A network engineer is troubleshooting a performance issue where an application is experiencing intermittent high latency. The engineer has enabled VPC Flow Logs and is analyzing the logs. The engineer notices that there is a high volume of traffic to a particular instance, but the instance's CPU utilization is low. Which conclusion can be drawn from this data?

The instance may be experiencing network saturation, and the engineer should check the instance's network throughput metrics.

The instance is receiving more traffic than it can handle, and the engineer should add more vCPUs.

The instance is not the bottleneck, and the engineer should focus on the application layer.

The instance is healthy, and the latency issue is elsewhere in the network.

A company is designing a network architecture for a web application that serves users globally. The application is deployed on EC2 instances in a single region. The company wants to reduce latency for users in other regions and also reduce data transfer costs. Which solution should the company implement?

Enable S3 Transfer Acceleration on the application's static assets.

Use AWS Global Accelerator to route traffic to the application.

Use Amazon CloudFront as a content delivery network (CDN) in front of the application.

Deploy additional EC2 instances in multiple regions and use Route 53 latency-based routing.

A company has a workload that transfers large amounts of data between EC2 instances in the same VPC but in different Availability Zones. The company is concerned about data transfer costs. Which action would reduce these costs?

Move the instances to the same Availability Zone.

Enable VPC Flow Logs to monitor the data transfer.

Use a VPC endpoint for the data transfer.

Use a NAT gateway for the data transfer.

A network engineer is investigating a connectivity issue where some users cannot reach an application. The application is behind an Application Load Balancer with health checks configured. The engineer wants to determine if the load balancer is marking instances as unhealthy. Which AWS tool should be used?

Use AWS CloudTrail to see if the load balancer is making API calls.

Use VPC Flow Logs to see if traffic is reaching the instances.

Use AWS Trusted Advisor to check the load balancer configuration.

Check the CloudWatch metrics for the load balancer, specifically the HealthyHostCount and UnhealthyHostCount metrics.

AWSCertified Advanced Networking - Specialty

Domain 3Objective 3

Task 3.3: Optimize AWS Networks for Performance, Reliability, and Cost-Effectiveness ANS-C01 Practice Questions (Page 3)

Part of the Content Domain 3: Network Management and Operation domain, which accounts for 20% of the ANS-C01 exam. AWS does not publish an official question count, but from its 170-minute exam (~70–115 total, ~14–23 in this domain), expect 5–8 from this objective — we provide 24 practice questions to prepare you well beyond it. (estimate)

24questions here

5free pages

6concepts

20%of the exam

Questions 11–15

11expert · hard
A network engineer is troubleshooting a performance issue where an application is experiencing intermittent high latency. The engineer has enabled VPC Flow Logs and is analyzing the logs. The engineer notices that there is a high volume of traffic to a particular instance, but the instance's CPU utilization is low. Which conclusion can be drawn from this data?
Select an answer first
12application · medium
A company is designing a network architecture for a web application that serves users globally. The application is deployed on EC2 instances in a single region. The company wants to reduce latency for users in other regions and also reduce data transfer costs. Which solution should the company implement?
Select an answer first
13application · medium
A company has a workload that transfers large amounts of data between EC2 instances in the same VPC but in different Availability Zones. The company is concerned about data transfer costs. Which action would reduce these costs?
Select an answer first
14application · medium
A network engineer is investigating a connectivity issue where some users cannot reach an application. The application is behind an Application Load Balancer with health checks configured. The engineer wants to determine if the load balancer is marking instances as unhealthy. Which AWS tool should be used?
Select an answer first
15foundation · easy
Which AWS service can be used to reduce data transfer costs by keeping traffic between a VPC and AWS services private, avoiding internet data transfer charges?
Select an answer first

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Task 3.3: Optimize AWS Networks for Performance, Reliability, and Cost-Effectiveness ANS-C01 Practice Questions (Page 3)

Questions 11–15

A company has a workload that transfers large amounts of data between EC2 instances in the same VPC but in different Availability Zones. The company is concerned about data transfer costs. Which action would reduce these costs?

Which AWS service can be used to reduce data transfer costs by keeping traffic between a VPC and AWS services private, avoiding internet data transfer charges?

Keep studying — Content Domain 3: Network Management and Operation