Exam AZ-120 topic 2 question 3 discussion

AB seems to be correct answers. Availability set cannot be used between regions when you are using paired region.

My pick is A and B , VM in paired region (250Km apart --condition met) and once the DR happens, client requests shud be diverted to secondary site, where Traffic Manager will play pivotal role.

Regarding answered C, are you going to use not Azure managed disks? For SAP we can use managed disks and Azure NetApp Files. For the managed disks, we can't use GRS.

So many answers that include Traffic Manager. Why? How are you going to handle input traffic from on-premises private addresses? If you have endpoints that are inside a private network (for example, an internal version of Azure Load Balancer) or have users making DNS requests from such internal networks, then you can't use Traffic Manager to route this traffic. https://learn.microsoft.com/en-us/azure/traffic-manager/traffic-manager-faqs#what-types-of-traffic-can-be-routed-using-traffic-manager

A&B looks best

A and B. A to have ready-to-use instances for the application, and B to route traffic. SAP recommended is Managed disks which do not support GRS (https://learn.microsoft.com/en-us/azure/virtual-machines/disks-redundancy) and hence, C is not a viable option.

Even it can be B and E. warm standby VM's with Availability zones with in a region that covers the distance of 250 KM's.

A&B looks best

I would go with A & C.

A and E A for DR, E for HA https://azure.microsoft.com/en-us/blog/sap-on-azure-designing-for-availability-and-recoverability/ C is wrong because managed storage has only LRS and ZRS redundancy https://azure.microsoft.com/en-us/pricing/details/managed-disks/ D - does not apply and B - Traffic Manager is for public facing applications, so it does not apply.

I thick A & B is correct

You need for sure Answer B Traffic Maanger is used for "Automatic failover using Azure Traffic Manager". Otherwise, you will not be able to meet the "minimize recovery TIME objective" Answer A meets the ditance obejective of 250 km but without storage replication misses the recovery point objective. For this, youu require geo-reduntant storage. Geo-reduntant means also paired region copy so 250 km are fulfilled. https://docs.microsoft.com/en-us/azure/storage/common/geo-redundant-design?ranMID=24542&ranEAID=a1LgFw09t88&ranSiteID=a1LgFw09t88-_UsIFjWL3YFRW5f6sCgmMg&epi=a1LgFw09t88-_UsIFjWL3YFRW5f6sCgmMg&irgwc=1&OCID=AID2000142_aff_7593_1243925&tduid=%28ir__0iqueirz0gkfqmhckk0sohz3wf2xplxyklmn1yoo00%29%287593%29%281243925%29%28a1LgFw09t88-_UsIFjWL3YFRW5f6sCgmMg%29%28%29&irclickid=_0iqueirz0gkfqmhckk0sohz3wf2xplxyklmn1yoo00 So you should go with B & C

Answer is AB for sure. GRS is for Storage Account/Azure Storage and this has nothing to do with VMs running HANA which are M class VMs or Large Instances. The only storage you can use is NFS. You cannot use Azure Storage or a Storage based clustering for HA. AB is the correct answer.

Answer is A and C. Question is really Tricky warm standby virtual machines in a New AV Set (Not the existing in Prod Region) that uses geo-redundant storage (GRS) - GRS because - Underlaying data is replicated.

Azure never share distance info. No question for HANA here that is not part of question .. to have resilient and HA solution - A is must to have not sure of B or C or E??

Answer should be A & B based on this doc : https://docs.microsoft.com/en-us/azure/best-practices-availability-paired-regions. - " we recommend that you configure business continuity disaster recovery (BCDR) across regional pairs to benefit from isolation and improve availability. " - " Using Azure DNS and Azure Traffic Manager, customers can design a resilient architecture for their applications that will survive the loss of the primary region. "

I believe the correct answer should be A and E. A will cover DR while E will cover the HA part. B. Traffic manager is not applicable for as it is not internet facing, C. Managed disk used in Availability sets is only available as LRS, D. This is not applicable.