In this short series, I outline the notes that I took while preparing for the AWS Cloud Practitioner exam.
These are my personal notes that I have made while working through the A Cloud Guru exam practitioner course. They are in no way official notes from AWS.
I would advise you that if you do use my notes to help you revise for this exam, that you use them as a supplement to the most recent information in the White Papers, Exam Guide and go over your knowledge with practice exam papers.
Previous notes within this blog series:
- Cloud Computing and the Topics To Cover
- AWS Global Infrastructure
- AWS Cost Management
- Identity Access Management (IAM)
- Simple Storage Service (S3)
- Elastic Compute Cloud (EC2)
- Load Balancers
- Domain Name System
- Elastic Beanstalk
- Architecting for the Cloud Best Practices: Part 1
- Architecting for the Cloud Best Practices: Part 2
- Global and On Premises AWS Services
- CloudWatch 101
- Systems Manager
- How AWS Pricing Works Whitepaper
What Determines the Price?
- Clock Hours of Server Time
- Instance Type e.g. T1 micro etc
- Pricing models
- Number of Instances
- Type of Load Balancing
- Detailed Monitoring (every 1 minute)
- Auto Scaling
- Elastic IP Addresses
- Operating Systems And Software Packages
- Using EC2 Reserved Instances to reserve capacity and you’ll get a discount
What Determines Price for Lambda?
S3 and Lambda functions are serverless services
- Request Pricing
- Free Tier: 1 million requests per month
- $0.20 per 1 million requests thereafter
- Duration Pricing (how long are the functions executing for)
- 400,000 GB-seconds per month free, up to 3.2 million seconds of compute time
- $0.00001667 for every GB-second used thereafter
- Additional charges
- E.g. if the Lambda function reads or writes data to or from Amazon S3, you will be billed for the read/write requests and the data stored in S3
What Determines Price for EBS?
- Volumes (per GB)
- Snapshots (per GB)
- Data Transfers
What Determines Price for S3?
- Storage Class (Standard or IA or 1 AZ IA etc)
- Storage used for data itself
- No of requests
What Determines Price for Glacier?
- Data retrieval – the greater the retrieval time the more cost savings you’ll have
What is Snowball?
- AWS Snowball is a PB-scale data transport solution that uses secure appliances to transfer large amounts of data into and out of the AWS cloud.
- Like a gigantic disk to use to move your data to AWS cloud
What Determines Price for Snowball?
- Service fee per job
- Snowball 50TB: $200
- Snowball 80TB: $250
- Daily Charge
- First 10 days are free, after that it’s $15 a day
- Data Transfer
- Data Transfer in to S3 is free. Data transfer out is not.
What Determines Price for RDS?
- Clock Hours of Server time
- Database Characteristics – SQL etc
- Database Purchase Type e.g. how large the db is
- Number of Database Instances
- Provisioned Storage e.g. how big in GBs
- Additional Storage
- Deployment types
- Data transfers
Three cost drivers:
- Provisioned throughput (write)
- Provisioned throughput (read)
- Indexed data storage
What determines the price for CloudFront?
- Traffic distribution
- Number of requests
- Data transfer out
Read the “How AWS Pricing Works” Whitepaper