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17 Cards in this Set
- Front
- Back
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What is S3 defined as? |
Storage for the internet |
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What are the two players in S3? |
Object and buckets |
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What are the two attributes of an object? |
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What would be determined by bucket-level permissions? |
Who can create objects Who can delete Who can list |
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What is a corollary of the extent of those permissions? |
Objects are immutable, they are not updated. |
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What else can I control about a bucket? |
Which region it sits in |
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What restrictions are there on bucket creation? |
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What options do I have when uploading an object to a bucket to keep it safe? |
Encryption at rest |
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If upload an object aircon.pdf to a bucket called cricket-fixtures in the Sydney Region (Asia Pacific 2, what would the url be? |
http://s3-ap-southeast-2.amazonaws.com/cricket-fixtures/aircon.pdf |
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Why would you empty rather than delete a bucket? |
Stop someone allocating it if you want to use it in the future |
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What is the default bucket limit for an account? |
100
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What is the limit for objects in a bucket? |
Unlimited |
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How can I change the region of a bucket once it's created? |
You can't |
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What is an important design consideration wrt bucket creation and updates? |
The create and delete operations are slow, and should therefore be done in a 'background' operation, not as part of a user interaction |
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Why are bucket create and delete operations slow? |
Because they have to check 'globally' for the bucket name, or update all regions when it's deleted. |
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Which operations are appropriate for 'use-case' level operations? |
Operations on the objects, rather than the buckets themselves |
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What is an important consideration when my application creates bucket names on the fly? |
That is has logic to handle the name already being taken and can retry with a new name |
