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Question

Which domain controller should be online to meet the technical requirements for DC4?

Proposed answer
  • A. DC1
  • B. DC2
  • C. DC3
Suggested answer

A. DC1

Comments
Leocan

Highly Voted 1 year, 7 months ago 

Selected Answer: A

The RID Master holds the global RID pool for the domain. The size is limited to 30-bits by default, so the maximum RID size is 2 to the power of 30, or about one billion. The RID Master assigns each Domain Controller a pool of RIDs to use for SID creation. By default, DCs are assigned 500 contiguous RIDs at a time and request a standby pool containing another 500 RIDs when they have used 50% of their original allocation. If a RID master is not online, the DC promotion cannot complete.

upvoted 10 times 

GoforIT21

Highly Voted 1 year, 10 months ago 

None, I would have said? The only answer that remotely makes sense is B, for the PDC emulator role...

upvoted 9 times 

ProfileX

1 year, 10 months ago 

I agree, I searched but didn't find anything saying you can't promote a new DC without the domain naming master being online.

upvoted 2 times 

scribe

1 year, 7 months ago 

same qustion i az-800 ---> pdc emulator is needed!

upvoted 4 times 

scribe

1 year, 7 months ago 

i mean Naminig Master

upvoted 4 times 

BlackCat9588

Most Recent 2 days, 11 hours ago 

Selected Answer: A

Should be A? But why PDC is not needed?

upvoted 1 times 

ahenriquez02

2 months, 1 week ago 

Selected Answer: A RID Domain - Allocates active and standby RID pools to replica domain controllers in the same domain. - Must be online in the following situations: when newly promoted domain controllers must obtain a local RID pool that's required to advertise when existing domain controllers must update their current or standby RID pool allocation.

upvoted 2 times 

janshal

4 months, 2 weeks ago 

RID Master for sure. checked in my LAB we can promote a server to a DC while the Doman naming master is offline

upvoted 1 times 

Leoanetor

8 months ago 

The correct answer is C: Only an active Domain Naming Master can add, remove, and update domains within AD. Ref: https://www.31west.net/blog/what-are-the-roles-of-active-directory/#:~:text=Another%20forest%2Dlevel%20role%20in,assigned%20to%20a%20single%20DC.

upvoted 1 times 

Troy06

8 months, 2 weeks ago 

Selected Answer: B

Schema master : responsible for the schema = NO Domain naming master : DCs contact the FSMO role holder when: Domains are added or removed in the forest. New instances of application directory partitions on DCs are added. For example, a DNS server has been enlisted for the default DNS application directory partitions. = YES RID master : Give SID and RID to other DC = NO PDC emulator : time master + The PDC emulator performs all of the functionality that a Windows NT 4.0 Server-based PDC or earlier PDC performs for Windows NT 4.0-based or earlier clients. = YES Infrastructure master : relation with external domains = NO DC2 holds both roles ==> B https://learn.microsoft.com/en-us/troubleshoot/windows-server/identity/fsmo-roles

upvoted 1 times 

FormaPlom

9 months ago 

Selected Answer: C

In this link, explain that Domain Naming Master is necessary for DCPROMO wizard. Join and unjoin a new domain controller :https://convergenttechonline.com/news/effects-of-losing-an-operations-master-fsmo-role-holder-in-relation-to-an-active-directory-forest-andor-domain/ So, the correct answer is C

upvoted 1 times 

EdHuisman

9 months, 1 week ago 

Selected Answer: A

RID Master

upvoted 4 times 

makonmakon

4 months, 2 weeks ago 

right, RID Master should be online. here is link from Microsoft: https://learn.microsoft.com/en-us/troubleshoot/windows-server/active-directory/fsmo-placement-and-optimization-on-ad-dcs RID Domain - Allocates active and standby RID pools to replica domain controllers in the same domain. - Must be online in the following situations: when newly promoted domain controllers must obtain a local RID pool that's required to advertise; when existing domain controllers must update their current or standby RID pool allocation.

upvoted 1 times 

neusaap

9 months, 2 weeks ago 

I'd say DC1 for the RID role: when newly promoted domain controllers must obtain a local RID pool that's required to advertise. We're only adding a DC, not creating a new domain in the forest so the Domain Naming Master can be offline. Source: https://learn.microsoft.com/en-us/troubleshoot/windows-server/identity/fsmo-placement-and-optimization-on-ad-dcs

upvoted 2 times 

tomasek88

1 year ago 

Selected Answer: C

DC3 --> Naminig Master is correct.

