What is the order of most-to-least rapidly-scaling (fastest to scale first)?
A) EC2 + ELB + Auto Scaling
B) Lambda
C) RDS

at least 15 minutes, and will apply OS patches or any other updates when applied. https://aws.amazon.com/lambda/faqs/

Your CTO has asked you to make sure that you know what all users of your AWS account are doing to change resources at all times. She wants a report of who is doing what over time, reported to her once per week, for as broad a resource type group as possible. How should you do this?

on your account. CloudTrail records important information about each API call, including the name of the API, the identity of the caller, the time of the API call, the request parameters, and the response elements returned by the AWS service. https://aws.amazon.com/cloudtrail/faqs/

You are building a mobile app for consumers to post cat pictures online. You will be storing the images in AWS S3. You want to run the system very cheaply and simply. Which one of these options allows you to build a photo sharing application without needing to worry about scaling expensive uploads processes, authentication/authorization and so forth?

the same providers, and you configure your app and authenticate with those providers in the same way. But Amazon and later sign in using one of the supported identity providers. https://blogs.aws.amazon.com/security/post/Tx3SYCORF5EKRC0/How-Does-Amazon-Cognito-Relate-to-Existing-

What is the scope of AWS IAM?

https://aws.amazon.com/iam/faqs/

You are building a Ruby on Rails application for internal, non-production use which uses MySQL as a database. You want developers without very much AWS experience to be able to deploy new code with a single command line push.
You also want to set this up as simply as possible. Which tool is ideal for this setup?

options for this question. With Elastic Beanstalk, you can quickly deploy and manage applications in the AWS cloud without worrying about the infrastructure that runs those applications. AWS Elastic Beanstalk reduces management complexity without restricting choice or control. You simply upload your application, and Elastic Beanstalk automatically handles the details of capacity provisioning, load balancing, scaling, and application health monitoring. http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/create_deploy_Ruby_rails.html

You need to replicate API calls across two systems in real time. What tool should you use as a buffer and transport mechanism for API call events?

programmatic events, making it ideal for replicating API calls across systems. A typical Amazon Kinesis Streams application reads data from an Amazon Kinesis stream as data records. These applications can use the Amazon Kinesis generate alerts, dynamically change pricing and advertising strategies, or send data to a variety of other AWS services. http://docs.aws.amazon.com/kinesis/latest/dev/introduction.html

Your team wants to begin practicing continuous delivery using CloudFormation, to enable automated builds and deploys of whole, versioned stacks or stack layers. You have a 3-tier, mission-critical system. Which of the following is NOT a best practice for using CloudFormation in a continuous delivery environment?

and service-oriented architecture (SOA). http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/best-practices.html#organizingstacks

Which of these is not a CloudFormation Helper Script?

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/cfn-helper-scripts-reference.html

When thinking of AWS OpsWorks, which of the following is not an instance type you can allocate in a stack layer?

specified daily and weekly schedule. They allow your stack to automatically adjust the number of instances to accommodate predictable usage patterns. Load-based instances are automatically started and stopped by AWS number of instances to accommodate variations in incoming traffic. Load-based instances are available only for Linux- based stacks. http://docs.aws.amazon.com/opsworks/latest/userguide/welcome.html

You run a 2000-engineer organization. You are about to begin using AWS at a large scale for the first time. You want to integrate with your existing identity management system running on Microsoft Active Directory, because your organization is a power-user of Active Directory. How should you manage your AWS identities in the most simple manner?

functionality. Sync Domains do not exist; they are made up answers. AD Connector is a directory gateway that allows you to proxy directory requests to your on-premises Microsoft Active Directory, without caching any information in the cloud. AD Connector comes in 2 sizes; small and large. A small AD Connector is designed for smaller organizations of up to 500 users. A large AD Connector is designed for larger organizations of up to 5,000 users. https://aws.amazon.com/directoryservice/details/