A company runs a web application on a fleet of EC2 instances in a VPC. The application receives a steady, predictable amount of HTTP traffic and must be highly available. The current setup uses a single Application Load Balancer (ALB) with two instances in different Availability Zones. The company wants to reduce costs without sacrificing availability. What should the company do?

Replace the ALB with a Classic Load Balancer (CLB) to reduce per-hour costs.

Replace the ALB with a Network Load Balancer (NLB) to reduce per-hour costs.

Keep the ALB but reduce the number of instances to one in a single Availability Zone.

Keep the ALB and use two smaller instance types in different Availability Zones.

What is the primary goal of right-sizing network resources?

To use the most expensive network features to guarantee reliability.

To reduce the number of network interfaces to lower costs.

To match network capacity to the actual requirements of the workload.

To maximize network bandwidth for all workloads to ensure performance.

A company serves a large amount of video content to users worldwide. The content is stored in an Amazon S3 bucket. The company wants to reduce data transfer costs and improve download speeds for users. What should the company do?

Enable S3 Transfer Acceleration on the bucket.

Move the content to an EC2 instance in a different region.

Use Amazon CloudFront with the S3 bucket as the origin.

A company wants to identify which EC2 instances are generating the most network traffic to optimize costs. The company has enabled VPC Flow Logs but is unsure how to analyze the data. What should the company do to get the most cost-effective analysis?

Use AWS CloudWatch Logs Insights to query the VPC Flow Logs.

Use Amazon Athena to query the VPC Flow Logs directly in Amazon S3.

Stream the VPC Flow Logs to Amazon Elasticsearch Service for real-time analysis.

Stream the VPC Flow Logs to Amazon Kinesis Data Firehose and then to Amazon Redshift.

Which load balancer type is most cost-effective for handling millions of requests per second with very low latency, using TCP traffic?

Application Load Balancer (ALB)

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Domain 4Objective 4

Task 4.4: Design Cost-Optimized Network Architectures SAA-C03 Practice Questions (Page 2)

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 6–10

6application · medium
A company runs a web application on a fleet of EC2 instances in a VPC. The application receives a steady, predictable amount of HTTP traffic and must be highly available. The current setup uses a single Application Load Balancer (ALB) with two instances in different Availability Zones. The company wants to reduce costs without sacrificing availability. What should the company do?
Select an answer first
7foundation · easy
What is the primary goal of right-sizing network resources?
Select an answer first
8application · medium
A company serves a large amount of video content to users worldwide. The content is stored in an Amazon S3 bucket. The company wants to reduce data transfer costs and improve download speeds for users. What should the company do?
Select an answer first
9application · medium
A company wants to identify which EC2 instances are generating the most network traffic to optimize costs. The company has enabled VPC Flow Logs but is unsure how to analyze the data. What should the company do to get the most cost-effective analysis?
Select an answer first
10foundation · easy
Which load balancer type is most cost-effective for handling millions of requests per second with very low latency, using TCP traffic?
Select an answer first

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