WGU D319 - AWS SOLUTIONS ARCHITECT EXAM
QUESTIONS AND 100% CORRECT ANSWERS (A+) 2025
An enterprise wants to build an application for selling concert tickets, with a web
layer and an application layer.
Which Amazon service should be used so ticket orders are not lost if the
application layer fails?
A) ECS
B) SNS
C) EMR
D) SQS
D
To comply with its disaster recovery requirements, an enterprise is required to
store copies of all data in a specific Amazon S3 bucket in an additional Region.
How should this requirement be fulfilled?
A) Use the Amazon S3 Standard storage class, which automatically replicates data
to three Regions
B) Use the Amazon S3-Infrequent Access storage class, which automatically
replicates data to two Regions
C) Enable versioning for the source bucket and configure Cross-Region
Replication
D) Disable versioning for the source bucket and configure Cross-Region
Replication
C
An application is deployed in the us-west-1 and eu-west-1 Regions, and the users
should be sent to the Region with the fastest response for them, regardless of their
location. The solution must minimize administrative effort.
Which routing policy should be used?
,A) Weighted
B) Latency
C) Failover
D) Geolocation
B
A notification is sent to an Amazon SQS queue when an object is uploaded to an
Amazon S3 bucket. An Amazon ECS cluster processes messages from the queue.
The required queue size fluctuates based on the number of incoming messages and
the processing speed. The company needs to design a scaling strategy for auto
scaling that will minimize the queue size.
Which metric should be used for auto scaling to minimize the queue size?
A) Amazon S3 objects
B) Amazon ECS memory
C) Amazon SQS messages
D) Amazon ECS containers
C
A company hosts a website from two EC2 instances. Users access the website
through an Elastic Load Balancer (ELB). The company needs to ensure the website
is highly available if one or more of the EC2 instances are unavailable.
Which solution should this company use?
A) Configure CloudWatch to monitor the EC2 instances using VPC flow logs
B) Configure the EC2 instance sizes to the maximum available size
C) Configure the ELB to implement Auto Scaling based on health checks
D) Configure the ELB for cross-zone load balancing
C
A company plans to migrate a legacy application to EC2 with no modifications to
the application. The company hopes to add modern cloud features to immediately
respond to changing needs.
Which cloud feature will achieve this goal?
, A) Scheduled scaling
B) Time sync
C) Elastic IP address
D) Auto scaling
D
A company plans to migrate a legacy application to EC2 with no modifications to
the application. The application has regular seasonal increases in demand, and it
must automatically adapt to these needs.
Which scaling option should be included in the migration?
A) Predictive
B) Dynamic
C) Scheduled
D) Target
C
A company plans to migrate a legacy application to Amazon EC2 with no
modifications to the application. The application constantly changes demands with
no patterns, and it must automatically adapt to these needs.
Which scaling option should be included in the migration?
A) Scheduled
B) Dynamic
C) Predictive
D) Target
B
A company plans to migrate a legacy application to Amazon EC2 with no
modifications to the application. Once the application has completed a trial in the
cloud, the company needs to use machine learning algorithms to adapt the
application to changing demands.
Which scaling option should be used?
QUESTIONS AND 100% CORRECT ANSWERS (A+) 2025
An enterprise wants to build an application for selling concert tickets, with a web
layer and an application layer.
Which Amazon service should be used so ticket orders are not lost if the
application layer fails?
A) ECS
B) SNS
C) EMR
D) SQS
D
To comply with its disaster recovery requirements, an enterprise is required to
store copies of all data in a specific Amazon S3 bucket in an additional Region.
How should this requirement be fulfilled?
A) Use the Amazon S3 Standard storage class, which automatically replicates data
to three Regions
B) Use the Amazon S3-Infrequent Access storage class, which automatically
replicates data to two Regions
C) Enable versioning for the source bucket and configure Cross-Region
Replication
D) Disable versioning for the source bucket and configure Cross-Region
Replication
C
An application is deployed in the us-west-1 and eu-west-1 Regions, and the users
should be sent to the Region with the fastest response for them, regardless of their
location. The solution must minimize administrative effort.
Which routing policy should be used?
,A) Weighted
B) Latency
C) Failover
D) Geolocation
B
A notification is sent to an Amazon SQS queue when an object is uploaded to an
Amazon S3 bucket. An Amazon ECS cluster processes messages from the queue.
The required queue size fluctuates based on the number of incoming messages and
the processing speed. The company needs to design a scaling strategy for auto
scaling that will minimize the queue size.
Which metric should be used for auto scaling to minimize the queue size?
A) Amazon S3 objects
B) Amazon ECS memory
C) Amazon SQS messages
D) Amazon ECS containers
C
A company hosts a website from two EC2 instances. Users access the website
through an Elastic Load Balancer (ELB). The company needs to ensure the website
is highly available if one or more of the EC2 instances are unavailable.
Which solution should this company use?
A) Configure CloudWatch to monitor the EC2 instances using VPC flow logs
B) Configure the EC2 instance sizes to the maximum available size
C) Configure the ELB to implement Auto Scaling based on health checks
D) Configure the ELB for cross-zone load balancing
C
A company plans to migrate a legacy application to EC2 with no modifications to
the application. The company hopes to add modern cloud features to immediately
respond to changing needs.
Which cloud feature will achieve this goal?
, A) Scheduled scaling
B) Time sync
C) Elastic IP address
D) Auto scaling
D
A company plans to migrate a legacy application to EC2 with no modifications to
the application. The application has regular seasonal increases in demand, and it
must automatically adapt to these needs.
Which scaling option should be included in the migration?
A) Predictive
B) Dynamic
C) Scheduled
D) Target
C
A company plans to migrate a legacy application to Amazon EC2 with no
modifications to the application. The application constantly changes demands with
no patterns, and it must automatically adapt to these needs.
Which scaling option should be included in the migration?
A) Scheduled
B) Dynamic
C) Predictive
D) Target
B
A company plans to migrate a legacy application to Amazon EC2 with no
modifications to the application. Once the application has completed a trial in the
cloud, the company needs to use machine learning algorithms to adapt the
application to changing demands.
Which scaling option should be used?
