A developer has created an application based on customer requirements. The customer needs to run the application with the minimum downtime.
Which design approach regarding high-availability applications, Recovery Time Objective, and Recovery Point Objective must be taken?
The best design approach for achieving minimum downtime in high-availability applications is the active/active architecture. An active/active setup involves having multiple instances of the application running simultaneously in different data centers. This approach results in lower Recovery Time Objective (RTO) and Recovery Point Objective (RPO) as all instances are actively processing requests. To ensure seamless request flow and to maintain data integrity, data synchronization between the data centers must be timely.
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/
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
Not sure about D. Answer A; Active/Passive with synchronisation means the failover is fast in case of failure of the active DC. And this is the requirement.
Yes. Highly likely what correct is A. I used following https://www.ibm.com/cloud/architecture/articles/hadr-containers/hadr-containers-3-two-clusters-active-active-passive/ So both answer is very similar. Both requires - "For RPO, data synchronization between the two data centers must be timely to allow seamless request flow" Active/passive clustering is a solution approach to minimize system downtime. Passive means that cluster doesn’t process the client’s requests, but contains the configuration, application, and data. So it looks as A/A and A/P have same RTO, but one differencies - A/P does not proccess client request. A/A can add complexity to configuration (database loadbalancer, lock mechanism for data integrity and so on) So if no another requriments A is correct.
Option A is the best choice for minimizing downtime while ensuring data synchronization between data centers for seamless request flow.
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!
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.
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.
Answer is ‘D’