Domain 2.2: Highly Available Architectures

A company runs a critical database on Amazon RDS for PostgreSQL. The company requires high availability and automatic failover in the event of an Availability Zone outage. Which feature should be enabled?

A company has a primary web application hosted in the us-east-1 Region and a disaster recovery (DR) site in the us-west-2 Region. The company wants to automatically route user traffic to the DR site if the primary site goes down. Which TWO Amazon Route 53 features are required to implement this? (Select TWO.)

A company stores critical documents in an Amazon S3 bucket. To meet disaster recovery requirements, the documents must be automatically copied to a different AWS Region. What is the MOST operationally efficient way to achieve this?

A global application requires a relational database that can span multiple AWS Regions. The database must provide sub-second data access to users worldwide and support disaster recovery with an RPO of less than 1 second and an RTO of less than 1 minute. Which database solution meets these requirements?

A company is implementing a disaster recovery strategy. They want to keep a scaled-down version of their core infrastructure running in a secondary region. The database must be continuously replicated, but the application servers will only be provisioned when a disaster is declared. Which DR strategy is this?

A global application requires a multi-region active-active architecture to ensure high availability. The application uses a database to store user profiles. Which TWO AWS services should be used to build this architecture? (Select TWO.)

A company requires a relational database that spans multiple AWS Regions for disaster recovery. The database must have a Recovery Point Objective (RPO) of less than 1 second and a Recovery Time Objective (RTO) of less than 1 minute. Which solution meets these requirements?

A company's primary Amazon RDS database instance experienced a hardware failure. The database was configured with Multi-AZ deployments. What happens next?

A company hosts a static website on Amazon S3. They want to display a custom error page hosted in a different S3 bucket if the primary website goes down. Which Amazon Route 53 routing policy should be used?

A company is implementing a 'Pilot Light' disaster recovery strategy for their on-premises database and web servers. Which TWO actions align with this strategy? (Select TWO.)

A company is designing a highly available architecture for a new relational database. The database must support automatic failover in the event of an Availability Zone outage. The application requires a MySQL-compatible database engine. <br/><br/>Which TWO solutions meet these requirements? (Select TWO.)

A company has a multi-tier web application deployed across two AWS Regions: us-east-1 (primary) and us-west-2 (disaster recovery). The data is asynchronously replicated to the DR region. In the event of a primary region failure, the company wants to automatically route all user traffic to the DR region. <br/><br/>Which Amazon Route 53 routing policy should be used?

A company has a critical database running on Amazon EC2 instances with Amazon EBS volumes. The company needs to implement a disaster recovery strategy that ensures a Recovery Point Objective (RPO) of 5 minutes and a Recovery Time Objective (RTO) of less than 1 hour in a different AWS Region. <br/><br/>Which solution meets these requirements with the LEAST operational overhead?

A company runs a critical database on Amazon RDS for MySQL. They need to ensure the database remains available even if an entire Availability Zone goes offline. Which feature should they enable?

A global application is deployed in the us-east-1 and eu-west-1 regions. Users should be routed to the region that provides the lowest network delay. If a region goes offline, all traffic must be routed to the remaining region. How should Route 53 be configured?

A company is designing a disaster recovery (DR) strategy for their critical application. They require a Recovery Time Objective (RTO) of less than 15 minutes. They want to minimize costs but are willing to pay for necessary resources. Which TWO DR strategies would meet the RTO requirement? (Select TWO.)

A global financial application requires a relational database. The database must span multiple AWS Regions to provide local read performance for users worldwide. In the event of a regional outage, the database must fail over to another region with an RPO of less than 1 second and an RTO of less than 1 minute. Which solution meets these requirements?

An application is hosted on an on-premises server and an EC2 instance. A solutions architect needs to configure DNS failover so that traffic is routed to the EC2 instance only if the on-premises server becomes unavailable. Which Route 53 routing policy should be used?

A company is running a critical database on Amazon RDS for MySQL. The company requires high availability and automatic failover in the event of a hardware failure or Availability Zone outage.<br/><br/>Which feature should be enabled?

A company has a primary web application hosted in the us-east-1 region and a disaster recovery site in the us-west-2 region. The company wants to route all traffic to us-east-1 normally, but automatically route traffic to us-west-2 if the primary site becomes unresponsive.<br/><br/>Which Amazon Route 53 routing policy should be used?

A media company stores critical video assets in an Amazon S3 bucket in the eu-west-1 region. To protect against regional disasters, the company wants to automatically copy all new objects to an S3 bucket in the us-east-1 region.<br/><br/>Which TWO actions must be taken to configure this? (Select TWO.)

A global enterprise requires a relational database that spans multiple AWS Regions. The database must provide sub-second data replication and allow local reads in each region to minimize latency for global users. In the event of a regional outage, the database must recover in less than 1 minute.<br/><br/>Which AWS service meets these requirements?

A company is building a serverless application using Amazon DynamoDB. The application will be deployed in three AWS Regions (us-east-1, eu-west-1, and ap-northeast-1) to serve a global user base. Users must be able to read and write data to their local region with single-digit millisecond latency.<br/><br/>Which TWO statements about the required DynamoDB configuration are correct? (Select TWO.)

A company runs a critical database on Amazon RDS for PostgreSQL. The database must remain available even if an entire AWS Availability Zone goes offline. What is the MOST cost-effective way to achieve this?

A global application is deployed in two AWS Regions: us-east-1 and eu-west-1. The company wants to route users to the region that provides the lowest network latency. Which Amazon Route 53 routing policy should be used?

A company is designing a disaster recovery (DR) strategy for their AWS environment. They have a strict Recovery Time Objective (RTO) of 5 minutes and a Recovery Point Objective (RPO) of 1 minute. Which TWO DR strategies would meet these requirements? (Select TWO.)

A web application is deployed across multiple Availability Zones behind an Application Load Balancer (ALB). The EC2 instances are in an Auto Scaling group. During a load test, the architect notices that instances in AZ-A are receiving significantly more traffic than instances in AZ-B, causing CPU overload in AZ-A. How can this be resolved?

A company uses Amazon S3 to store critical business documents. They want to protect against accidental deletion or overwriting of these documents. They also need to ensure that if an entire AWS Region goes down, the documents are still accessible. Which combination of S3 features should they use?