💡 Services in this section appear occasionally in the exam, often as distractors (e.g. incorrect answers in an exam question). Still good to know what they are, in case they are not distractors, but you don't need to know more than their definition.
Media, Mobile & Webapp Support Services
- Amazon Workspaces: Desktop-as-a-Service (DaaS) → provision Windows/Linux desktops
- Spins an instance that hosts an OS Desktop (can connect to it, feels like logging to a laptop) → deploy instance close to users for better performance & lower latency
- Eliminates management of on-premise VDI (Virtual Desktop Infrastructure) → VDIs commonly used to remotely access on-prem infrastructure
- Amazon AppStream 2.0: application streaming service, can load a desktop app in a web browser
- Does NOT need a VDI!
- e.g. stream/load Blender, Paint, etc in a web browser
- AWS IoT Core: easily connect IoT devices to the AWS cloud, handles trillions of messages
- IoT = Internet of Things (e.g. car, front door, AC, TV, etc… many devices communicating in a local smart home NW via internet protocols)
- Amazon Elastic Transcoder: convert media files (e.g. videos) stored in S3 into other media formats
- AWS AppSync: serverless GraphQL APIs, for storing and syncing data across mobile & web apps in real time
- Many APIs follow REST paradigm, but GraphQL APIs are also popular
- AWS Amplify: develop and deploy scalable full-stack web and mobile applications
- Spins up infra and resources under the hood to handle authentication, storage, API (REST or GraphQL), CI/CD, PubSub, analytics, AI/ML, monitoring…
- 💡 Similar functionality that e.g. Vercel also provides
- AWS Device Farm: test your web & mobile apps by using desktop browsers, real mobile devices, and tablets
- âť—Â REAL devices (AWS-managed), NOT emulators!
Disaster Recovery (DR) and Business Continuity (BC)
💡 Refresher from Tech Fundamentals: Backups & Disaster Recovery (DR)
DR Strategies
Ref: https://www.udemy.com/course/aws-certified-cloud-practitioner-new/learn/lecture/29102338
- 🔧 Trade-off: price/costs vs faster failover/recovery from a disaster
- From cheapest/slowest to most expensive/fastest:
- Backup and Restore (just store snapshots/backups)
- Pilot Light (core functions of app ready, minimal setup)
- Warm Standby (full app ready, but at minimum size)
- Multi-Site/Hot-Site (full version of app at full size ready, can be used to load balance traffic with main infrastructure)
