1 / 5
An event arrives and the serverless platform runs your function once. The event ___ the function.
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Invoke a function is the standard serverless verb for running it once.
- invoke a function / a lambda
- Noun: an invocation — one execution
"Calls off" and "rings out" aren't the collocation. Example:
"Each upload invokes the thumbnail function."
2 / 5
A function that hasn't run recently is slow on its first request while the runtime initialises. This delay is a ___.
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A
cold start is the latency penalty when a serverless function spins up a fresh runtime.
- a cold start — first request after idle/scale-from-zero
- A warm function (already running) responds faster
The other options aren't the standard term. Example:
"Cold starts add ~300ms, so we keep one instance warm."
3 / 5
The platform allocates the compute resources needed to run your function. It ___ capacity.
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Provision means allocating/setting up the resources needed.
- provision capacity / resources / an instance
- e.g., provisioned concurrency keeps functions pre-warmed
"Furnishes up" and "equips out" aren't standard. Example:
"We provisioned concurrency to kill cold starts."
4 / 5
Too many invocations hit a limit, so the platform rejects or queues some. It ___ the requests.
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Throttle means limiting the rate of requests/invocations.
- throttle requests / invocations / a client
- Protects downstream systems from overload; returns throttling errors when limits are hit
"Strangles up" and "caps out" aren't standard. Example:
"The API throttles clients above 1000 requests per second."
5 / 5
One event triggers many parallel function invocations to process work concurrently. This pattern is ___.
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Fan out means dispatching one input into many parallel tasks/invocations.
- fan out (and fan in) — parallelise then aggregate
- Common with queues and event-driven serverless
"Branch up" and "split out" aren't the collocation. Example:
"We fan out across 100 lambdas to process the batch in seconds."