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?

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’?

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 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 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 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?

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?

A large real-estate brokerage is exploring the option o( adding a cost-effective location based
alert to their existing mobile application The application backend infrastructure currently runs
on AWS Users who opt in to this service will receive alerts on their mobile device regarding
real-estate otters in proximity to their location. For the alerts to be relevant delivery time
needs to be in the low minute count the existing mobile app has 5 million users across the us
Which one of the following architectural suggestions would you make to the customer?

You need a persistent and durable storage to trace call activity of an IVR (Interactive Voice
Response) system. Call duration is mostly in the 2-3 minutes timeframe. Each traced call can
be either active or terminated. An external application needs to know each minute the list of

currently active calls, which are usually a few calls/second. Put once per month there is a
periodic peak up to 1000 calls/second for a few hours. The system is open 24/7 and any
downtime should be avoided. Historical data is periodically archived to files. Cost saving is a
priority for this project. What database implementation would better fit this scenario, keeping
costs as low as possible?

Your company is in the process of developing a next generation pet collar that collects
biometric information to assist families with promoting healthy lifestyles for their pets Each
collar will push 30kb of biometric data In JSON format every 2 seconds to a collection
platform that will process and analyze the data providing health trending information back to
the pet owners and veterinarians via a web portal Management has tasked you to architect
the collection platform ensuring the following requirements are met.
Provide the ability for real-time analytics of the inbound biometric data Ensure processing of
the biometric data is highly durable. Elastic and parallel The results of the analytic processing
should be persisted for data mining Which architecture outlined below win meet the initial
requirements for the collection platform?