CLF-C02 Cloud Technology and Services Practice Question

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

• ✗

  S3 Intelligent-Tiering

  Why it's wrong here

  S3 Intelligent-Tiering is a storage class that automatically moves objects between access tiers, such as Frequent Access, Infrequent Access, Archive Instant Access, and Deep Archive Access, based on observed access patterns. Objects are stored in the same S3 bucket and region, and the service charges a small monthly monitoring and automation fee per object without retrieval fees. It optimizes storage cost by choosing the appropriate tier automatically, but it never duplicates an object to another region or creates any secondary copy.

• ✓

  S3 Cross-Region Replication (CRR)

  Why this is correct

  S3 Cross-Region Replication (CRR) automatically and asynchronously replicates newly uploaded objects and subsequent updates to a destination bucket in a different AWS Region. It requires versioning to be enabled on both source and destination buckets, and is commonly used for disaster recovery, compliance mandates that require data residency, and reducing latency for geographically distributed users. The configuration is defined by replication rules at the bucket level, and you can choose to replicate all objects or a subset by prefix or tag.

• ✗

  S3 Lifecycle policies

  Why it's wrong here

  S3 Lifecycle policies are rules that manage an object's storage lifecycle within the same bucket, such as transitioning from S3 Standard to S3 Standard-IA after 30 days and then to S3 Glacier after 90 days, or permanently deleting old versions. They only affect the storage class or existence of objects already in that bucket and region, and never copy data to a destination bucket in another region. While lifecycle actions can reduce cost, they do not support disaster recovery because no duplicate data is created in a separate geographic location.

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  S3 Transfer Acceleration

  Why it's wrong here

  S3 Transfer Acceleration is an upload optimization feature that uses AWS edge locations to receive your data over the internet and then forwards it to the destination S3 bucket over the AWS global network. It is designed to reduce upload time and variability for large objects, especially from locations far from the bucket, but it does not create copies or move data between regions. The data ends up in the same bucket you targeted; if that bucket is in one region, the data resides only there, so it cannot fulfill a cross-region replication requirement.