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)

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’?

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?

You 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)

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 a
regular 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?

You are designing an intrusion detection prevention (IDS/IPS) solution for a customer web application in a
single VPC. You are considering the options for implementing IOS IPS protection for traffic coming from the
Internet.
Which of the following options would you consider? (Choose 2 answers)

Your company is getting ready to do a major public announcement of a social media site on AWS. The website
is running on EC2 instances deployed across multiple Availability Zones with a Multi-AZ RDS MySQL Extra
Large DB Instance. The site performs a high number of small reads and writes per second and relies on an
eventual consistency model. After comprehensive tests you discover that there is read contention on RDS
MySQL.
Which are the best approaches to meet these requirements? (Choose 2 answers)