Cost optimization for cloud resources in Apache Airflow - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is cost optimization in cloud computing?

Cost optimization means using cloud resources efficiently to reduce spending while maintaining performance and reliability.

beginner

Name one common way to reduce cloud costs using Airflow.

Scheduling tasks to run only when needed, avoiding unnecessary resource use and idle time.

intermediate

How can Airflow's dynamic task allocation help with cost optimization?

It allows running only the required tasks on demand, reducing the number of active resources and lowering costs.

intermediate

What is the benefit of using spot instances or preemptible VMs in cloud cost optimization?

They are cheaper compute resources that can be used for non-critical or retryable tasks to save money.

beginner

Why is monitoring cloud resource usage important for cost optimization?

Monitoring helps identify unused or underused resources so you can stop or resize them to save costs.

Which Airflow feature helps reduce cloud costs by running tasks only when needed?

A Static resource allocation

B Task scheduling

C Manual task triggering

D Unlimited retries

Task scheduling runs tasks at specific times or events, avoiding unnecessary resource use.

What is a spot instance in cloud computing?

A A low-cost, interruptible resource

B A high-cost, guaranteed resource

C A permanent storage option

D A type of database

Spot instances are cheaper but can be stopped by the cloud provider, suitable for flexible workloads.

Why should you monitor cloud resource usage?

A To identify unused resources and reduce costs

B To increase resource allocation

C To disable security features

D To avoid backups

Monitoring helps find resources that waste money so you can optimize spending.

How does dynamic task allocation in Airflow help with cost optimization?

A Runs all tasks at once

B Increases resource limits

C Runs only necessary tasks on demand

D Disables task retries

Dynamic allocation runs tasks only when needed, saving cloud resource costs.

Which practice helps reduce cloud costs when using Airflow?

A Running tasks 24/7 regardless of need

B Ignoring task failures

C Using the largest instance type always

D Scheduling tasks to run during off-peak hours

Scheduling tasks during off-peak hours can reduce costs due to lower demand pricing.

Explain how Airflow can help optimize cloud costs in a data pipeline.

Think about when and how tasks run and what resources they use.

List three strategies to reduce cloud costs when running workflows with Airflow.

Focus on timing, resource type, and monitoring.