A company's ecommerce website is experiencing sudden and significant traffic changes that are causing performance problems in the company database. Users report that attempts to access the website are taking too long.
A developer needs to implement a caching layer by using Amazon ElastiCache. The website must be responsive, no matter which product a user views Updates to product information and prices must be strongly consistent.
Which cache-writing strategy will meet these requirements?

• A.Write to the backend first. Then update the TTL of the item in the cache=
• B.Write to the cache directly Synchronize the backend later
• C.Write to the backend first Wait for the cache to expire
• D.Write to the cache and the backend at the same time

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Which AWS tools assist with estimating costs? (Select three.)

• A.Detailed billing report
• B.Cost allocation tags
• C.AWS Simple Monthly Calculator
• D.AWS Total Cost of Ownership (TCO) Calculator
• E.Cost Estimator

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An external auditor has requested that a company provide a list of all its IAM users, including the status of users' credentials and access keys.
What is the SIMPLEST way to provide this information?

• A.Download the AWS Trusted Advisor report, then provide the report to the auditor
• B.take a screenshot of each user's page in the AWS Management Console, then provide the screenshots to the auditor
• C.Create an IAM user account for the auditor, granting the auditor administrator permissions
• D.Download the IAM credential report, then provide the report to the auditor

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Which approach will enhance a user's security on AWS?

• A.Monitor application-specific information with AWS X-Ray.
• B.Use Multi-AZ deployments with Amazon RDS.
• C.Create a hybrid architecture by using AWS Direct Connect.
• D.Encrypt data by using AWS Key Management Service (AWS KMS).

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Which AWS service offers on-demand access to AWS security and compliance reports?

• A.AWS CloudTrail
• B.AWS Artifact
• C.AWS Health
• D.Amazon CloudWatch

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