Data transfer cost awareness in AWS - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is data transfer cost in cloud services?

Data transfer cost is the fee charged by cloud providers when data moves between different locations, such as between regions, availability zones, or out to the internet.

beginner

Why is data transfer cost important to monitor?

Because moving data between cloud locations or outside the cloud can add up and increase your bill, monitoring helps avoid unexpected charges.

intermediate

Which data transfer is usually free within the same AWS Availability Zone?

Data transfer between resources in the same Availability Zone is usually free, helping reduce costs when designing your architecture.

intermediate

How can you reduce data transfer costs in AWS?

You can reduce costs by keeping data transfer within the same region or availability zone, using caching, and minimizing data sent to the internet.

intermediate

What is the difference between data transfer IN and data transfer OUT in AWS billing?

Data transfer IN (into AWS) is often free, while data transfer OUT (from AWS to the internet or other regions) usually incurs charges.

Which data transfer usually costs money in AWS?

A Data transfer between AWS regions

B Data transfer within the same Availability Zone

C Data transfer inside the same AWS instance

D Data transfer within the same VPC subnet

Data transfer between AWS regions typically incurs charges, while transfers within the same zone or instance are usually free.

What is a good way to reduce data transfer costs?

A Send all data to the internet

B Keep data transfer within the same region

C Use multiple regions for every service

D Ignore data transfer patterns

Keeping data transfer within the same region reduces costs because cross-region transfers are charged.

Data transfer OUT from AWS to the internet is:

A Usually charged

B Usually free

C Always free

D Not tracked

AWS usually charges for data leaving AWS to the internet.

Which AWS service can help reduce data transfer costs by caching content?

A Amazon S3

B AWS Lambda

C Amazon CloudFront

D Amazon EC2

Amazon CloudFront caches content closer to users, reducing data transfer from origin servers.

Data transfer between Availability Zones in the same region is:

A Free

B Charged at internet rates

C Charged at inter-region rates

D Usually charged

Data transfer between Availability Zones in the same region usually incurs charges.

Explain why understanding data transfer costs is important when designing cloud infrastructure.

Think about how moving data between places costs money.

Describe strategies to minimize data transfer costs in AWS.

Focus on where data moves and how to reduce that movement.