Amazon Simple Storage Service (Amazon S3) is a scalable object storage service designed to store and retrieve any amount of data from anywhere on the web. It's commonly used to store files, backups, images, videos, and more.
Amazon S3 offers features like data durability, high availability, security options, scalable storage, and the ability to store data in different storage classes based on access patterns.
An S3 bucket is a container for storing objects, which can be files, images, videos, and more. Each object in S3 is identified by a unique key within a bucket.
Access to S3 objects can be controlled using bucket policies, access control lists (ACLs), and IAM (Identity and Access Management) policies. You can define who can read, write, and delete objects.
5. What is the difference between S3 Standard, S3 Intelligent-Tiering, and S3 One Zone-IA storage classes?
- S3 Standard: Offers high durability, availability, and performance.
- S3 Intelligent-Tiering: Automatically moves objects between two access tiers based on changing access patterns.
- S3 One Zone-IA: Stores objects in a single availability zone with lower storage costs, but without the multi-AZ resilience of S3 Standard.
S3 provides 99.999999999% (11 9's) durability by automatically replicating objects across multiple facilities within a region.
Amazon S3 Glacier is a storage service designed for data archiving. It offers lower-cost storage with retrieval times ranging from minutes to hours.
You can secure data in Amazon S3 by using access control mechanisms, like bucket policies and IAM policies, and by enabling encryption using server-side encryption or client-side encryption.
S3 versioning is a feature that allows you to preserve, retrieve, and restore every version of every object in a bucket. It helps protect against accidental deletion and overwrites.
A pre-signed URL is a URL that grants temporary access to an S3 object. It can be generated using your AWS credentials and shared with others to provide temporary access.
You can optimize costs by using storage classes that match your data access patterns, utilizing lifecycle policies to transition objects to less expensive storage tiers, and setting up cost allocation tags for billing visibility.
S3 Cross-Region Replication is a feature that automatically replicates objects from one S3 bucket in one AWS region to another bucket in a different region.
You can use S3 Lifecycle policies to automate the transition of objects between storage classes based on predefined rules and time intervals.
S3 event notifications allow you to trigger AWS Lambda functions or SQS queues when certain events, like object creation or deletion, occur in an S3 bucket.
The AWS Snowball is a physical data transport solution used for migrating large amounts of data into and out of AWS. It's ideal for scenarios where the network transfer speed is not sufficient.
Amazon S3 Select is a feature that allows you to retrieve specific data from an object using SQL-like queries, without the need to retrieve the entire object.
Amazon S3 is object storage used for storing files, while Amazon EBS (Elastic Block Store) is block storage used for attaching to EC2 instances as volumes.
You can enable server access logging to track all requests made to your bucket. The logs are stored in a target bucket and can help analyze access patterns.
S3 Transfer Acceleration is a feature that speeds up transferring files to and from Amazon S3 by utilizing Amazon CloudFront's globally distributed edge locations.
You can use S3 Cross-Region Replication to replicate data between S3 buckets within the same region by specifying the same source and destination region.