You have been asked to design the storage layer for an application.The application requires disk performance of at least 100,000 IOPS.In addition, the storage layer must be able to survive the loss of an individual disk, EC2 instance, or Availability Zone without any data loss.The volume you provide must have a capacity of at least 3 TB.Which of the following designs will meet these objectives?Read More →
A company has an AWS account and allows a third-party contractor, who uses another AWS account, to assume certain IAM roles.The company wants to ensure that IAM roles can be assumed by the contractor only if the contractor has multi-factor authentication enabled on their IAM user accounts.What should the company do to accomplish this?Read More →
A workload has been moved from a data center to AWS.Previously, vulnerability scans were performed nightly by an external testing company.There is a mandate to continue the vulnerability scans in the AWS environment with third-party testing occurring at least once each month.What solution allows the vulnerability scans to continue without violating the AWS Acceptable Use Policy?Read More →
A university wants to develop a targeted recruitment strategy to increase new student enrollment.A data scientist gathers information about the academic performance history of students.The data scientist wants to use the data to build student profiles.The university will use the profiles to direct resources to recruit students who are likely to enroll in the university.Which combination of steps should the data scientist take to predict whether a particular student applicant is likely to enroll in the university? (Choose two.)Read More →
The DNS provider that hosts a company’s domain name records is experiencing outages that cause service disruption for a website running on AWS.The company needs to migrate to a more resilient managed DNS service and wants the service to run on AWS.What should a solutions architect do to rapidly migrate the DNS hosting service?Read More →
A large company is using an Amazon RDS for Oracle Multi-AZ DB instance with a Java application.As a part of its disaster recovery annual testing, the company would like to simulate an Availability Zone failure and record how the application reacts during the DB instance failover activity.The company does not want to make any code changes for this activity.What should the company do to achieve this in the shortest amount of time?Read More →
A company asks a SysOps administrator to provision an additional environment for an application in four additional AWS Regions.The application is running on more than 100 Amazon C2 instances in the us-east-1 Region, using fully configured Amazon Machine Images (AMIs).The company has an AWS CloudFormation template to deploy resources in us-east-1.What should the SysOps administrator do to provision the application in the MOST operationally efficient manner?Read More →
You are the new IT architect in a company that operates a mobile sleep tracking application.When activated at night, the mobile app is sending collected data points of 1 kilobyte every 5 minutes to your backend.The backend takes care of authenticating the user and writing the data points into an Amazon DynamoDB table.Every morning, you scan the table to extract and aggregate last night’s data on a per user basis, and store the results in Amazon S3.Users are notified viaAmazon SNS mobile push notifications that new data is available, which is parsed and visualized by the mobile app.Currently you have around 100k users who are mostly based out of North America.You have been tasked to optimize the architecture of the backend system to lower cost.What would you recommend? (Choose two.)Read More →
During a manual review of system logs from an Amazon Linux EC2 instance, a Security Engineer noticed that there are sudo commands that were never properly alerted or reported on the Amazon CloudWatch Logs agent.Why were there no alerts on the sudo commands?Read More →
Is it possible to protect the connections between your application servers and your MySQL instances using SSL encryption?Read More →
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