interruption.
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An incident report shows a long-running batch job lost several hours of processed work every time a spot instance was reclaimed, because the job kept all of its progress only in that instance's own memory with no checkpoint ever written elsewhere. What practice would prevent this?
Checkpointing the job's progress periodically to durable storage lets it resume from the last saved point after an interruption, rather than losing everything processed since the job started. Keeping all progress only in the instance's own memory with no checkpoint is exactly what caused the hours of lost work this incident describes. This checkpointing discipline is essential for any long-running workload that intends to run economically on interruptible spot capacity.
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During a PR review, a teammate asks why the team runs a batch workload on spot instances with checkpointing instead of just using a full-price on-demand instance that's never subject to interruption. What is the reasoning?
A spot instance costs meaningfully less than an on-demand instance, often a significant discount, and checkpointing lets the batch job tolerate the occasional short-notice interruption without losing significant progress toward its overall work. The tradeoff is the added engineering effort of building the job to checkpoint and resume cleanly, which an on-demand-only workload doesn't need to bother with at all.
What does the "Spot Instance Interruption Vocabulary" vocabulary exercise cover?
This exercise tests real IT vocabulary related to spot instance interruption vocabulary through 5 multiple-choice questions, each built from realistic workplace sentences rather than abstract definitions.
Is this vocabulary exercise free to use?
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How many questions does this exercise have?
This exercise has 5 questions. Each one shows a real-world sentence or scenario with multiple-choice options and an explanation once you answer.
What happens after I answer a question?
You'll see immediate feedback showing whether your answer was correct, along with a short explanation of why — then a button to move to the next question, and a full results screen at the end.
Can I retry the exercise if I get questions wrong?
Yes. Once you reach the results screen, click "Try again" to reset your answers and go through the exercise from the start as many times as you like.
Do I need to create an account to take this exercise?
No account is needed. Your answers are scored in your browser during the session — nothing is saved to a server, so you can jump straight in.
Is my progress saved if I leave the page?
No — progress within an exercise resets if you navigate away or reload. Each exercise is short enough to complete in a few minutes in one sitting.
Are these vocabulary exercises connected to other topics?
Yes — browse the full vocabulary exercises hub to find related modules covering adjacent IT topics and roles.
How is this different from reading a glossary or blog article?
Exercises like this one are active recall drills — you have to choose the correct term or phrasing yourself, which builds retention faster than passively reading a definition.
Where can I find more vocabulary exercises?
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