Web Services 1 Flashcards
1
Q
- a cloud-native platform for
- short-running, stateless computation and
- event-driven applications which
- scales up and down instantly and automaticallyand
- charges for actual usage at a millisecond granularity
A
Serverless
short tasks that don’t need a server to be running all the time, like handling individual requests from a website or reacting to specific events, like someone uploading a file or sending a message. It’s flexible, cost-effective, and saves you from the hassle of managing servers yourself.
2
Q
What triggers code execution?
A
- Runs code in response to events
- Event-programming model
only activated when something specific happens, and it doesn’t just sit idle waiting for things to occur
3
Q
Why is Serverless attractive?
A
- Making app development & ops dramatically faster, cheaper, easier
- Drives infrastructure cost savings
focus on building great applications without getting bogged down by the complexities and costs of managing infrastructure.
4
Q
key factors for infrastructure cost savings
A
- high availability
- multi-region deployment
- cover delta between short load spikes and valleys
- example incremental cost
5
Q
example serverless
A
- chatbot
- Nordstrom Recommendations
6
Q
What is Serverless good for?
A
- short-running
- stateless
- event-driven
- microservices
- mobile backends
- bots, ML inferencing
- IoT
- Modest Stream Processing
- Service Integration
7
Q
Serverless is not good for
A
- long running
- stateful
- number crunching
- deep learning training
- databases
- heavy-duty stream analytics
- numerical simulation
- video streaming
8
Q
Current Platforms for Serverless
A
- AWS Lambada
- Open Lambada
- Fission
- Google Function
- Red-Hat
- IBM Cloud Functions
- Iron.io
- OpenWhisk
- fn
- Azure Function
