the core storage services Flashcards
what is the basic purpose of S3?
lets you store and retrieve unlimited amounts of data
what is the term given to data stored in AWS data centers?
objects
where are objects stored? Hint: it is essentially a flat file system
buckets
what is the function of S3 storage classes?
to offer low cost, durable, and highly available storage options
what are the different storage classes? Hint: there are six
Standard Standard IA Intelligent-Tiering One Zone IA Glacier Reduced Redundacy
there are three access categories, what are they?
frequently
infrequently
mix
which storage class has the highest level of durability and availability?
standard
what are the three methods of permitting access?
bucket policies
user policies
bucket and access control list (ACL)
how is server-side encryption used to protect data?
when you create an object, S3 encrypts the object and saves only the encrypted content. When you retrieve the object, S3 decrypts it and delivers the unencrypted object; Amazon managed
how is client-side encryption used to protect data?
You encrypt the data prior to uploading it to S3. You must decrypt the object when you retrieve it from S3.
what is the purpose of versioning?
to keep multiple variants of an object in the same bucket
what is the function of object life cycle configurations?
to help you control costs by automatically moving objects to different storage classes or deleting them after a time.
what are the two actions that can be applied a bucket for object life cycle configuration?
transition
expiration
what is the purpose of S3 Glacier?
offers long-term archiving of infrequently accessed data at an incredibly low cost.
what is the function of archives and vaults with S3 Glacier?
archive is a base unit of storage; vault is the container for archives
