Exam 350-901 topic 1 question 1 discussion

IMO, for minimum downtime will be D Active/Active?, so it can have an HA already working..

the correct answer is D https://www.ibm.com/garage/method/practices/manage/hadr-on-premises-app/

Explanation: RTO (Recovery Time Objective) refers to how quickly the application should be back online after an outage. Active/active configurations typically provide lower RTO, as both data centers are operational simultaneously, meaning there is no downtime during failover. RPO (Recovery Point Objective) refers to how much data can be lost in case of a failure. In an active/active configuration, data synchronization between the two data centers must be timely (and near real-time) to ensure no data loss and maintain a seamless request flow.

Active/Active ALWAYS has a lower RTO than active/passive.

they have mentioned it is ok to have minimum downtime.. considering that A/A setup is complex to setup and create more ops issues.. correct ans would be A

For me only D makes sense

This approach provides a lower Recovery Time Objective (RTO) and Recovery Point Objective (RPO) as the passive instance is ready to take over the workload at any time. However, to ensure seamless request flow, data synchronization between the two data centers must be timely. Active/active architecture involves having multiple instances of the application running simultaneously in different data centers. This approach provides a lower RTO and RPO but requires more complex implementation and data synchronization mechanisms.

The best design approach for high-availability applications to minimize downtime would be option A - Active/passive results in lower RTO and RPO. For RPO, data synchronization between the two data centers must be timely to allow seamless request flow. Active/passive architecture involves having a primary (active) and secondary (passive) instance of the application running in two separate data centers. The secondary instance is not in use but is kept up-to-date with data synchronization between the two data centers. In case of a failure or maintenance activity, the passive instance can be activated to take over the workload without any loss of data.

Option A is the best choice for minimizing downtime while ensuring data synchronization between data centers for seamless request flow.

D is correct since the question is mentioning the lower RTO using 'minimum downtime' so we can translate that way: HA = Active/Active RPO = synchronous data RTO = minimum downtime

D is the correct one, it is clearly mentioned here: https://www.ibm.com/garage/method/practices/manage/hadr-on-premises-app/

D is the correct one, it is clearly mentioned here: https://www.ibm.com/garage/method/practices/manage/hadr-on-premises-app/

"Active/passive clustering is a solution approach to minimize system downtime. Two active clusters in different regions provide a high SLA level, but don’t support the use of synchronous replication for multiple cases."

The correct answer is D!

I would also say A is correct, since the requirement is HA. Active/Active would somehow be fault tolerant which is not required. Read the questions carefully :)

Answer D, becouse active/active is minumun RTO.

Correct answer should be D since Active & Active is the best deployment method.