Task 2.2: Design Highly Available And/or Fault-Tolerant Architectures SAA-C03 Practice Questions (Page 10)

Questions 46–50

1. 46foundation · easy

   Which AWS service provides distributed tracing to help analyze and debug distributed applications?

   • AAWS CloudTrail
   • BAmazon CloudWatch
   • CAWS X-Ray
   • DAmazon Inspector
   Reveal Solution Discussion Select an answer first
2. 47foundation · easy

   How can you improve the availability of a legacy application that runs on a single EC2 instance without modifying the application?

   • APlace the instance in an Auto Scaling group with a minimum of one instance
   • BUse a larger EBS volume
   • CEnable detailed monitoring
   • DIncrease the instance size
   Reveal Solution Discussion Select an answer first
4. 48foundation · easy

   What is the primary purpose of using Amazon CloudWatch in a resilient architecture?

   • ATo automatically scale resources based on demand
   • BTo collect and track metrics, logs, and set alarms
   • CTo trace requests across distributed services
   • DTo record API activity for auditing
   Reveal Solution Discussion Select an answer first
5. 49foundation · easy

   What is the primary function of a route table in a VPC?

   • ATo encrypt traffic between subnets
   • BTo translate private IP addresses to public IP addresses
   • CTo filter traffic based on source and destination IP addresses
   • DTo determine where network traffic is directed
   Reveal Solution Discussion Select an answer first
6. 50application · medium

   A company runs a web application on Amazon EC2 instances in private subnets across two Availability Zones in the us-east-1 Region. An Application Load Balancer (ALB) in public subnets distributes traffic to the instances. The application must remain available if an entire Availability Zone fails. What should a solutions architect do to meet this requirement?

   • ARegister the EC2 instances in both Availability Zones with the ALB, and ensure the ALB is enabled for multiple Availability Zones.
   • BPlace the EC2 instances in a single Availability Zone and use an Amazon Route 53 failover routing policy with a health check on the ALB.
   • CConfigure the ALB to use a single public subnet in one Availability Zone and add more EC2 instances to that subnet.
   • DCreate a second ALB in the other Availability Zone and use Amazon Route 53 weighted routing to distribute traffic between the two ALBs.
   Reveal Solution Discussion Select an answer first