Foundations of cloud computing Flashcards
What is cloud
Server(s) that are online reachable
What is Cloud computing
delivery of computing service over the internet. Instead of using own machine / datacenter use those of AWS
Redshift, DataZone, Data Exchange belong to what category?
Analytics
What are 4 services that belong to the AWS computer services?
- EC2
- Beanstalk
- Lamda
- Fargate
Name 3 Network service
- Route 53
- VPC (virtual private cloud)
- API Gateway
What are 3 database services of AWS?
- Aurora
- Dynamo DB
- RDS
Name 3 Storage service
- S3
- File Cache
- Block Store
Name 3 management and governance services
- Cloud Trail
- Cloud watch
- Trusted advisor
What is capex
Upfront paid investment. Real life example a machineline to make cars.
Or buy several servers your self
What is opex
Cost to run your operation. For example leasing costs, employees
What are the 6 adventages of cloud computing?
- go live in minutes
- No data center spend
- Use the (price)n scale benefits of aws
- fast and agile
- Elastic capacity
- pay for what you use
What are the 4 benefits of cloud computing?
- High availabilty
- elasticty (scale when u need more)
- agility
- durability
What is IAAS?
Infra structure as a Service
example: the website that hosts your services
What is Saas?
Software as a service
example: you personal email you use in webbrowser
What is PaaS?
Platform as a service
example:
Shopify, build a store on someone else service
What is private cloud?
Own cloud - your own data centers, no real cloud adventages
What is Public cloud?
AWS, Azure, GCP
What is hybride cloud?
Combination of private and public. Sensitive data is stored in a private cloud.
A region is….. and has at least … AZ’s (availability zone’s)
Global, has => 2 availability zones
An Availability zone (AZ) has … data centers?
Multiple =>2 data centers
What are edge locations?
They don’t store data, they cache data for less latency. They place content closer to the data
What is a local zone?
A local zone is an extension of a region. It enables services like real time gaming
What are the 4 phases in the Cloud transformation Journey?
Envision -> align -> Launch -> Scale
What is the benefit of using the CAF(Cloud Transformation Framework)?
There are multiple business perspectives all focussing on business risks. Like growing operational efficiency, improve ESG (Enviromental, Social, Governance)
What is the root user?
User number one –> has ‘ god’-mode
The safety of thios login credentials should be really good
Should u use the root user for regular login?
No, create a daily user, that can do most task
