SAA-C01 試験問題を無料オンラインアクセス

A client has set up an Auto Scaling group associated with a load balancer. The client has noticed that instances launched by the Auto Scaling group are reported unhealthy as the result of an Elastic Load Balancing (ELB) health check, but these unhealthy instances are not being terminated.
What can a Solutions Architect do to ensure that the instances marked unhealthy will be terminated and replaced?

• A.Change the health check set on the ELB load balancer to use TCP rather than HTTP checks.
• B.Change the thresholds set on the Auto Scaling group health check.
• C.Change the health check type to ELB for the Auto Scaling group.
• D.Increase the value for the health check interval set on the ELB load balancer.

A Solutions Architect is building an online shopping application where users will be able to browse items, add items to a cart, and purchase the items. Images of items will be stored in Amazon S3 buckets organized by item category. When an item is no longer available for purchase, the item image will be deleted from the S3 bucket.
Occasionally, during testing, item images deleted from the S3 bucket are still visible to some users.
What is a flaw in this design approach?

• A.Amazon S3 DELETE requests are eventually consistent, which may cause other users to view items that have already been purchased
• B.Defining S3 buckets by item may cause partition distribution errors, which will impact performance.
• C.Amazon S3 DELETE requests apply a lock to the S3 bucket during the operation, causing other users to be blocked
• D.Using Amazon S3 for persistence exposes the application to a single point of failure

A Company wants to design a web application on stateless web servers in an Auto Scaling group.
How can sensitive user data be handled to ensure a stateless design based on best practices.?

• A.Use the ephemeral storage on the instances to store session state and Amazon DynamoDB for user data
• B.Use cookies with the web server to store user data and session state on the client
• C.Use Amazon SQS to make the workloads stateless and track execution history
• D.Use Amazon DynamoDB for user data and cookies on the client to store session state

An application must access data in an Amazon RDS Aurora DB instance.
Which methods will allow this? (Select TWO)

• A.Create a user in the database parameter group
• B.Enable IAM database authentication
• C.Retrieve credentials from AWS KMS.
• D.Create a user in the database.
• E.Enable AWS Security Token Service

A company has enabled IPv6 in Amazon VPC wants to avoid having resources on the internet initiate communication with instances inside the private subnet. However, these instances need to communicate with the internet.
Which VPC component should the company use?

• A.A security group
• B.An internet gateway
• C.A NAT Gateway
• D.An egress-only internet gateway