An ERP application is deployed across multiple AZs in a single region. In the event of failure, the Recovery Time Objective (RTO) must be less than 3 hours, and the Recovery Point Objective (RPO) must be 15 minutes the customer realizes that data corruption occurred roughly 1.5 hours ago.
What DR strategy could be used to achieve this RTO and RPO in the event of this kind of failure?

• A.Take hourly DB backups to 53, with transaction logs stored in 53 every 5 minutes.
• B.Use synchronous database master-slave replication between two availability zones.
• C.Take hourly DB backups to EC2 Instance store volumes with transaction logs stored In 53 every 5 minutes.
• D.Take 15 minute DB backups stored In Glacier with transaction logs stored in 53 every 5 minutes.

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You are in the process of creating a Route 53 DNS failover to direct traffic to two EC2 zones. Obviously, if one fails, you would like Route 53 to direct traffic to the other region. Each region has an ELB with some instances being distributed. What is the best way for you to configure the Route 53 health check?

• A.Route 53 doesn't support ELB with an internal health check.You need to create your own Route 53 health check of the ELB
• B.Route 53 natively supports ELB with an internal health check. Turn "Evaluate target health" off and
  "Associate with Health Check" on and R53 will use the ELB's internal health check.
• C.Route 53 doesn't support ELB with an internal health check. You need to associate your resource record set for the ELB with your own health check
• D.Route 53 natively supports ELB with an internal health check. Turn "Evaluate target health" on and
  "Associate with Health Check" off and R53 will use the ELB's internal health check.

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An application calls a service run by a vendor. The vendor charges based on the number of calls. The finance department needs to know the number of calls that are made to the service to validate the billing statements.
How can a solutions architect design a system to durably store the number of calls without requiring changes to the application?

• A.Call the service through an internet gateway.
• B.Decouple the application from the service with an Amazon Simple Queue Service (Amazon SQS) queue.
• C.Publish a custom Amazon CloudWatch metric that counts calls to the service.
• D.Call the service through a VPC peering connection.

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Which of the following statements is correct about AWS Direct Connect?

• A.Connections to AWS Direct Connect require double clad fiber for 1 gigabit Ethernet with Auto Negotiation enabled for the port.
• B.An AWS Direct Connect location provides access to Amazon Web Services in the region it is associated with.
• C.AWS Direct Connect links your internal network to an AWS Direct Connect location over a standard 50 gigabit Ethernet cable.
• D.To use AWS Direct Connect, your network must be collocated with a new AWS Direct Connect location.

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You must increase storage size in increments of at least __________ %

• A.30
• B.20
• C.10
• D.40

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