Task 3.3: Optimize AWS Networks for Performance, Reliability, and Cost-Effectiveness ANS-C01 Practice Questions (Page 4)

Questions 16–20

1. 16foundation · easy

   Which AWS service can be used to capture IP traffic information for a VPC, including allowed and denied traffic, for analysis and troubleshooting?

   • AAWS CloudTrail
   • BAmazon Inspector
   • CAWS Trusted Advisor
   • DVPC Flow Logs
   Reveal Solution Discussion Select an answer first
2. 17application · medium

   A network engineer is troubleshooting a performance issue where an application is experiencing high latency. The engineer suspects that a particular EC2 instance is receiving more traffic than others. Which AWS tool should the engineer use to analyze traffic patterns at the network interface level?

   • AEnable detailed monitoring on the instance's CloudWatch metrics.
   • BUse AWS CloudTrail to review API calls made by the instance.
   • CUse AWS Trusted Advisor to check for security group issues.
   • DEnable VPC Flow Logs for the instance's network interface and analyze the logs.
   Reveal Solution Discussion Select an answer first
4. 18foundation · easy

   Which AWS service feature is used to monitor the health of an application endpoint and automatically reroute traffic away from unhealthy resources?

   • AAWS CloudTrail
   • BAmazon Route 53 health checks
   • CVPC Flow Logs
   • DAWS Config
   Reveal Solution Discussion Select an answer first
5. 19expert · hard

   A company runs a multi-tier application with a web tier and a database tier. The web tier is behind an Application Load Balancer in two AZs. The database tier is a single EC2 instance in one AZ. The company wants to improve the reliability of the database tier without increasing costs significantly. Which solution should be implemented?

   • AUse Amazon RDS Multi-AZ deployment for the database.
   • BTake regular snapshots of the database and store them in S3.
   • CDeploy a second database instance in another AZ and use synchronous replication.
   • DUse a larger database instance type to improve performance.
   Reveal Solution Discussion Select an answer first
6. 20expert · hard

   A network engineer is analyzing VPC Flow Logs to identify a bottleneck in a three-tier application. The engineer notices that the web tier instances are sending a large amount of traffic to the application tier instances. The application tier instances are in a different AZ than the web tier. The engineer wants to reduce latency and improve performance. Which action should be taken?

   • AEnable enhanced networking on the web tier instances.
   • BUse a larger instance type for the application tier instances.
   • CUse a Network Load Balancer between the web and application tiers.
   • DMove the application tier instances to the same AZ as the web tier instances.
   Reveal Solution Discussion Select an answer first