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DP-201 Exam - Question 141


A company is designing a solution that uses Azure Databricks.

The solution must be resilient to regional Azure datacenter outages.

You need to recommend the redundancy type for the solution.

What should you recommend?

Show Answer
Correct Answer: A

Read-access geo-redundant storage (RA-GRS) replicates your storage data to a secondary region and allows read access to the data in the event of an outage in the primary region. This ensures that the solution is resilient to regional Azure datacenter outages by providing both durability and availability of the data. This redundancy type is ideal as it ensures that the data remains accessible even if the primary region experiences an outage.

Discussion

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mcurko123
Feb 14, 2020

zone is part od a region, not vice-versa, so D can't be the answer

Debjit
Mar 24, 2021

The question says if a data center goes down.. not if a region goes down. A region can host multiple data centers. So if one is down another data center from same region can take its place

Psycho
May 19, 2021

"The solution must be resilient to regional Azure datacenter outages.". I believe that the given ans is correct.

Psycho
May 19, 2021

"The solution must be resilient to regional Azure datacenter outages.". I believe that the given ans is correct.

ERCTS
May 24, 2021

Its does not say if "a" datacenter goes down, like in few previous question. given answer is correct.

AhmedReda
Jun 26, 2020

I think the answer is correct; Answer should be (C) : geo-redundant storage Search for geo-redundant storage in the below link https://docs.microsoft.com/en-us/azure/databricks/scenarios/howto-regional-disaster-recovery

JaBe
Nov 30, 2019

No it's D, zone redundant. The question states regional datacenter outages, not a whole region! Ref. https://docs.microsoft.com/en-us/azure/availability-zones/az-overview. "Availability Zones is a high-availability offering that protects your applications and data from datacenter failures"

2008hsk
Apr 21, 2020

blob storage does not support for ZRS.

M0e
Oct 25, 2020

Now, it does.

M0e
Oct 25, 2020

Now, it does.

Nehuuu
Mar 17, 2020

correct answer - C

Abbas
Dec 7, 2019

Yes D is the right answer as it says datacenter outage in a region. The jumbling of words is causing confusion here.

Leonido
May 2, 2020

On the second though, we need RA-GRS to configure Databricks recovery - you'll have to remount all the data mounts therefore, you'll need your data available, therefore, RA is necessary. Unless you want to remount your data during the disaster recovery.

riteshsinha18
Mar 21, 2021

D is the correct answer. Gave the exam

jimkhan
May 20, 2021

how does giving the exam justify it when one doesnt know which ones are right..unless u got 100% :)

Anonymous
Jun 28, 2021

you cannot know, you cannot get 100%

kumarakash
Feb 24, 2021

The answer is correct, as it mentions "regional Azure datacenter outages". Thus the outages are for all the data center in a region, therefore ZRS can be ruled out. GRS is correct

AlexD332
Mar 15, 2021

D for region-wide outage C for region datacenter down correct: C

AlexD332
Mar 15, 2021

sorry otherwise - C for region-wide outage D for region datacenter down correct: D

hokigir
Apr 29, 2020

I think its zone -> https://docs.microsoft.com/en-us/azure/storage/common/storage-redundancy

Arsa
Aug 21, 2020

Services resiliency All Azure management services are architected to be resilient from region-level failures. In the spectrum of failures, one or more Availability Zone failures within a region have a smaller failure radius compared to an entire region failure. Azure can recover from a zone-level failure of management services within the region or from another Azure region. Azure performs critical maintenance one zone at a time within a region, to prevent any failures impacting customer resources deployed across Availability Zones within a region. seems it should be D - Zone Redundancy

Johnrob
Sep 26, 2020

While regional outage happen databricks cannot replicate to zone so we need to create in another region

M0e
Oct 25, 2020

But the question talks about regional datacenter outage. ZRS should suffice.

brcdbrcd
Dec 5, 2020

"regional Azure datacenter outages" it says regional. so how it would be ZRS? GRS is the answer.

Leonido
May 2, 2020

Solution link from MS: https://docs.microsoft.com/en-us/azure/azure-databricks/howto-regional-disaster-recovery

Mathster
May 28, 2020

They indeed recommend using geo-redundant storage. So it is answer C as suggested.

wyxh
Jun 5, 2020

they reccomend geo-redundand because they are speaking of creating your own regional disaster recovery topology, the question is referring to a regional datacenter outage not a regional outage. a datacenter outage , the datacenter is inside a region, the solution to me is zone redundant (another datacenter in the same region)

wyxh
Jun 5, 2020

they reccomend geo-redundand because they are speaking of creating your own regional disaster recovery topology, the question is referring to a regional datacenter outage not a regional outage. a datacenter outage , the datacenter is inside a region, the solution to me is zone redundant (another datacenter in the same region)

pravinDataSpecialist
Jun 20, 2020

C it is

syu31svc
Dec 8, 2020

https://docs.microsoft.com/en-us/azure/databricks/scenarios/howto-regional-disaster-recovery: "Use geo-redundant storage" Anyone would like to dispute this?

AlexD332
Mar 13, 2021

there is a difference between 1 datacenter and the whole region. Your link is a prove for ZRS

muni53
Sep 22, 2021

datacenter failure, so Zone-redundant storage

massnonn
Nov 16, 2021

Zone-redundant storage (ZRS) replicates your Azure Storage data synchronously across three Azure availability zones in the primary region answer is D https://docs.microsoft.com/en-us/azure/storage/common/storage-redundancy