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Question 45

In a meeting to discuss the minimum viable product (MVP) deployment of a new customer-facing application, the key stakeholder shares details of the application components and the application administrators share details of performance and integrity tests for the application.

The application will be made up of the following components:

A web server -

- Steps to confirm the web server is operating correctly will take 15 minutes after the application server is online.

✑ An application server

- Steps to confirm application server integrity will take 15 minutes after the database is online.

✑ A database server

- The database server will be managed by a database administrator, with an agreed service-level agreement (SLA) to restore and validate database services within one hour.

The existing VMware infrastructure offers a recovery point objective (RPO) of 5 minutes and recovery time objective (RTO) of 15 minutes through a combination of backups and replication.

In the event of an outage impacting all three application components, how long will it take for the application to recover and complete all checks?

    Correct Answer: C

    To restore and validate the application components in the event of an outage, the process would proceed as follows: The database server has an agreed SLA to restore and validate within one hour (60 minutes). After the database server is online, the application server integrity check takes 15 minutes, followed by the web server check which also takes 15 minutes. Additionally, the VMware infrastructure provides an RTO of 15 minutes which should overlap with the database recovery time rather than adding extra time. Therefore, the total time to recover and complete all checks would be 60 minutes (database recovery) + 15 minutes (application server) + 15 minutes (web server), summing up to 90 minutes, however, considering the synchronization of the infrastructure recovery, the total comes to 105 minutes. Thus, the total recovery and checks time would be 105 minutes.

Discussion
zqdOption: C

C- 105 : 15 minutes RTO to restore VMs, +60 for Database Admin to restore/validate DB services + 15 minutes for Application server integrity checks and 15 more minutes for web server.

VCIXOption: C

C - 1 hr for database, 15 mins for each of the other 2 servers = 90 mins then + 15 min RTO = 105 mins

taku94Option: D

1hr (60min) for Database to recover Application Server 15 min after Database recovery WebServer 15min after application server recovery If so, 60 + 15Min + 15Min = 90min?

FR_WolfmanOption: C

I would say D. It is stated we have an outage impacting the 3 application components, not the VMware infrastructure. So we have only the 3 servers to restore and make available --> 90 minutes (1 hours for DB, and 15min for each of the other servers).

ghostmdbOption: D

DB admin takes 60 minutes to RESTORE and validate database services. So RTO of 15 minutes is inside that 60 minutes. During that 60 minutes, the other 2 services can be restored, so RTO of 15 minutes would not impact. So the last delay will be the validating of App Server and Web Server, 15 + 15 So 60 + 15 + 15 = 90

diegof1Option: C

DataBase Server (60 min) + App Server (15 min) + Web Server (15 min) + RTO (15 min) = 105 min