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?

An ERP application is deployed across multiple AZs in a single region. In the event of failure, the RecoveryTime Objective (RTO) must be less than 3 hours, and the Recovery Point Objective (RPO) must be 15 minutes
the customer realizes that data corruption occurred roughly 1.5 hours ago.
What DR strategy could be used to achieve this RTO and RPO in the event of this kind of failure?

A 3-tier e-commerce web application is current deployed on-premises and will be migrated to AWS for greater
scalability and elasticity The web server currently shares read-only data using a network distributed file system
The app server tier uses a clustering mechanism for discovery and shared session state that depends on IP
multicast The database tier uses shared-storage clustering to provide database fall over capability, and uses
several read slaves for scaling Data on all servers and the distributed file system directory is backed up weekly
to off-site tapes
Which AWS storage and database architecture meets the requirements of the application?

You’ve been hired to enhance the overall security posture for a very large e-commerce site They have a well
architected multi-tier application running in a VPC that uses ELBs in front of both the web and the app tier with
static assets served directly from S3 They are using a combination of RDS and DynamoOB for their dynamic
data and then archiving nightly into S3 for further processing with EMR They are concerned because they found
questionable log entries and suspect someone is attempting to gain unauthorized access.Which approach provides a cost effective scalable mitigation to this kind of attack?

You are migrating a legacy client-server application to AWS The application responds to a specific DNS domain
(e g www example com) and has a 2-tier architecture, with multiple application servers and a database server
Remote clients use TCP to connect to the application servers. The application servers need to know the IP
address of the clients in order to function properly and are currently taking that information from the TCP socket
A Multi-AZ RDS MySQL instance will be used for the database.
During the migration you can change the application code but you have to file a change request.
How would you implement the architecture on AWS In order to maximize scalability and high ability?

Your company plans to host a large donation website on Amazon Web Services (AWS). You anticipate a large
and undetermined amount of traffic that will create many database writes. To be certain that you do not drop
any writes to a database hosted on AWS. Which service should you use?

You are designing a data leak prevention solution for your VPC environment. You want your VPC Instances to
be able to access software depots and distributions on the Internet for product updates. The depots and
distributions are accessible via third party CONs by their URLs. You want to explicitly deny any other outbound
connections from your VPC instances to hosts on the internet.
Which of the following options would you consider?

Your company has recently extended its datacenter into a VPC on AVVS to add burst computing capacity as
needed Members of your Network Operations Center need to be able to go to the AWS Management Console
and administer Amazon EC2 instances as necessary You don’t want to create new IAM users for each NOC
member and make those users sign in again to the AWS Management Console Which option below will meet
the needs for your NOC members?

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 cycletool 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?

You require the ability to analyze a customer’s clickstream data on a website so they can do behavioral
analysis. Your customer needs to know what sequence of pages and ads their customer clicked on. This data
will be used in real time to modify the page layouts as customers click through the site to increase stickiness
and advertising click-through. Which option meets the requirements for captioning and analyzing this data?