A company runs a workload in a private subnet that needs to access Amazon S3 to read and write data. The workload runs continuously and generates a high volume of traffic to S3. The company wants to minimize data transfer costs and improve security. What should the company do?

Use a VPC endpoint for S3 in the private subnet.

Use a NAT gateway in a public subnet to route traffic to S3.

Use a NAT instance in a public subnet to route traffic to S3.

Use an internet gateway and assign a public IP to the workload instance.

A company runs a web application on EC2 instances behind an Application Load Balancer. The application has a predictable baseline load with occasional spikes. The company wants to minimize costs while ensuring the application can handle the spikes. What should the company do?

Use only On-Demand Instances in the target group.

Use a mix of On-Demand and Spot Instances in the target group.

Use only Spot Instances in the target group.

Use Reserved Instances for the baseline load and On-Demand Instances for spikes.

Which of the following is a key principle for designing a cost-effective network architecture in AWS?

Minimize data transfer by keeping traffic within a single AWS Region and using private IP addresses where possible.

Use a separate VPC for each application tier to improve security and isolation.

Maximize the number of NAT gateways to ensure high availability for outbound internet traffic.

Always use the largest instance types to ensure the network can handle peak traffic.

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Domain 4Objective 4

Task 4.4: Design Cost-Optimized Network Architectures SAA-C03 Practice Questions (Page 6)

Part of the Design Cost-Optimized Architectures domain, which makes up ~31% of our current practice bank. AWS does not publish an official question count, but from its 130-minute exam (~50–85 total, ~16–26 in this domain), expect 4–7 from this objective — we provide 29 practice questions to prepare you well beyond it. (estimate)

29questions here

6free pages

10concepts

Questions 26–29

26application · medium
A company runs a workload in a private subnet that needs to access Amazon S3 to read and write data. The workload runs continuously and generates a high volume of traffic to S3. The company wants to minimize data transfer costs and improve security. What should the company do?
Select an answer first
27foundation · easy
Which AWS service can be used to monitor network metrics and set alarms to detect unusual traffic patterns that may indicate cost inefficiencies?
Select an answer first
28application · medium
A company runs a web application on EC2 instances behind an Application Load Balancer. The application has a predictable baseline load with occasional spikes. The company wants to minimize costs while ensuring the application can handle the spikes. What should the company do?
Select an answer first
29foundation · easy
Which of the following is a key principle for designing a cost-effective network architecture in AWS?
Select an answer first

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Task 4.4: Design Cost-Optimized Network Architectures SAA-C03 Practice Questions (Page 6)

Questions 26–29

A company runs a workload in a private subnet that needs to access Amazon S3 to read and write data. The workload runs continuously and generates a high volume of traffic to S3. The company wants to minimize data transfer costs and improve security. What should the company do?

Which AWS service can be used to monitor network metrics and set alarms to detect unusual traffic patterns that may indicate cost inefficiencies?

A company runs a web application on EC2 instances behind an Application Load Balancer. The application has a predictable baseline load with occasional spikes. The company wants to minimize costs while ensuring the application can handle the spikes. What should the company do?

Which of the following is a key principle for designing a cost-effective network architecture in AWS?

Keep studying — Design Cost-Optimized Architectures