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S3

AWS S3

QuestionAnswer
Outline the Storage Tiers Standard (default, high throughput, low latency) Standard-IA (disaster recovery) Standard-OneZone Glacier Instant Retrieval Glacier Flexible Retrieval (expedited, standard, bulk) Glacier Deep Archive (standard, bulk) Intelligent Tiering Lifecycle
Define the basics of S3 Items stored as objects in top level directories called buckets Max object size = 5TB Bucket names globally unique No folder system, each object has unique key
What is the Shared Responsibility Model for S3? AWS: infrastructure, updates, compliance validation, vulnerability analysis User: IAM and access policies, client-side encryption at rest and in transit, versioning, replication, logging/monitoring, storage class utilisation
What is the Snow Family? Snowcone: <24TBs, robust, portable, compute/storage optimised, offline/online Snowball Edge: up tp PBs, offline, compute/storage optimised, CLI or OpsHub Snowmobile: >10PB, no compute Edge computing & data transfer Faster than network for large data
How does encryption work in S3? Server-side: Default Client-side: Optional
Website hosting in S3? Can host a static website from an S3 bucket Populate bucket with HTML, images, code etc. Public access must be enabled
Versioning in S3? Capable of allowing versions of objects to be retained in S3 Opt-in If turned off, versions persist Useful for rolling back changes
Replication in S3? 2 different buckets with asynchronous replication CROSS region: low latency access, compliance SAME region: log aggregation, live replication between prod and test environments Can be CROSS-ACCOUNT Requires IAM permission to write to specific buckets
Security in S3? - User based: IAM policies - Resource based: Bucket policies, object/bucket access control lists - Encryption (server and client side) - Blocking public access
Explain the concept of durability in S3 The risk that an object will be lost by S3 11 9's retention Store 10m objects, you would lose one object every 10k years Same across all storage classes
Explain the concept of availability in S3 How accessible the stored data is Varies between storage classes
What is S3 Gateway? Services that allows on-prem storage to access the AWS cloud Makes use of services like EBS, S3, and Glacier Useful for disaster recovery, backups, compliance, tiered storage Types: - File Gateway - Volume Gateway - Tape Gateway
Created by: katejimh
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