Architecting on AWS Certification Architecting on AWS Certification High Availability & Fault Tolerance

Question 1

Which AWS service enables you to distribute incoming application traffic across multiple targets, such as EC2 instances, in multiple Availability Zones?

Accepted Answer

Elastic Load Balancing

Answer

Amazon CloudFront

Answer

Amazon Route 53

Answer

AWS Global Accelerator

Question 2

What is the minimum number of Availability Zones recommended when designing a highly available architecture on AWS?

Accepted Answer

2

Answer

1

Answer

3

Answer

4

Question 3

Which Amazon RDS feature automatically creates a standby replica in a different Availability Zone and promotes it if the primary fails?

Accepted Answer

Multi-AZ deployment

Answer

Read Replicas

Answer

RDS Proxy

Answer

Aurora Global Database

Question 4

An architect wants an S3-based static website to withstand the failure of an entire AWS Region. Which feature should be configured?

Accepted Answer

S3 Cross-Region Replication

Answer

S3 Versioning

Answer

S3 Transfer Acceleration

Answer

S3 Lifecycle Policies

Question 5

Which Route 53 routing policy sends traffic to the healthiest endpoint and can automatically failover when a primary endpoint becomes unhealthy?

Accepted Answer

Failover routing

Answer

Weighted routing

Answer

Latency routing

Answer

Geolocation routing

Question 6

What AWS feature allows an Auto Scaling group to replace unhealthy EC2 instances automatically without manual intervention?

Accepted Answer

Health check replacement

Answer

Scheduled scaling

Answer

Predictive scaling

Answer

Target tracking