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@@ -530,6 +530,112 @@ To prepare at best for the exam you should start with an overview of the concept
 
 <p>In this AWS whitepaper you'll find a sample exam. Here's a preview:</p>
 
+<h3>Which AWS based disaster recovery strategy will give you the best RTO?</h3>
+A) Deploy the Oracle database and the JBoss app server on EC2. Restore the RMAN Oracle backups from
+Amazon S3. Generate an EBS volume of static content from the Storage Gateway and attach it to the
+JBoss EC2 server.
+B) Deploy the Oracle database on RDS. Deploy the JBoss app server on EC2. Restore the RMAN Oracle
+backups from Amazon Glacier. Generate an EBS volume of static content from the Storage Gateway and
+attach it to the JBoss EC2 server.
+C) Deploy the Oracle database and the JBoss app server on EC2. Restore the RMAN Oracle backups from
+Amazon S3. Restore the static content by attaching an AWS Storage Gateway running on Amazon EC2
+as an iSCSI volume to the JBoss EC2 server.
+D) Deploy the Oracle database and the JBoss app server on EC2. Restore the RMAN Oracle backups from
+Amazon S3. Restore the static content from an AWS Storage Gateway-VTL running on Amazon EC2
+<h3>An ERP application is deployed in multiple Availability Zones in a single region. In the event of failure, the
+RTO must be less than 3 hours, and the RPO is 15 minutes. The customer realizes that data corruption
+occurred roughly 1.5 hours ago. Which DR strategy can be used to achieve this RTO and RPO in the
+event of this kind of failure?<h3>
+A) Take 15-minute DB backups stored in Amazon Glacier, with transaction logs stored in Amazon S3 every
+5 minutes.
+B) Use synchronous database master-slave replication between two Availability Zones.
+C) Take hourly DB backups to Amazon S3, with transaction logs stored in S3 every 5 minutes.
+D) Take hourly DB backups to an Amazon EC2 instance store volume, with transaction logs stored in
+Amazon S3 every 5 minutes.
+<h3>The Marketing Director in your company asked you to create a mobile app that lets users post sightings
+of good deeds known as random acts of kindness in 80-character summaries. You decided to write the
+application in JavaScript so that it would run on the broadest range of phones, browsers, and tablets.
+Your application should provide access to Amazon DynamoDB to store the good deed summaries. Initial
+testing of a prototype shows that there aren’t large spikes in usage. Which option provides the most costeffective
+and scalable architecture for this application?</h3>
+A) Provide the JavaScript client with temporary credentials from the Security Token Service using a Token
+Vending Machine (TVM) on an EC2 instance to provide signed credentials mapped to an Amazon Identity
+and Access Management (IAM) user allowing DynamoDB puts and S3 gets. You serve your mobile
+application out of an S3 bucket enabled as a web site. Your client updates DynamoDB.
+B) Register the application with a Web Identity Provider like Amazon, Google, or Facebook, create an IAM
+role for that provider, and set up permissions for the IAM role to allow S3 gets and DynamoDB puts. You
+serve your mobile application out of an S3 bucket enabled as a web site. Your client updates DynamoDB.
+C) Provide the JavaScript client with temporary credentials from the Security Token Service using a Token
+Vending Machine (TVM) to provide signed credentials mapped to an IAM user allowing DynamoDB puts.
+You serve your mobile application out of Apache EC2 instances that are load-balanced and autoscaled.
+Your EC2 instances are configured with an IAM role that allows DynamoDB puts. Your server updates
+DynamoDB.
+AWS Certified Solutions Architect – Professional Level
+Sample Exam Questions
+2
+D) Register the JavaScript application with a Web Identity Provider like Amazon, Google, or Facebook,
+create an IAM role for that provider, and set up permissions for the IAM role to allow DynamoDB puts.
+You serve your mobile application out of Apache EC2 instances that are load-balanced and autoscaled.
+Your EC2 instances are configured with an IAM role that allows DynamoDB puts. Your server updates
+DynamoDB.
+<h3>You are building a website that will retrieve and display highly sensitive information to users. The amount
+of traffic the site will receive is known and not expected to fluctuate. The site will leverage SSL to protect
+the communication between the clients and the web servers. Due to the nature of the site you are very
+concerned about the security of your SSL private key and want to ensure that the key cannot be
