AWS Certified Solutions Architect – Professional
Practice Test Exam Questions with Answers
and Rationale
1. A company needs to design a highly available architecture
across multiple AWS Regions. Which service should be used to
route traffic to the closest healthy endpoint?
A) Application Load Balancer
B) Network Load Balancer
C) Amazon Route 53 with latency-based routing
D) AWS Global Accelerator
Answer: C
Rationale: Route 53 latency-based routing directs users to the
region with the lowest latency. ALB and NLB operate within a
region. Global Accelerator improves performance but latency
routing is the specific feature for closest endpoint.
2. Which AWS service provides a fully managed NoSQL
database with single-digit millisecond latency at any scale?
A) Amazon RDS
B) Amazon DynamoDB
C) Amazon Redshift
,D) Amazon Aurora
Answer: B
Rationale: DynamoDB is a fully managed NoSQL database with
single-digit millisecond latency. RDS and Aurora are relational.
Redshift is a data warehouse.
3. A solutions architect needs to decouple a web application
from a backend processing tier. Which service should be used?
A) Amazon SQS
B) Amazon SNS
C) AWS Lambda
D) Amazon Kinesis
Answer: A
Rationale: SQS decouples application components through
message queues. SNS is for pub/sub notifications. Lambda is
compute. Kinesis is for streaming data.
4. Which AWS service is used to distribute content globally with
low latency?
A) Amazon CloudFront
B) AWS Direct Connect
C) Amazon Route 53
,D) Elastic Load Balancing
Answer: A
Rationale: CloudFront is a content delivery network that
distributes content globally. Direct Connect is a dedicated
network connection. Route 53 is DNS. ELB distributes traffic
within a region.
5. A company wants to migrate a large database to AWS with
minimal downtime. Which service should be used?
A) AWS Database Migration Service
B) AWS Snowball
C) AWS DataSync
D) AWS Storage Gateway
Answer: A
Rationale: DMS migrates databases with minimal downtime.
Snowball is for physical data transfer. DataSync is for file
transfers. Storage Gateway is for hybrid storage.
6. Which AWS service provides a virtual private network
connection between on-premises and AWS?
A) AWS Site-to-Site VPN
B) AWS Direct Connect
, C) Amazon VPC Peering
D) AWS Transit Gateway
Answer: A
Rationale: Site-to-Site VPN provides an encrypted connection
over the internet. Direct Connect is a dedicated private
connection. VPC peering connects VPCs. Transit Gateway
connects multiple networks.
7. Which AWS service is used to centrally manage multiple AWS
accounts?
A) AWS Organizations
B) AWS Config
C) AWS CloudTrail
D) AWS IAM
Answer: A
Rationale: AWS Organizations centrally manages multiple
accounts. Config tracks resource configurations. CloudTrail logs
API activity. IAM manages users and permissions.
8. A solutions architect needs to store objects with infrequent
access but rapid retrieval. Which S3 storage class is most cost-
effective?
Practice Test Exam Questions with Answers
and Rationale
1. A company needs to design a highly available architecture
across multiple AWS Regions. Which service should be used to
route traffic to the closest healthy endpoint?
A) Application Load Balancer
B) Network Load Balancer
C) Amazon Route 53 with latency-based routing
D) AWS Global Accelerator
Answer: C
Rationale: Route 53 latency-based routing directs users to the
region with the lowest latency. ALB and NLB operate within a
region. Global Accelerator improves performance but latency
routing is the specific feature for closest endpoint.
2. Which AWS service provides a fully managed NoSQL
database with single-digit millisecond latency at any scale?
A) Amazon RDS
B) Amazon DynamoDB
C) Amazon Redshift
,D) Amazon Aurora
Answer: B
Rationale: DynamoDB is a fully managed NoSQL database with
single-digit millisecond latency. RDS and Aurora are relational.
Redshift is a data warehouse.
3. A solutions architect needs to decouple a web application
from a backend processing tier. Which service should be used?
A) Amazon SQS
B) Amazon SNS
C) AWS Lambda
D) Amazon Kinesis
Answer: A
Rationale: SQS decouples application components through
message queues. SNS is for pub/sub notifications. Lambda is
compute. Kinesis is for streaming data.
4. Which AWS service is used to distribute content globally with
low latency?
A) Amazon CloudFront
B) AWS Direct Connect
C) Amazon Route 53
,D) Elastic Load Balancing
Answer: A
Rationale: CloudFront is a content delivery network that
distributes content globally. Direct Connect is a dedicated
network connection. Route 53 is DNS. ELB distributes traffic
within a region.
5. A company wants to migrate a large database to AWS with
minimal downtime. Which service should be used?
A) AWS Database Migration Service
B) AWS Snowball
C) AWS DataSync
D) AWS Storage Gateway
Answer: A
Rationale: DMS migrates databases with minimal downtime.
Snowball is for physical data transfer. DataSync is for file
transfers. Storage Gateway is for hybrid storage.
6. Which AWS service provides a virtual private network
connection between on-premises and AWS?
A) AWS Site-to-Site VPN
B) AWS Direct Connect
, C) Amazon VPC Peering
D) AWS Transit Gateway
Answer: A
Rationale: Site-to-Site VPN provides an encrypted connection
over the internet. Direct Connect is a dedicated private
connection. VPC peering connects VPCs. Transit Gateway
connects multiple networks.
7. Which AWS service is used to centrally manage multiple AWS
accounts?
A) AWS Organizations
B) AWS Config
C) AWS CloudTrail
D) AWS IAM
Answer: A
Rationale: AWS Organizations centrally manages multiple
accounts. Config tracks resource configurations. CloudTrail logs
API activity. IAM manages users and permissions.
8. A solutions architect needs to store objects with infrequent
access but rapid retrieval. Which S3 storage class is most cost-
effective?
