| Question.21 Which cloud architectural concept is supported by a system that can scale in terms of users, traffic, or data quantity without sacrificing performance? (A) Think parallel (B) Implement elasticity (C) Decouple your components (D) Design for failure |
21. Click here to View Answer
Answer is (B) Implement elasticity
Elasticity is used just to meet the sudden up and down in the workload for a small period of time, Amazon Web Services defines Elasticity as “The ability to acquire resources as you need them and release resources when you no longer need them.”
Reference:
https://aws.amazon.com/blogs/aws/new-whitepaper-architecting-for-the-cloud-best-practices/
| Question.22 The following describes an application that spans various Availability Zones: (A) being highly available (B) having global reach (C) using an economy of scale (D) having elasticity |
22. Click here to View Answer
Answer is (A) being highly available
| Question.23 What are the advantages of AWS Cloud elasticity? (A) Ensure web traffic is automatically spread across multiple AWS Regions. (B) Minimize storage costs by automatically archiving log data. (C) Enable AWS to automatically select the most cost-effective services. (D) Automatically adjust the required compute capacity to maintain consistent performance. |
23. Click here to View Answer
Answer is (D) Automatically adjust the required compute capacity to maintain consistent performance.
Elasticity: once a system is scalable, elasticity means that there will be some “auto-scaling” so that the system can scale based on the load. This is “cloud-friendly”: pay-per-use, match demand, optimize costs
Reference:
https://aimconsulting.com/insights/blog/the-elastic-cloud-opportunity/
| Question.24 Which of the following IT responsibilities may AWS relieve a company’s IT team of? (Select two.) (A) Patching database software (B) Storage capacity planning (C) Creating database schemas (D) Setting up access controls for data (E) Writing application code |
24. Click here to View Answer
Answer are; (A) Patching database software and (B) Storage capacity planning
One of AWS advantages – users do not need to ques capacity or plan it. A schema is part of your DATA, and the client owns the DATA
| Question.25 What is AWS accountable for under the AWS shared responsibility model? (A) Configuring Amazon VPC (B) Managing application code (C) Maintaining application traffic (D) Managing the network infrastructure |
25. Click here to View Answer
Answer is (D) Managing the network infrastructure