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AWS CP > Billing and Pricing > Flashcards

Billing and Pricing Flashcards

1
Q

What is Capex?

A

Capital expenditure

Pay up front - fixed sunk cost

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2
Q

What is Opex?

A

Operation expenditure

Pay for what you use - variable

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3
Q

What are the different pricing policies?

A 
Pay as you go
Pay less when you reserve
Pay even less per unit by using more
Pay even less as AWS grows
Custom pricing
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4
Q

What are the fundamental drivers of cost with AWS?

A

Compute
Storage
Data outbound

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5
Q

Which services are free?

A 
Amazon VPC
Elastic Beanstalk
CloudFormation
IAM
Autoscaling
Opsworks
Consolidated billing
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6
Q

What determines EC2 pricing?

A 
Clock hours of server time
Instance type
Pricing model
Number of instances
Load balancing
Detailed monitoring
Autoscaling
Elastic IP addresses
Operating systems and software packages
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7
Q

What are the EC2 pricing models?

A

On demand - fixed rate by hour/second
Reserved - capacity reservation with discount for a contract of 1 or 3 years
Spot - bid whatever price you want for instance capacity, flexible start and end times
Dedicated hosts - physical EC2 servers

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8
Q

What determines price for lamda?

A

Request pricing - free tier = 1 million requests
Duration pricing - 400000 GB seconds per month free
Additional charges - incur if other AWS services or transfers of data

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9
Q

What determines the price of EBS?

A

Volumes (per GB)
Snapshots (per GB)
Data transfer

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10
Q

What determines price of S3?

A

Storage class (Standard or IA or 1 AZ IA etc)
Storage
Requests (GET, PUT, COPY)
Data transfer

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11
Q

What determines price for glacier?

A

Storage

Data retrieval times (Expedited, standard, bulk)

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12
Q

What determines the price for snowball?

A

Service per job
Daily charge
Data transfer - free to S3 but out of is not

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13
Q

What determines the price for RDS?

A 
Clock hours of server time
Database characteristics
Database purchase type
Number of database instances
Provisioned storage
Additional storage
Requests
Deployment type
Data transfer
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14
Q

What determines the price for DynamoDB?

A 
Provisioned throughput (write)
Provisioned throughput (read)
Indexed data storage
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15
Q

What determines price for cloudfront?

A

Traffic distribution
Requests
Data transfer out

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16
Q

What is AWS Budgets?

A

Set custom budgets that alert you when your costs or usage exceed your budget
Used to budget before costs have been incurred

17
Q

What is AWS cost explorer?

A

Lets you visualise, understand and manage your AWS costs and usage over time
Used to explore costs after they have been incurred

18
Q

What are the different AWS support plans?

A

Basic
Developer
Business
Enterprise

19
Q

What are tags?

A

Key value pairs attached to AWS resources
Metadata
Tags can sometimes be inherited

20
Q

What are resource groups?

A 
Used to apply automation
Include info:
Region
Name
Employee ID
Department
21
Q

What specific information can tags contain?

A

EC2 - public and private IP
ELB - port configurations
RDS - database engine

22
Q

What is tag editor?

A

Find resources and edit tags

Global service

23
Q

What is AWS organisations?

A

an account management service that enables you to consolidate multiple AWS accounts into an organisation unit that you create and centrally manage

24
Q

What are the two features of AWS organisations?

A

Consolidated billing

All features

25
Q

How consolidated billing works?

A

Paying account is independent - cannot access resources of the other accounts
All linked accounts are independent
Limit of 20 linked accounts

26
Q

What are the advantages of consolidated billing?

A

one bill per AWS account
Very easy to track charges and allocate costs
Volume pricing discount

27
Q

What are the best practises of AWS organisations?

A

Always enable multi-factor authentication on root account
Always use a strong and complex password on root account
Paying account should be used for billing purposes only, do not deploy resources into the paying account

28
Q

What is CloudTrail?

A

Monitors API calls in the AWS platform

For auditing

29
Q

How to use Cloudtrail with AWS organisations?

A

Per AWS account and is enabled per region

Can consolidate logs using an S3 bucket

30
Q

What are AWS quick starts?

A

Templates created by solution architects using blueprints of 3rd party application services
Deploy environments quickly using cloudformation templates built by AWS solutions architects who are experts in that particular technology

31
Q

What is the AWS landing zone?

A

Set up secure multi account aws environment

based on best practises

32
Q

What are the different types of AWS partners?

A

Consulting - service based

Technology - hardware, connectivity services

33
Q

What are the different levels of consulting partners?

A

Select
Advanced
Premier

34
Q

What are the different AWS calculators?

A

AWS simple monthly calculator - static S3 website

AWS total cost of ownership calculator - servers on prem vs on cloud, give to clevel execs to make a business case

35
Q

What does free tier include?

A

EC2 - 750 hours per month of t2.micro/t3.micro instance usage
S3 - 5GB of storage, 20000 get requests and 20000 put requests
RDS 750 hours of t2.micro database usage for MySQL, PostgreSQL etc, 20GB of general purpose SSD database storage and 20GB of storage for database backup and DB snapshots
CloudFront - 50GB data transfer out and 2mill HTTP and HTTPS requests each month

36
Q

What are the pricing policy principles and best practises?

A

Understand the fundamentals of pricing - where are costs?
Start early with cost optimisation
Maximise the power of flexibility - services are priced independently and transparently, pay as you go
Use the right pricing model for the job

AWS CP (4 decks)

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