Task 3.3: Optimize AWS Networks for Performance, Reliability, and Cost-Effectiveness ANS-C01 Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   When designing a network architecture, what is the primary trade-off when choosing a single Availability Zone instead of multiple Availability Zones?

   • ALower cost but reduced availability
   • BHigher cost but improved availability
   • CLower latency but reduced security
   • DHigher throughput but reduced performance
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   Which AWS service can be used to distribute incoming traffic across multiple targets, such as EC2 instances, in multiple Availability Zones to improve fault tolerance?

   • AAWS Transit Gateway
   • BAWS Direct Connect
   • CElastic Load Balancing (ELB)
   • DAmazon Route 53
   Reveal Solution Discussion Select an answer first
4. 8foundation · easy

   Which AWS service is designed to reduce data transfer costs and improve performance for users by caching content at edge locations?

   • AAmazon S3 Transfer Acceleration
   • BAWS Global Accelerator
   • CAmazon CloudFront
   • DAWS Site-to-Site VPN
   Reveal Solution Discussion Select an answer first
5. 9application · medium

   A company runs a web application on EC2 instances in a single Availability Zone behind an Application Load Balancer. The application must remain available even if an entire Availability Zone fails. The company wants a cost-effective solution that minimizes changes to the application. What should the network engineer do?

   • ACreate a second Application Load Balancer in a different region and use Route 53 failover routing.
   • BDeploy EC2 instances in a second Availability Zone and register them with the same Application Load Balancer.
   • CEnable cross-zone load balancing on the existing Application Load Balancer.
   • DUse an Auto Scaling group with a single instance in the same AZ and a larger instance type.
   Reveal Solution Discussion Select an answer first
6. 10application · medium

   A company runs a critical application on EC2 instances in two Availability Zones. The application uses a static IP address that must remain the same for client connections. The company wants to ensure that if an instance fails, traffic is automatically redirected to a healthy instance in the other AZ. Which solution should be implemented?

   • AUse an Application Load Balancer with a static IP address.
   • BUse a Network Load Balancer with a static IP address and target groups for instances in both AZs.
   • CUse Route 53 with a failover routing policy and health checks.
   • DUse an Elastic IP address and associate it with the primary instance, then use a script to reassociate it to the secondary instance on failure.
   Reveal Solution Discussion Select an answer first