What does Amazon SWF stand for?

Company B is launching a new game app for mobile devices. Users will log into the game using their existing
social media account to streamline data capture. Company B would like to directly save player data and scoring
information from the mobile app to a DynamoDS table named Score Data When a user saves their game the
progress data will be stored to the Game state S3 bucket. What is the best approach for storing data to
DynamoDB and S3?

Your company runs a customer facing event registration site This site is built with a 3-tier architecture with web
and application tier servers and a MySQL database The application requires 6 web tier servers and 6
application tier servers for normal operation, but can run on a minimum of 65% server capacity and a single
MySQL database. When deploying this application in a region with three availability zones (AZs) which
architecture provides high availability?

Your customer is willing to consolidate their log streams (access logs application logs security logs etc.) in one
single system. Once consolidated, the customer wants to analyze these logs in real time based on heuristics.
From time to time, the customer needs to validate heuristics, which requires going back to data samples
extracted from the last 12 hours?
What is the best approach to meet your customer’s requirements?

An AWS customer is deploying an application mat is composed of an AutoScaling group of EC2 Instances.
The customers security policy requires that every outbound connection from these instances to any other
service within the customers
Virtual Private Cloud must be authenticated using a unique x 509 certificate that contains the specific instanceid.
In addition an x 509 certificates must Designed by the customer’s Key management service in order to be
trusted for authentication.
Which of the following configurations will support these requirements?

A web design company currently runs several FTP servers that their 250 customers use to upload and
download large graphic files They wish to move this system to AWS to make it more scalable, but they wish to
maintain customer privacy and Keep costs to a minimum.
What AWS architecture would you recommend?

An AWS customer runs a public blogging website. The site users upload two million blog entries a month The
average blog entry size is 200 KB. The access rate to blog entries drops to negligible 6 months after publication
and users rarely access a blog entry 1 year after publication. Additionally, blog entries have a high update rate
during the first 3 months following publication, this drops to no updates after 6 months. The customer wants to
use CloudFront to improve his user’s load times. Which of the following recommendations would you make to
the customer?

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 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)

A company is building a voting system for a popular TV show, viewers win watch the performances then visit
the show’s website to vote for their favorite performer. It is expected that in a short period of time after the show
has finished the site will receive millions of visitors. The visitors will first login to the site using their Amazon.com
credentials and then submit their vote. After the voting is completed the page will display the vote totals. The
company needs to build the site such that can handle the rapid influx of traffic while maintaining good
performance but also wants to keep costs to a minimum. Which of the design patterns below should they use?