A read only news reporting site with a combined web and application tier and a database tier that receives large
and unpredictable traffic demands must be able to respond to these traffic fluctuations automatically. What
AWS services should be used meet these requirements?

Your startup wants to implement an order fulfillment process for selling a personalized gadget that needs an
average of 3-4 days to produce with some orders taking up to 6 months you expect 10 orders per day on your
first day. 1000 orders per day after 6 months and 10,000 orders after 12 months.
Orders coming in are checked for consistency men dispatched to your manufacturing plant for production
quality control packaging shipment and payment processing If the product does not meet the quality standards
at any stage of the process employees may force the process to repeat a step Customers are notified via email
about order status and any critical issues with their orders such as payment failure.
Your case architecture includes AWS Elastic Beanstalk for your website with an RDS MySQL instance for
customer data and orders.
How can you implement the order fulfillment process while making sure that the emails are delivered reliably?

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 running your application in multiple regions, which option will support this application’s
requirements?

You are implementing a URL whitelisting system for a company that wants to restrict outbound HTTP’S
connections to specific domains from their EC2-hosted applications you deploy a single EC2 instance running
proxy software and configure It to accept traffic from all subnets and EC2 instances in the VPC. You configure
the proxy to only pass through traffic to domains that you define in its whitelist configuration You have a nightly
maintenance window or 10 minutes where ail instances fetch new software updates. Each update Is about
200MB In size and there are 500 instances In the VPC that routinely fetch updates After a few days you notice
that some machines are failing to successfully download some, but not all of their updates within the
maintenance window. The download URLs used for these updates are correctly listed in the proxy’s whitelist
configuration and you are able to access them manually using a web browser on the instances. What might be
happening? (Choose 2 answers)

A benefits enrollment company is hosting a 3-tier web application running in a VPC on AWS which includes a
NAT (Network Address Translation) instance in the public Web tier. There is enough provisioned capacity for
the expected workload tor the new fiscal year benefit enrollment period plus some extra overhead Enrollment
proceeds nicely for two days and then the web tier becomes unresponsive, upon investigation using
CloudWatch and other monitoring tools it is discovered that there is an extremely large and unanticipated
amount of inbound traffic coming from a set of 15 specific IP addresses over port 80 from a country where the
benefits company has no customers. The web tier instances are so overloaded that benefit enrollment
administrators cannot even SSH into them. Which activity would be useful in defending against this attack?

Your company produces customer commissioned one-of-a-kind skiing helmets combining nigh fashion with
custom technical enhancements Customers can show off their Individuality on the ski slopes and have access
to head-up-displays. GPS rear-view cams and any other technical innovation they wish to embed in the helmet.
The current manufacturing process is data rich and complex including assessments to ensure that the custom
electronics and materials used to assemble the helmets are to the highest standards Assessments are a
mixture of human and automated assessments you need to add a new set of assessment to model the failure
modes of the custom electronics using GPUs with CUDA. across a cluster of servers with low latency
networking.
What architecture would allow you to automate the existing process using a hybrid approach and ensure that
the architecture can support the evolution of processes over time?

You are responsible for a legacy web application whose server environment is approaching end of life You
would like to migrate this application to AWS as quickly as possible, since the application environment currently
has the following limitations:
The VM’s single 10GB VMDK is almost full
Me virtual network interface still uses the 10Mbps driver, which leaves your 100Mbps WAN connection
completely underutilized
It is currently running on a highly customized. Windows VM within a VMware environment:
You do not have me installation media
This is a mission critical application with an RTO (Recovery Time Objective) of 8 hours. RPO (Recovery Point
Objective) of 1 hour. How could you best migrate this application to AWS while meeting your business
continuity requirements?

You are designing Internet connectivity for your VPC. The Web servers must be available on the Internet. The
application must have a highly available architecture.
Which alternatives should you consider? (Choose 2 answers)

You have deployed a web application targeting a global audience across multiple AWS Regions under the
domain name.example.com. You decide to use Route53 Latency-Based Routing to serve web requests to
users from the region closest to the user. To provide business continuity in the event of server downtime you
configure weighted record sets associated with two web servers in separate Availability Zones per region.
Dunning a DR test you notice that when you disable all web servers in one of the regions Route53 does not
automatically direct all users to the other region. What could be happening? (Choose 2 answers)

You have launched an EC2 instance with four (4) 500 GB EBS Provisioned IOPS volumes attached The EC2
Instance Is EBS-Optimized and supports 500 Mbps throughput between EC2 and EBS The two EBS volumes
are configured as a single RAID o device, and each Provisioned IOPS volume is provisioned with 4.000 IOPS
(4 000 16KB reads or writes) for a total of 16.000 random IOPS on the instance The EC2 Instance initially
delivers the expected 16 000 IOPS random read and write performance Sometime later in order to increase the
total random I/O performance of the instance, you add an additional two 500 GB EBS Provisioned IOPS
volumes to the RAID Each volume Is provisioned to 4.000 IOPs like the original four for a total of 24.000 IOPS
on the EC2 instance Monitoring shows that the EC2 instance CPU utilization increased from 50% to 70%. but
the total random IOPS measured at the instance level does not increase at all.
What is the problem and a valid solution?