A company wants to create an application that will transmit protected health information (PHI) to thousands of service
consumers in different AWS accounts. The application servers will sit in private VPC subnets. The routing for the application
must be fault tolerant.
What should be done to meet these requirements?
A
A Solutions Architect plans to migrate NAT instances to NAT gateway. The Architect has NAT instances with scripts to
manage high availability.
What is the MOST efficient method to achieve similar high availability with NAT gateway?
B
A Solutions Architect is designing an architecture for a mobile gaming application. The application is expected to be very
popular. The Architect needs to prevent the Amazon RDS MySQL database from becoming a bottleneck due to frequently
accessed queries. Which service or feature should the Architect add to prevent a bottleneck?
D
A Solutions Architect is designing a multi-tier application consisting of an Application Load Balancer, an Amazon RDS
database instance, and an Auto Scaling group on Amazon EC2 instances. Each tier is in a separate subnet. There are some
EC2 instances in the subnet that belong to another application. The RDS database instance should accept traffic only from
the EC2 instances in the Auto Scaling group.
What should be done to meet these requirements?
D
A company is designing a failover strategy in Amazon Route 53 for its resources between two AWS Regions. The company
must have the ability to route a users traffic to the region with least latency, and if both regions are healthy, Route 53 should
route traffic to resources in both regions.
Which strategy should the Solutions Architect recommend?
A
A Solutions Architect is building a WordPress-based web application hosted on AWS using Amazon EC2. This application
serves as a blog for an international internet security company. The application must be geographically redundant and
scalable. It must separate the public Amazon EC2 web servers from the private Amazon RDS database, it must be highly
available, and it must support dynamic port routing.
Which combination of AWS services or capabilities will meet these requirements?
B
A company uses Amazon S3 for storing a variety of files. A Solutions Architect needs to design a feature that will allow users
to instantly restore any deleted files within 30 days of deletion.
Which is the MOST cost-efficient solution?
D
Explanation:
Reference https://aws.amazon.com/premiumsupport/knowledge-center/s3-undelete-configuration/
A Solutions Architect is designing a three-tier web application. The Architect wants to restrict access to the database tier to
accept traffic from the application servers only. However, these application servers are in an Auto Scaling group and may
vary in quantity.
How should the Architect configure the database servers to meet the requirements?
B
A Solutions Architect is designing a solution that will include a database in Amazon RDS. Corporate security policy
mandates that the database, its logs, and its backups are all encrypted.
Which is the MOST efficient option to fulfill the security policy using Amazon RDS?
C
An organization must process a stream of large-volume hashtag data in real time and needs to run custom SQL queries on
the data to get insights on certain tags. The organization needs this solution to be elastic and does not want to manage
clusters.
Which of the following AWS services meets these requirements?
D