Cold start behavior in GCP - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a cold start in cloud computing?

A cold start happens when a cloud service or function starts from zero, with no previous instances running. It takes extra time to set up before it can handle requests.

beginner

Why do cold starts cause delays in serverless functions?

Because the cloud provider must create a new environment, load code, and initialize resources before running the function, which takes extra time.

intermediate

How does Google Cloud Functions handle cold starts?

Google Cloud Functions creates a new instance when no warm instances are available, causing a cold start delay before the function runs.

intermediate

Name one way to reduce cold start delays in Google Cloud Functions.

Keep functions warm by triggering them regularly or use minimum instances to keep some instances always ready.

beginner

What is the difference between a cold start and a warm start?

A cold start is when a new instance is created from scratch, causing delay. A warm start uses an existing instance, so it responds faster.

What causes a cold start in serverless functions?

A Too many requests at once

B No existing instances are running

C Function code errors

D Network latency

A cold start happens when there are no existing instances ready to handle the request.

Which Google Cloud service is known for cold start behavior?

A Cloud Functions

B Cloud Storage

C BigQuery

D Cloud SQL

Cloud Functions is a serverless compute service that can experience cold starts.

How can you reduce cold start delays in Google Cloud Functions?

A Use larger memory allocation

B Disable logging

C Keep functions warm by triggering them regularly

D Use Cloud Storage instead

Regularly triggering functions keeps instances warm and reduces cold start delays.

What happens during a cold start?

A Function runs instantly

B Network connection is closed

C Function is deleted

D New environment is created and initialized

A cold start involves creating and initializing a new environment before running the function.

Which of these is NOT a cause of cold start delay?

A Using an existing instance

B Initializing runtime environment

C Loading code into memory

D Setting up dependencies

Using an existing instance is a warm start and does not cause cold start delay.

Explain what cold start behavior is and why it matters in cloud functions.

Think about what happens when a function runs for the first time or after being idle.

Describe methods to reduce cold start delays in Google Cloud Functions.

Consider how to keep the function environment ready before requests come.