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README.md
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README.md
@ -530,7 +530,8 @@ To prepare at best for the exam you should start with an overview of the concept
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<p>In this AWS whitepaper you'll find a sample exam. Here's a preview:</p>
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<h3>Which AWS based disaster recovery strategy will give you the best RTO?</h3>
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> Which AWS based disaster recovery strategy will give you the best RTO?
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A) Deploy the Oracle database and the JBoss app server on EC2. Restore the RMAN Oracle backups from
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Amazon S3. Generate an EBS volume of static content from the Storage Gateway and attach it to the
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JBoss EC2 server.
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@ -542,22 +543,24 @@ Amazon S3. Restore the static content by attaching an AWS Storage Gateway runnin
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as an iSCSI volume to the JBoss EC2 server.
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D) Deploy the Oracle database and the JBoss app server on EC2. Restore the RMAN Oracle backups from
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Amazon S3. Restore the static content from an AWS Storage Gateway-VTL running on Amazon EC2
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<h3>An ERP application is deployed in multiple Availability Zones in a single region. In the event of failure, the
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> An ERP application is deployed in multiple Availability Zones in a single region. In the event of failure, the
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RTO must be less than 3 hours, and the RPO is 15 minutes. The customer realizes that data corruption
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occurred roughly 1.5 hours ago. Which DR strategy can be used to achieve this RTO and RPO in the
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event of this kind of failure?<h3>
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event of this kind of failure?
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A) Take 15-minute DB backups stored in Amazon Glacier, with transaction logs stored in Amazon S3 every
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5 minutes.
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B) Use synchronous database master-slave replication between two Availability Zones.
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C) Take hourly DB backups to Amazon S3, with transaction logs stored in S3 every 5 minutes.
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D) Take hourly DB backups to an Amazon EC2 instance store volume, with transaction logs stored in
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Amazon S3 every 5 minutes.
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<h3>The Marketing Director in your company asked you to create a mobile app that lets users post sightings
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> The Marketing Director in your company asked you to create a mobile app that lets users post sightings
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of good deeds known as random acts of kindness in 80-character summaries. You decided to write the
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application in JavaScript so that it would run on the broadest range of phones, browsers, and tablets.
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Your application should provide access to Amazon DynamoDB to store the good deed summaries. Initial
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testing of a prototype shows that there aren’t large spikes in usage. Which option provides the most costeffective
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and scalable architecture for this application?</h3>
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and scalable architecture for this application?
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A) Provide the JavaScript client with temporary credentials from the Security Token Service using a Token
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Vending Machine (TVM) on an EC2 instance to provide signed credentials mapped to an Amazon Identity
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and Access Management (IAM) user allowing DynamoDB puts and S3 gets. You serve your mobile
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@ -578,14 +581,15 @@ create an IAM role for that provider, and set up permissions for the IAM role to
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You serve your mobile application out of Apache EC2 instances that are load-balanced and autoscaled.
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Your EC2 instances are configured with an IAM role that allows DynamoDB puts. Your server updates
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DynamoDB.
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<h3>You are building a website that will retrieve and display highly sensitive information to users. The amount
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> You are building a website that will retrieve and display highly sensitive information to users. The amount
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of traffic the site will receive is known and not expected to fluctuate. The site will leverage SSL to protect
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the communication between the clients and the web servers. Due to the nature of the site you are very
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concerned about the security of your SSL private key and want to ensure that the key cannot be
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accidentally or intentionally moved outside your environment. Additionally, while the data the site will
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display is stored on an encrypted EBS volume, you are also concerned that the web servers’ logs might
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contain some sensitive information; therefore, the logs must be stored so that they can only be decrypted
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by employees of your company. Which of these architectures meets all of the requirements?</h3>
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by employees of your company. Which of these architectures meets all of the requirements?
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A) Use Elastic Load Balancing to distribute traffic to a set of web servers. To protect the SSL private key,
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upload the key to the load balancer and configure the load balancer to offload the SSL traffic. Write your
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web server logs to an ephemeral volume that has been encrypted using a randomly generated AES key.
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@ -599,11 +603,13 @@ web server logs to a private Amazon S3 bucket using Amazon S3 server-side encryp
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D) Use Elastic Load Balancing to distribute traffic to a set of web servers. Configure the load balancer to
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perform TCP load balancing, use an AWS CloudHSM to perform the SSL transactions, and write your
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web server logs to an ephemeral volume that has been encrypted using a randomly generated AES key.
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<h3>You are designing network connectivity for your fat client application. The application is designed for
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> You are designing network connectivity for your fat client application. The application is designed for
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business travelers who must be able to connect to it from their hotel rooms, cafes, public Wi-Fi hotspots,
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and elsewhere on the Internet. You do not want to publish the application on the Internet.
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Which network design meets the above requirements while minimizing deployment and operational
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costs?</h3>
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costs?
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A) Implement AWS Direct Connect, and create a private interface to your VPC. Create a public subnet and
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place your application servers in it.
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B) Implement Elastic Load Balancing with an SSL listener that terminates the back-end connection to the
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@ -616,7 +622,7 @@ it.
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AWS Certified Solutions Architect – Professional Level
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Sample Exam Questions
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3
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<h4>Your company hosts an on-premises legacy engineering application with 900GB of data shared via a
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> <h4>Your company hosts an on-premises legacy engineering application with 900GB of data shared via a
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central file server. The engineering data consists of thousands of individual files ranging in size from
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megabytes to multiple gigabytes. Engineers typically modify 5-10 percent of the files a day. Your CTO
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would like to migrate this application to AWS, but only if the application can be migrated over the
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@ -624,11 +630,13 @@ weekend to minimize user downtime. You calculate that it will take a minimum of
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900GB of data using your company’s existing 45-Mbps Internet connection.
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After replicating the application’s environment in AWS, which option will allow you to move the
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application’s data to AWS without losing any data and within the given timeframe?</h4>
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A) Copy the data to Amazon S3 using multiple threads and multi-part upload for large files over the
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weekend, and work in parallel with your developers to reconfigure the replicated application environment
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to leverage Amazon S3 to serve the engineering files.<br>
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<code><u>B) Sync the application data to Amazon S3 starting a week before the migration, on Friday morning perform
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a final sync, and copy the entire data set to your AWS file server after the sync completes.</u></code></br>
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<code>B) Sync the application data to Amazon S3 starting a week before the migration, on Friday morning perform</span>
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a final sync, and copy the entire data set to your AWS file server after the sync completes.</code>
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C) Copy the application data to a 1-TB USB drive on Friday and immediately send overnight, with Saturday
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delivery, the USB drive to AWS Import/Export to be imported as an EBS volume, mount the resulting EBS
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volume to your AWS file server on Sunday.<br>
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