A company is building a voting system for a popular TV show, viewers win watch the performances then visit
the show’s website to vote for their favorite performer. It is expected that in a short period of time after the
show has finished the site will receive millions of visitors. The visitors will first login to the site using their
Amazon.com credentials and then submit their vote. After the voting is completed the page will display the
vote totals. The company needs to build the site such that can handle the rapid influx of traffic while
maintaining good performance but also wants to keep costs to a minimum. Which of the design patterns
below should they use?

You are developing a new mobile application and are considering storing user preferences in AWS.2w This
would provide a more uniform cross-device experience to users using multiple mobile devices to access the
application. The preference data for each user is estimated to be 50KB in size Additionally 5 million customers
are expected to use the application on a regular basis. The solution needs to be cost-effective, highly available,
scalable and secure, how would you design a solution to meet the above requirements?

Your team has a tomcat-based Java application you need to deploy into development, test and production
environments. After some research, you opt to use Elastic Beanstalk due to its tight integration with your
developer tools and RDS due to its ease of management. Your QA team lead points out that you need to roll a
sanitized set of production data into your environment on a nightly basis. Similarly, other software teams in
your org want access to that same restored data via their EC2 instances in your VPC .The optimal setup for
persistence and security that meets the above requirements would be the following.

You are looking to migrate your Development (Dev) and Test environments to AWS. You have decided to use
separate AWS accounts to host each environment. You plan to link each accounts bill to a Master AWS account
using Consolidated Billing. To make sure you Keep within budget you would like to implement a way for
administrators in the Master account to have access to stop, delete and/or terminate resources in both the
Dev and Test accounts. Identify which option will allow you to achieve this goal.

Your customer is willing to consolidate their log streams (access logs application logs security logs etc.) in one
single system. Once consolidated, the customer wants to analyze these logs in real time based on heuristics.
From time to time, the customer needs to validate heuristics, which requires going back to data samples
extracted from the last 12 hours?
What is the best approach to meet your customer’s requirements?

You deployed your company website using Elastic Beanstalk and you enabled log file rotation to S3. An Elastic
Map Reduce job is periodically analyzing the logs on S3 to build a usage dashboard that you share with your
CIO. You recently improved overall performance of the website using Cloud Front for dynamic content delivery
and your website as the origin.
After this architectural change, the usage dashboard shows that the traffic on your website dropped by an
order of magnitude. How do you fix your usage dashboard’?

You are running a successful multitier web application on AWS and your marketing department has asked you
to add a reporting tier to the application. The reporting tier will aggregate and publish status reports every 30
minutes from user-generated information that is being stored in your web application s database. You are
currently running a Multi-AZ RDS MySQL instance for the database tier. You also have implemented Elasticache
as a database caching layer between the application tier and database tier. Please select the answer that will
allow you to successfully implement the reporting tier with as little impact as possible to your database.

A web company is looking to implement an intrusion detection and prevention system into their deployed
VPC. This platform should have the ability to scale to thousands of instances running inside of the VPC.
How should they architect their solution to achieve these goals?

A web-startup runs its very successful social news application on Amazon EC2 with an Elastic Load Balancer, an
Auto-Scaling group of Java/Tomcat application-servers, and DynamoDB as data store. The main webapplication best runs on m2 x large instances since it is highly memory- bound Each new deployment requires
semi-automated creation and testing of a new AMI for the application servers which takes quite a while ana is
therefore only done once per week.
Recently, a new chat feature has been implemented in nodejs and wails to be integrated in the architecture.
First tests show that the new component is CPU bound Because the company has some experience with using
Chef, they decided to streamline the deployment process and use AWS Ops Works as an application life cycle
tool to simplify management of the application and reduce the deployment cycles.
What configuration in AWS Ops Works is necessary to integrate the new chat module in the most cost-efficient
and flexible way?

Your firm has uploaded a large amount of aerial image data to S3 In the past, in your on-premises
environment, you used a dedicated group of servers to oaten process this data and used Rabbit MQ – An open
source messaging system to get job information to the servers. Once processed the data would go to tape and
be shipped offsite. Your manager told you to stay with the current design, and leverage AWS archival storage
and messaging services to minimize cost. Which is correct?