Your company hosts a social media site supporting users in multiple countries. You have been asked to provide
a highly available design tor the application that leverages multiple regions tor the most recently accessed
content and latency sensitive portions of the wet) site The most latency sensitive component of the application
involves reading user preferences to support web site personalization and ad selection. In addition to runningyour application in multiple regions, which option will support this application’s requirements?

Your system recently experienced down time during the troubleshooting process. You found that a new
administrator mistakenly terminated several production EC2 instances. Which of the following strategies will
help prevent a similar situation in the future? The administrator still must be able to:
– launch, start stop, and terminate development resources.
– launch and start production instances.

A customer has established an AWS Direct Connect connection to AWS. The link is up and routes are being
advertised from the customer’s end, however the customer is unable to connect from EC2 instances inside its
VPC to servers residing in its datacenter. Which of the following options provide a viable solution to remedy this
situation? Choose 2 answers.

Your company previously configured a heavily used, dynamically routed VPN connection between your onpremises data center and AWS. You recently provisioned a DirectConnect connection and would like to start
using the new connection. After configuring DirectConnect settings in the AWS Console, which of the following
options win provide the most seamless transition for your users?

A web company is looking to implement an external payment service into their highly available application
deployed in a VPC Their application EC2 instances are behind a public lacing ELB Auto scaling is used to add
additional instances as traffic increases under normal load the application runs 2 instances in the Auto Scaling
group but at peak it can scale 3x in size. The application instances need to communicate with the payment
service over the Internet which requires whitelisting of all public IP addresses used to communicate with it. A
maximum of 4 whitelisting IP addresses are allowed at a time and can be added through an API. How should
they architect their solution?

You are designing the network infrastructure for an application server in Amazon VPC Users will access all the
application instances from the Internet as well as from an on-premises network The on-premises network is
connected to your VPC over an AWS Direct Connect link. How would you design routing to meet the above
requirements?

You are implementing AWS Direct Connect. You intend to use AWS public service end points such as Amazon
S3, across the AWS Direct Connect link. You want other Internet traffic to use your existing link to an Internet
Service Provider. What is the correct way to configure AWS Direct connect for access to services such as
Amazon S3?

You have deployed a three-tier web application in a VPC with a CIOR block of 10 0 0 0/28 You initially deploy
two web servers, two application servers, two database servers and one NAT instance for a total of seven EC2
instances The web, Application and database servers are deployed across two availability zones (AZs). You
also deploy an ELB in front of the two web servers, and use Route53 for DNS Web (raffle gradually increases in
the first few days following the deployment, so you attempt to double the number of instances in each tier of the
application to handle the new load unfortunately some of these new instances fail to launch. Which of the
following could De the root caused? (Choose 2 answers)

You’ve been brought in as solutions architect to assist an enterprise customer with their migration of an ecommerce platform to Amazon Virtual Private Cloud (VPC). The previous architect has already deployed a 3-
tier VPC.
The configuration is as follows:

You are now ready to begin deploying EC2 instances into the VPC. Web servers must have direct access to the
Internet. Application and database servers cannot have direct access to the Internet. Which configuration below
will allow you the ability to remotely administer your application and database servers, as well as allow these
servers to retrieve updates from the Internet?

You have a load balancer configured for VPC, and all back-end Amazon EC2 instances are in service.
However, your web browser times out when connecting to the load balancer’s DNS name. Which options are
probable causes of this behavior? Choose 2 answers.