https://wiki.quizz.vn/ 2026-04-15T18:14:07+00:00 https://wiki.quizz.vn/ https://wiki.quizz.vn/lib/exe/fetch.php?media=wiki:dokuwiki.svg text/html 2025-12-28T07:12:38+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.quizz.vn/doku.php?id=aws:storage:s3:bucket-policy&rev=1766905958&do=diff Bucket Policy What it is: A resource-based policy attached to an S3 bucket. What it’s for: * Control who can access bucket/object actions. * Enable cross-account access to a bucket. * Enforce security requirements (e.g., HTTPS-only, specific IP ranges). text/html 2025-12-28T07:11:03+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.quizz.vn/doku.php?id=aws:storage:s3:bucket&rev=1766905863&do=diff Bucket What it is: A top-level container in S3 where you store objects. What it’s for: * Organize data by purpose (e.g., logs bucket, uploads bucket). * Apply policies, encryption, and lifecycle settings at bucket scope. Key ideas: * Bucket name is text/html 2025-12-28T07:12:17+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.quizz.vn/doku.php?id=aws:storage:s3:encryption&rev=1766905937&do=diff S3 Encryption (SSE-S3 / SSE-KMS) What it is: Encrypting S3 objects at rest. What it’s for: * Protect data if storage media is compromised. * Meet compliance/security requirements. Common server-side encryption options: * SSE-S3: AWS-managed keys handled by S3. text/html 2025-12-28T07:12:00+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.quizz.vn/doku.php?id=aws:storage:s3:lifecycle&rev=1766905920&do=diff Lifecycle Rules What it is: Rules that automatically transition objects between storage classes or expire/delete them. What it’s for: * Reduce cost (move old data to cheaper storage). * Automatically delete data after a retention period. Key ideas: text/html 2025-12-28T09:32:45+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.quizz.vn/doku.php?id=aws:storage:s3:object-lock&rev=1766914365&do=diff S3 Object Lock What it is: A feature that prevents objects from being deleted or overwritten for a fixed retention period (WORM-style protection). What it’s for: * Meet compliance requirements (financial, legal retention). * Protect critical data from accidental or malicious deletion. text/html 2025-12-28T07:11:17+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.quizz.vn/doku.php?id=aws:storage:s3:object&rev=1766905877&do=diff Object What it is: A file stored in S3, plus metadata, stored under a key (path-like name). What it’s for: * Store and retrieve files using the object key. * Attach metadata (content-type, tags, custom metadata). Key ideas: * Object identity = bucket + key. text/html 2025-12-28T07:12:52+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.quizz.vn/doku.php?id=aws:storage:s3:pre-signed-url&rev=1766905972&do=diff Pre-signed URL What it is: A URL that grants temporary permission to access an S3 object. What it’s for: * Let users upload/download to S3 without making the bucket public. * Share access that expires automatically. Key ideas: * Created by an authorized principal (with S3 permissions). text/html 2025-12-28T07:11:36+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.quizz.vn/doku.php?id=aws:storage:s3:storage-classes&rev=1766905896&do=diff S3 Storage Classes What it is: Different cost/performance tiers for storing S3 objects. What it’s for: * Optimize cost based on access frequency and retrieval needs. Common storage classes (exam-relevant): * S3 Standard: frequent access. * text/html 2025-12-28T09:22:18+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.quizz.vn/doku.php?id=aws:storage:s3:transfer-acceleration&rev=1766913738&do=diff S3 Transfer Acceleration (S3TA) What it is: A feature that can speed up transfers between clients on the internet and an S3 bucket by using AWS edge locations and the AWS global network. What it’s for: * Faster uploads/downloads over long distances (global users, large files). text/html 2025-12-28T07:11:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.quizz.vn/doku.php?id=aws:storage:s3:versioning&rev=1766905908&do=diff Versioning What it is: Keeping multiple versions of an object in the same bucket. What it’s for: * Protect against accidental deletes/overwrites. * Enable recovery to a previous version. Key ideas: * When enabled, deletes create a delete marker