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AWS Certified Developer Associate Practice Test 6

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Question : 29 of 43

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You are creating a web application in which users can follow each other. Some users will be more

popular than others and thus their data will be requested very often. Currently the user data

sits in RDS and it has been recommended by your Developer to use ElastiCache as a caching layer

to improve the read performance. The whole dataset of users cannot sit in ElastiCache without

incurring tremendous costs and therefore you would like to cache only the most often requested

users profiles there. As your website is high traffic, it is accepted to have stale data for

users for a while, as long as the stale data is less than a minute old. What caching strategy do

you recommend implementing?

Use a Lazy Loading strategy with TTL
Use a Lazy Loading strategy without TTL
Use a Write Through strategy with TTL
Use a Write Through strategy without TTL

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