+accidentally or intentionally moved outside your environment. Additionally, while the data the site will
+display is stored on an encrypted EBS volume, you are also concerned that the web servers’ logs might
+contain some sensitive information; therefore, the logs must be stored so that they can only be decrypted
+by employees of your company. Which of these architectures meets all of the requirements?</h3>
+A) Use Elastic Load Balancing to distribute traffic to a set of web servers. To protect the SSL private key,
+upload the key to the load balancer and configure the load balancer to offload the SSL traffic. Write your
+web server logs to an ephemeral volume that has been encrypted using a randomly generated AES key.
+B) Use Elastic Load Balancing to distribute traffic to a set of web servers. Use TCP load balancing on the
+load balancer and configure your web servers to retrieve the private key from a private Amazon S3
+bucket on boot. Write your web server logs to a private Amazon S3 bucket using Amazon S3 server-side
+encryption.
+C) Use Elastic Load Balancing to distribute traffic to a set of web servers, configure the load balancer to
+perform TCP load balancing, use an AWS CloudHSM to perform the SSL transactions, and write your
+web server logs to a private Amazon S3 bucket using Amazon S3 server-side encryption.
+D) Use Elastic Load Balancing to distribute traffic to a set of web servers. Configure the load balancer to
+perform TCP load balancing, use an AWS CloudHSM to perform the SSL transactions, and write your
+web server logs to an ephemeral volume that has been encrypted using a randomly generated AES key.
+<h3>You are designing network connectivity for your fat client application. The application is designed for
+business travelers who must be able to connect to it from their hotel rooms, cafes, public Wi-Fi hotspots,
+and elsewhere on the Internet. You do not want to publish the application on the Internet.
+Which network design meets the above requirements while minimizing deployment and operational
+costs?</h3>
+A) Implement AWS Direct Connect, and create a private interface to your VPC. Create a public subnet and
+place your application servers in it.
+B) Implement Elastic Load Balancing with an SSL listener that terminates the back-end connection to the
+application.
+C) Configure an IPsec VPN connection, and provide the users with the configuration details. Create a public
+subnet in your VPC, and place your application servers in it.
+D) Configure an SSL VPN solution in a public subnet of your VPC, then install and configure SSL VPN client
+software on all user computers. Create a private subnet in your VPC and place your application servers in
+it.
+AWS Certified Solutions Architect – Professional Level
+Sample Exam Questions
+3
+<h3>Your company hosts an on-premises legacy engineering application with 900GB of data shared via a
+central file server. The engineering data consists of thousands of individual files ranging in size from
+megabytes to multiple gigabytes. Engineers typically modify 5-10 percent of the files a day. Your CTO
+would like to migrate this application to AWS, but only if the application can be migrated over the
+weekend to minimize user downtime. You calculate that it will take a minimum of 48 hours to transfer
+900GB of data using your company’s existing 45-Mbps Internet connection.
+After replicating the application’s environment in AWS, which option will allow you to move the
+application’s data to AWS without losing any data and within the given timeframe?</h3>
+A) Copy the data to Amazon S3 using multiple threads and multi-part upload for large files over the
+weekend, and work in parallel with your developers to reconfigure the replicated application environment
+to leverage Amazon S3 to serve the engineering files.
+B) Sync the application data to Amazon S3 starting a week before the migration, on Friday morning perform
+a final sync, and copy the entire data set to your AWS file server after the sync completes.
+C) Copy the application data to a 1-TB USB drive on Friday and immediately send overnight, with Saturday
+delivery, the USB drive to AWS Import/Export to be imported as an EBS volume, mount the resulting EBS
+volume to your AWS file server on Sunday.
+D) Leverage the AWS Storage Gateway to create a Gateway-Stored volume. On Friday copy the application
+data to the Storage Gateway volume. After the data has been copied, perform a snapshot of the volume
+and restore the volume as an EBS volume to be attached to your AWS file server on Sunday.
+
 
 
 Good Luck!
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