Practice Test 4 | AWS Certified Solutions Architect Associate | SAA-C03 | Dumps | Mock Test
You currently have an EC2 instance hosting a web application. It’s expected that in the coming months the number of users accessing the web application will increase. How can we provide high availability to the web application? Choose 2 answers from the options given below.
A. Set up your web app on more EC2 instances and set them behind an Elastic Load Balancer.
B. Set up an ElastiCache in front of the EC2 instance.
C. Use Route53 to route requests to the Elastic Load Balancer.
D. Set up DynamoDB behind your EC2 Instances.
Explanation:
Answer – A and C
The Elastic Load Balancer can be used to distribute traffic to EC2 Instances. So, to add elasticity to your setup, one can either do this, or even use Route 53. In Route 53, you can setup weighted routing policies to distribute requests to multiple EC2 Instances.
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Note:
- Option B can’t be the correct answer to this question.
The reason is here, Amazon ElastiCache improves application performance by storing critical pieces of data in memory for fast access. You can use this caching to significantly improve latency and throughput for many read-heavy application workloads. so, will not help in elasticity
- And option D will not help in elasticity for your application.
Hence, the correct answer is option A and C.
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