Billing and Pricing Flashcards
You want to run a questionnaire application for only 1 day (without interruption), which Amazon EC2 purchase option should you use?
On-demand instances.
What is Amazon EC2 “Reserved Instances” pricing model?
1) Type of EC2 instance that provides huge discount (up to 72%) compared to On-Demand pricing.
2) Capacity reservation when used in specific Availability Zone
3) Shortest reservation length is one year
4) Using Convertible Reserved instances provides flexibility to change families, operating systems, and tenancies.
What is Amazon EC2 “On-Demand Instances” pricing model?
1) Type of EC2 instance where you pay for compute capacity (increase/decrease) by the hour
2) Pay specific hourly rate for instances used
3) No long-term commitments
4) Free of complexity and maintenance of hardware large cost
5) Smaller variable cost
6) No longer need “Safety Net” capacity to handle spikes.
What is Amazon EC2 “Spot Instances” pricing model?
1) Type of EC2 instance that are unused and available in AWS cloud.
2) Provide up to 90% discount compared to On-Demand prices.
3) Reduces cost of running app, growing app’s computing capacity and throughput, and enables new types computing work.
What is Amazon EC2 “Dedicated Instances” pricing model?
1) EC2 instances that run in a VPC on hardware dedicated to a single customer.
2) May share hardware with other instances from the same AWS account that are NOT Dedicated Instances.
3) Physically isolated at the host hardware level from instances that belong to other AWS accounts.
4) Pay for Dedicated Instances On-Demand, save up to 70% by purchasing Reserved Instances, or save up to 90% by purchasing Spot Instances.
What is Amazon EC2 “Dedicated Hosts”?
1) It’s physical servers fully dedicated for a customer’s use to address corporate compliance requirements
2) Provides visibility and control over how instances are placed on a physical server
3) Same physical server can be used over time.
4) Integrated with AWS License manager, allows customers to use their own software licenses like Windows Server. This saves money.
5) AWS manages administrative tasks on behalf of customer so customer can launch instances seamlessly
Which AWS offering enables customers to find, buy, and immediately start using software solutions in their AWS environment?
1) AWS Marketplace
2) Curated digital catalog makes it easy for customers to find, buy, deploy, and manage third-party software and services that customers need.
3) Includes thousands of software listings such as security, networking, storage, machine learning, business intelligence, database, and DevOps.
4) AWS Marketplace also simplifies software licensing and procurement with flexible pricing options and multiple deployment methods. Customers can quickly launch pre-configured software with just a few clicks, and choose software solutions in AMI and SaaS formats, as well as other formats. Flexible pricing options include free trial, hourly, monthly, annual, multi-year, and BYOL, and get billed from one source, AWS.
An organization has decided to reserve EC2 compute capacity for three years in order to get more discounts. Their application workloads are likely to change during this time period. What is the EC2 Reserved Instance (RI) type that will allow them to modify the reservation whenever they need to?
1) Convertible RIs
2) Provide a discount (up to 54% off On-Demand)
3) Capability to change attributes of the RI as long as the exchange results in the creation of Reserved Instances of equal or greater value. These attributes include instance family, instance type, platform, scope, and tenancy.
What is a “Standards RI” and pricing?
1) Standard RIs provide the most significant discount (up to 75% off On-Demand)
2) Best for steady-state usage.
3) Standard Reserved Instances are not modifiable
What is a “Scheduled RI” and pricing?
1) Available to launch within a time windows reserved
2) Allows to match capacity reservation to a predictable recurring schedule that only requires a fraction of a day, a week, or a month.
3) Scheduled Reserved Instances are not modifiable
What EC2 Reserved Instances (RI) are not modifiable?
Scheduled RI and Standards RI
What are some billing benefits of Amazon EC2 On-demand instances?
1) No long-term commitments
2) No up-front payments
3) Follow pay-as-you-go pricing model
4) charged per second based on hourly rate
You are working on a project that involves creating thumbnails of millions of images; however, consistent uptime is not really an issue, and continuous processing is not required. Which type of EC2 buying option would be the most cost-effective?
1) Spot Instances because it’s cost effective discount (up to 90% ) off On-Demand pricing.
2) Cost effective for flexible apps, jobs, etc.
3) If Spot price is greater that specified price/capacity purchased, the instance will be automatically interrupted.
What is AWS pricing model and drivers?
1) AWS cloud uses Pay-as-you-go model:
a) no up-front charges or long-term commitments for on-demand resources
b) stop paying for services when you stop using it
c) no termination fees
2) 3 drivers of cost with AWS are:
a) Compute capacity: pay hourly from time a resource is launched until it terminates.
b) Storage: charged by GB.
c) Outbound data transfer: no charge for data transfers INTO AWS cloud or within same region. Outbound data transfers aggregated across services and charged at outbound transfer rate per GB. The more data transferred the less it costs.
What types of Cost Management Services does AWS provide?
1) Organize/report/track cost and usage
2) Consolidated billing and access permission.
3) Better planning through budgeting and forecasting
3) Lower cost with resources and pricing optimizations
You have set up consolidated billing for several AWS accounts. One of the accounts has purchased a number of reserved instances for 3 years. What is true about this scenario?
All accounts can receive the hourly cost benefit of the Reserved Instances because AWS treats all accounts in an organization as 1 account.
How can you view the distribution of AWS spending in one of your AWS accounts?
1) Using AWS Cost Explorer.
2) Free tool to view cost and usage data from 13 months in the past, and forecast of how much likely to use in next 3 months.
What AWS resource can help a customer delve deep into the Amazon EC2 billing activity for the past month?
1) The AWS Cost & Usage Reports.
2) Has all detailed information about the AWS cost and usage for each service category used by account and its IAM users in hourly/daily line items.
What is AWS TCO?
1) It’s AWS Total Cost of Ownership
2) Calculator for customers to evaluate savings from using AWS and comparing to on-premise/on-location environments
3) Matches current infrastructure to most cost-effective AWS offering.
4) Considers all costs to run solution.