Your company previously configured a heavily used, dynamically routed VPN connection between your on-premises 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 corporate web application is deployed within an Amazon Virtual Private Cloud (VPC) and is connected to the
corporate data center via an IPSec VPN. The application must authenticate against the on-premises LDAP
server. After authentication, each logged-in user can only access an Amazon Simple Storage Space (S3)
keyspace specific to that user.
Which two approaches can satisfy these objectives? (Choose 2 answers)

You are running a news website in the eu-west-1 region that updates every 15 minutes. The website has a
world-wide audience it uses an Auto Scaling group behind an Elastic Load Balancer and an Amazon RDS
database Static content resides on Amazon S3, and is distributed through Amazon CloudFront. Your Auto
Scaling group is set to trigger a scale up event at 60% CPU utilization, you use an Amazon RDS extra large DB
instance with 10.000 Provisioned IOPS its CPU utilization is around 80%. While freeable memory is in the 2 GB
range.
Web analytics reports show that the average load time of your web pages is around 1.5 to 2 seconds, but your
SEO consultant wants to bring down the average load time to under 0.5 seconds.
How would you improve page load times for your users? (Choose 3 answers)

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 website is serving on-demand training videos to your workforce. Videos are uploaded monthly in high
resolution MP4 format. Your workforce is distributed globally often on the move and using company-provided
tablets that require the HTTP Live Streaming (HLS) protocol to watch a video. Your company has no video
transcoding expertise and it required you may need to pay for a consultant.
How do you implement the most cost-efficient architecture without compromising high availability and quality of
video delivery’?

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?

Your must architect the migration of a web application to AWS. The application consists of Linux web servers
running a custom web server. You are required to save the logs generated from the application to a durable
location.
What options could you select to migrate the application to AWS? (Choose 2)

You are designing a social media site and are considering how to mitigate distributed denial-of-service (DDoS)
attacks. Which of the below are viable mitigation techniques? (Choose 3 answers)

An International company has deployed a multi-tier web application that relies on DynamoDB in a single region
For regulatory reasons they need disaster recovery capability In a separate region with a Recovery Time
Objective of 2 hours and a Recovery Point Objective of 24 hours. They should synchronize their data on aregular basis and be able to provision me web application rapidly using CloudFormation.
The objective is to minimize changes to the existing web application, control the throughput of DynamoDB used
for the synchronization of data and synchronize only the modified elements.
Which design would you choose to meet these requirements?

Refer to the architecture diagram above of a batch processing solution using Simple Queue Service (SQS) to
set up a message queue between EC2 instances which are used as batch processors Cloud Watch monitors
the number of Job requests (queued messages) and an Auto Scaling group adds or deletes batch servers
automatically based on parameters set in Cloud Watch alarms. You can use this architecture to implement
which of the following features in a cost effective and efficient manner?