upvoted 1 times 

tomasek88

1 year ago 

Selected Answer: C

DC3 --> Domain naming master FSMO role is responsible for DC PROMOTED OR DEMOTED

upvoted 1 times 

ala76nl

1 year ago 

Follow these general steps before you promote a server to a DC that runs a newer version of Windows Server: Verify the target server meets the system requirements. Verify application compatibility. Review recommendations for moving to a newer version of Windows Server. Verify security settings. Check connectivity to the target server from the computer where you plan to run the installation. Check for availability of the necessary Flexible Single Master Operation (FSMO) roles in Active Directory. This step is required for the following scenarios: To install the first DC that runs the latest Windows Server version in an existing domain and forest, the machine where you run the installation needs connectivity to: The schema master to run adprep /forestprep. The infrastructure master to run adprep /domainprep. https://learn.microsoft.com/en-us/windows-server/identity/ad-ds/deploy/upgrade-domain-controllers So answer A

upvoted 4 times 

raulgar

1 year, 2 months ago 

Selected Answer: A

You need schema master online for the adprep and adprep (domainprep and forestprep for 2022), so i think A

upvoted 5 times 

tomasek88

1 year ago 

You think wrong --> correct is DC3 --> Domain naming master FSMO role

upvoted 1 times 

syu31svc

1 year, 3 months ago 

Selected Answer: A

Tested it Answer is A

upvoted 5 times 

kijken

1 year, 4 months ago 

Pdc can be offline, but schema and naming should be online... I have no idea a or c should both be the answer togetber

upvoted 2 times 

Telekon

1 year, 5 months ago 

Selected Answer: C

Naming master is essential

upvoted 3 times 

Goofer

1 year, 5 months ago 

Domain Naming Master (Forest Role) If the Domain Naming Master role holder is lost, domains won’t be able to be added or removed from the Active Directory forest. DCPROMO is also affected, meaning that servers can neither be promoted nor demoted. Answer: DC3 Info: https://convergenttechonline.com/news/effects-of-losing-an-operations-master-fsmo-role-holder-in-relation-to-an-active-directory-forest-andor-domain

upvoted 3 times 

wyindualizer

1 year, 5 months ago 

https://learn.microsoft.com/en-us/troubleshoot/windows-server/identity/fsmo-placement-and-optimization-on-ad-dcs RID: - Allocates active and standby RID pools to replica domain controllers in the same domain. - Must be online in the following situations: when newly promoted domain controllers must obtain a local RID pool that's required to advertise when existing domain controllers must update their current or standby RID pool allocation.

upvoted 4 times 

Garjam

1 year, 6 months ago 

To add 2022 dc you need to update the schema so schema master must be online. Answer is a

upvoted 3 times 

musmas82473

1 year, 6 months ago 

Congrats you got to the end, good luck on your exam!

upvoted 5 times 

scribe

1 year, 7 months ago 

DC3 naming master - --> same question in az-800

upvoted 3 times 

joehoesofat

1 year, 8 months ago 

Selected Answer: A

OK - Never the obvios answer- the domain naming master names domains - not domain controllers- so - the only one that "may" be needed is the Rid MASTER - so a the 2012 server https://social.technet.microsoft.com/Forums/windows/en-US/55cdc487-c3c4-4090-9c41-38d768fb26e8/which-fsmo-role-is-responsible-for-adding-a-new-domain-controller-in-the-existing-root-domain-or#:~:text=There%20are%20no%20FSMO%20roles%20needed%20or%20required,is%20asking%20about%20adding%20domain%20controllers%2C%20not%20domains.

upvoted 4 times 

GeertVanAssen

1 year, 8 months ago 

Entry number 23 under ,,Promotion and demotion failure codes'' in your source: https://learn.microsoft.com/en-us/windows-server/identity/ad-ds/deploy/troubleshooting-domain-controller-deployment Implies that the server carrying out the DNS role must be online, but we cannot really infer from this assignment that DC3 is hosting that role, just the DNS FSMO

upvoted 2 times 

Lightitup

1 year, 8 months ago 

Selected Answer: A

Nothing super concrete I could find, but similar to Sizz's sources, it does seem RID is a necessary part to DC promotion. This link described it well: https://adamtheautomator.com/fsmo-roles/#DC_PromotionDemotion

upvoted 4 times 

SmartBiking

1 year, 10 months ago 

The answer is correct - "If the Domain Naming Master role holder is lost, domains won't be able to be added or removed from the Active Directory forest. DCPROMO is also affected, meaning that servers can neither be promoted nor demoted"

upvoted 6 times 

GoforIT21

1 year, 10 months ago 

Well, one of the answer will be counted as correct obviously, so thanks for providing a clue here. (The link for this, by the way, is this: https://convergenttechonline.com/news/effects-of-losing-an-operations-master-fsmo-role-holder-in-relation-to-an-active-directory-forest-andor-domain/) I do still doubt that this is correct, as Microsoft themselves don't mention anything about this in their outline of the domain naming master role: https://learn.microsoft.com/en-us/troubleshoot/windows-server/identity/fsmo-roles. I mean, this would be a major constraint, why not name it explicitly? But well, better a some indication than no idea at all, I guess. Thanks again!

upvoted 2 times 

Sizz

1 year, 10 months ago 

It's not a new child domain being added, just a DC to an existing domain. All being said, troubleshooting error codes for promotion show two possible errors: 89 (RID master for the specified domain is offline) and 90 (Domain naming master is offline). https://learn.microsoft.com/en-us/windows-server/identity/ad-ds/deploy/troubleshooting-domain-controller-deployment I'd agree with other comments though - technically any role holder should be online for this kind of event, and whichever source DC is being used to replicate if the new DC is being dropped into another site.

upvoted 3 times