Top 15 questions AWS-Solution-Architect-Associate for consumer (181 to 195)

Exam Code: AWS-Solution-Architect-Associate (Practice Exam Latest Test Questions VCE PDF)
Exam Name: AWS Certified Solutions Architect - Associate
Certification Provider: Amazon
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2016 Mar AWS-Solution-Architect-Associate Study Guide Questions:

Q181. Amazon SWF is designed to help users...

A. Design graphical user interface interactions

B. Manage user identification and authorization

C. Store Web content

D. Coordinate synchronous and asynchronous tasks which are distributed and fault tolerant.

Answer: D

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Q191. Your application is using an ELB in front of an Auto Scaling group of web/application servers deployed across two AZs and a Multi-AZ RDS Instance for data persistence.

The database CPU is often above 80% usage and 90% of I/O operations on the database are reads. To improve performance you recently added a single-node Memcached ElastiCache Cluster to cache frequent DB query results. In the next weeks the overall workload is expected to grow by 30%.

Do you need to change anything in the architecture to maintain the high availability or the application with the anticipated additional load'* Why?

A. Yes. you should deploy two Memcached ElastiCache Clusters in different AZs because the ROS Instance will not Be able to handle the load It me cache node fails.

B. No. if the cache node fails the automated ElastiCache node recovery feature will prevent any availability impact.

C. Yes you should deploy the Memcached ElastiCache Cluster with two nodes in the same AZ as the RDS DB master instance to handle the load if one cache node fails.

D. No if the cache node fails you can always get the same data from the DB without having any availability impact.

Answer: B

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