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Exam AZ-301 topic 4 question 5 discussion

Actual exam question from Microsoft's AZ-301
Question #: 5
Topic #: 4
[All AZ-301 Questions]

You plan to deploy a payroll system to Azure. The payroll system will use Azure virtual machines that run SUSE Linux Enterprise Server and Windows.
You need to recommend a business continuity solution for the payroll system. The solution must meet the following requirements:
✑ Minimize costs.
✑ Provide business continuity if an Azure region fails.
✑ Provide a recovery time objective (RTO) of 120 minutes.
✑ Provide a recovery point objective (RPO) of five minutes.
What should you include in the recommendation?

  • A. Microsoft System Center Data Protection Manager (DPM)
  • B. Azure Site Recovery
  • C. unmanaged disks that use geo-redundant storage (GRS)
  • D. Azure Backup
Show Suggested Answer Hide Answer
Suggested Answer: C 🗳️
If your storage account has GRS enabled, then your data is durable even in the case of a complete regional outage or a disaster in which the primary region isn't recoverable.
Note: The recovery time objective (RTO) is the targeted duration of time and a service level within which a business process must be restored after a disaster (or disruption) in order to avoid unacceptable consequences associated with a break in business continuity.
Incorrect Answers:
B: Azure Site Recovery would not protect against an Azure region failure.
Azure Site Recovery guarantees a two-hour Recovery Time Objective.
References:
https://docs.microsoft.com/en-us/azure/storage/common/storage-redundancy-grs https://azure.microsoft.com/en-us/support/legal/sla/site-recovery/v1_0/

Comments

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Oz
Highly Voted 5 years, 6 months ago
Azure-to-Azure disaster recovery is fully supported by Site Recovery ref: https://docs.microsoft.com/en-us/azure/site-recovery/azure-to-azure-common-questions Site Recovery has a RTO SLA of 2 hours. RPO can be set to 5 min, meaning protected VM can replicate changes every 5 min and only 5 min of change can be lost. So I think the answer here should be Site Recovery.
upvoted 74 times
AzureGC
5 years, 5 months ago
B is correct, ASR has a 5-min RPO and minimum of 60 RTO and support regions;
upvoted 9 times
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onlyfunmails
5 years, 4 months ago
with unmanaged disks , RTO 2hrs and RPO 5mins may not be guaranteed.
upvoted 3 times
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RNA
4 years, 8 months ago
What about the minumum cost. Isn't it Cost(ASR) > Cost(Unmanaged Disk) ?
upvoted 1 times
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JimmyO
Highly Voted 5 years, 8 months ago
https://azure.microsoft.com/en-in/services/site-recovery/ Site recovery manager does support regions so would think this is a better option than GRS unmanaged
upvoted 19 times
dtvAzh
5 years, 1 month ago
Azure Site recovery is the best option as the GRS has a RPO of less than 15 mins (no guaranteed SLA) which is unsuitable in this case, as the requirement is RPO of 5 mins. https://docs.microsoft.com/en-us/azure/storage/common/storage-redundancy
upvoted 8 times
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sallymaher
Most Recent 4 years, 2 months ago
i tried to create unmanaged disk and while creating the VM the only option i got is premium and LRS not GRS , i tried also to create the storage account first ( blob storage with GRS ) but it didn't shown up when i tried to create the VM after that same region , note :- all from the portal , not sure the answer C is doable via CLI or ARM but i would go for B
upvoted 1 times
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Hi2ALL
4 years, 3 months ago
B is the Correct answer in this question By using Site Recovery, you can replicate and recover VMs between any two regions within the same geographic cluster. Geographic clusters are defined with data latency and sovereignty in mind. https://docs.microsoft.com/en-us/azure/site-recovery/azure-to-azure-common-questions#replication
upvoted 1 times
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glam
4 years, 3 months ago
B. Azure Site Recovery
upvoted 1 times
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hydrillo
4 years, 3 months ago
It is C for sure. A classical scenario for ASR. While with GSR you might archieve the business continuity for the disks you don't for the VMs. You need a server for the VM to run on.
upvoted 1 times
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sanketshah
4 years, 4 months ago
B is correct answer.
upvoted 1 times
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Chartar
4 years, 7 months ago
incorrect answer, you cannot guarantee RPO and RTO with Geo replication, Answer is Site recovery
upvoted 1 times
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daywalkur
4 years, 8 months ago
Minimize costs, so i will go with B. Both will do the job, but they keyword here is minimize costs, ASR > LRS.
upvoted 1 times
ExamW
4 years, 7 months ago
You mean c?
upvoted 1 times
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ananthkamath
4 years, 8 months ago
https://docs.microsoft.com/en-us/azure/site-recovery/site-recovery-overview Azure VM replication: You can set up disaster recovery of Azure VMs from a primary region to a secondary region. Guess the correct answer should be B
upvoted 1 times
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ananthkamath
4 years, 8 months ago
https://docs.microsoft.com/en-us/azure/site-recovery/site-recovery-overview Azure VM replication: You can set up disaster recovery of Azure VMs from a primary region to a secondary region. Guess the correct answer should be C
upvoted 1 times
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Explen
4 years, 8 months ago
Simple to deploy and manage Set up Azure Site Recovery simply by replicating an Azure VM to a different Azure region directly from the Azure portal. As a fully integrated offering, Site Recovery is automatically updated with new Azure features as they’re released. Minimize recovery issues by sequencing the order of multi-tier applications running on multiple virtual machines. Ensure compliance by testing your disaster recovery plan without impacting production workloads or end users. And keep applications available during outages with automatic recovery from on-premises to Azure or Azure to another Azure region. https://azure.microsoft.com/en-us/services/site-recovery/#overview B is the answer
upvoted 2 times
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Rooh
4 years, 8 months ago
Its Azure Site Recovery
upvoted 1 times
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prateek1005
4 years, 8 months ago
Azure Site Recovery is the correct answer
upvoted 2 times
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James0208
4 years, 9 months ago
From this link https://docs.microsoft.com/en-us/azure/storage/common/storage-redundancy-grs We will have C - GRS as the answer.
upvoted 1 times
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ArulLivingston
4 years, 9 months ago
ASR supports region to region recovery.
upvoted 3 times
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RegisK
4 years, 10 months ago
Ans B : https://docs.microsoft.com/en-us/azure/site-recovery/site-recovery-faq Site Recovery contributes to your business continuity and disaster recovery (BCDR) strategy, by orchestrating and automating replication of Azure VMs between regions, on-premises virtual machines and physical servers to Azure, and on-premises machines to a secondary datacenter
upvoted 2 times
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