VMware vSphere 8.x Advanced Design (VCAP-DCV Design) — Question 15

An architect is documenting the design for a new multi-site vSphere solution. The customer has informed the architect that the workloads hosted on the solution are managed by application teams, who must perform a number of steps to return the application to service following a failover of the workloads to the secondary site. These steps are defined as the Work Recovery Time (WRT). The customer has provided the architect with the following information about the workloads:
Critical workloads have a WRT of 12 hours
Production workloads have a WRT of 24 hours
Development workloads have a WRT of 24 hours
All workloads have an RPO of 4 hours
Critical workloads have an RTO of 1 hour
Production workloads have an RTO of 12 hours
Development workloads have an RTO of 24 hours
The customer has also confirmed that the Disaster Recovery solution will not begin the recovery of the development workloads until all critical and production workloads have been recovered at the secondary site.
What would the architect document as the maximum tolerable downtime (MTD) for each type of workload in the design?

Answer options

Correct answer: B

Explanation

The maximum tolerable downtime (MTD) for each workload type is determined by adding the Work Recovery Time (WRT) and Recovery Time Objective (RTO) for the critical and production workloads since development workloads can only be recovered after these two. Option B correctly calculates the MTD as 13 hours for critical workloads (12 hours WRT + 1 hour RTO), 36 hours for production workloads (24 hours WRT + 12 hours RTO), and 60 hours for development workloads (24 hours WRT + 36 hours waiting for recovery of critical and production). The other options do not correctly account for the combined downtime requirements.