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Answer: Write a lifecycle management rule in JSON and push it to the bucket with `gsutil`
The correct answer is B because Cloud Storage supports automatically managing the lifecycle of objects using a JSON document that defines the rules. This method is efficient and directly supported by `gsutil`. Option A is incorrect because XML is not supported by `gsutil` for lifecycle configurations; it only works with direct REST APIs. Options C and D are not recommended because manually listing objects, calculating their age, and then deleting them is cumbersome and less efficient than using lifecycle management rules.
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To optimize ongoing Cloud Storage spend by removing backup files older than 90 days from your backup Cloud Storage bucket, which approach should you take?
A
Schedule a cron script using gsutil ls -lr gs://backups/** to find and remove items older than 90 days
B
Write a lifecycle management rule in JSON and push it to the bucket with gsutil
C
Write a lifecycle management rule in XML and push it to the bucket with gsutil
D
Schedule a cron script using gsutil ls -l gs://backups/** to find and remove items older than 90 days and schedule it with cron