Architecting on AWS Certification Architecting On AWS Certification 4

Question 1

Which Route 53 routing policy directs traffic to the endpoint with the lowest network latency for the user?

Accepted Answer

Latency-based routing

Answer

Latency-based routing directs users to the AWS region that provides the lowest network latency based on actual measurements.

Question 2

A solutions architect must ensure an S3 bucket policy prevents data from being publicly exposed even if a bucket ACL is misconfigured. Which feature addresses this?

Accepted Answer

S3 Block Public Access

Answer

S3 Block Public Access settings override bucket policies and ACLs to ensure buckets and objects are never publicly accessible.

Question 3

Which AWS compute service is MOST appropriate for running a batch processing job that requires 10,000 vCPUs for two hours and then terminates?

Accepted Answer

AWS Batch with managed compute environments

Answer

AWS Batch automatically provisions the optimal quantity and type of compute resources and terminates them when the job completes.

Question 4

An application uses DynamoDB and experiences hot partition issues during peak traffic. What is the BEST solution?

Accepted Answer

Use DynamoDB Accelerator (DAX) as a caching layer

Answer

DAX is an in-memory cache for DynamoDB that absorbs read traffic and reduces hot partition pressure without changing application code.

Question 5

A company wants to enforce that all new EC2 instances must use approved AMIs. Which AWS service enforces this at scale?

Accepted Answer

AWS Config with a managed rule

Answer

AWS Config can evaluate EC2 instances against a rule that checks whether they use only approved AMI IDs and flags non-compliant resources.

Architecting on AWS Certification Practice Test

Architecting on AWS Certification Practice Test

Architecting on AWS Certification Architecting On AWS Certification 4