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Answer confirmed
Preamble

Your network contains an Active Directory Domain Services (AD DS) forest named contoso.com. The root domain contains the domain controllers shown in the following table.

Question

A failure of which domain controller will prevent you from creating application partitions?

Proposed answer
  • A. DC1
  • B. DC2
  • C. DC3
  • D. DC4
  • E. DC5
Suggested answer

A. DC1 (Domain naming master)

Correct answer

The suggested answer is correct

The Domain Naming Master FSMO role owner is the DC responsible for making changes to the forest-wide domain name space of the directory in the Partitions container. This DC is the only one that can add or remove a domain or application NC from the directory. It can also add or remove cross references to domains in external directories. Only the Domain Naming Master FSMO role owner can write to the Partitions container or its children. There is only one Domain Naming Master FSMO role per forest.

Reference

Comments
Pandaguo

Highly Voted 2 years, 6 months ago 

Selected Answer: A

Initial replication and connectivity requirements This FSMO role holder is only active when the role owner has inbound replicated the configuration NC successfully since the Directory Service started. Domain members of the forest only contact the FSMO role holder when they update the cross-references. 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. https://docs.microsoft.com/en-us/troubleshoot/windows-server/identity/fsmo-roles#domain%20naming

upvoted 11 times 

AvoKikinha

2 years, 6 months ago 

Correct!

upvoted 4 times 

syu31svc

Most Recent 1 month, 3 weeks ago 

Selected Answer: A

A for answer as supported by link given Domain naming master FSMO role The domain naming master FSMO role holder is the DC responsible for making changes to the forest-wide domain name space of the directory, that is, the Partitions\Configuration naming context or LDAP://CN=Partitions, CN=Configuration, DC=<domain>. This DC is the only one that can add or remove a domain from the directory. It can also add or remove cross references to domains in external directories. Initial replication and connectivity requirements This FSMO role holder is only active when the role owner has inbound replicated the configuration NC successfully since the Directory Service started. Domain members of the forest only contact the FSMO role holder when they update the cross-references. 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.

upvoted 2 times 

ESAJRR

1 year, 1 month ago 

Selected Answer: A

A. DC1

upvoted 1 times 

ahmadano

2 years, 4 months ago 

A is correct

upvoted 2 times 

Unitec

2 years, 5 months ago 

Correcto

upvoted 3 times 

AvoKikinha

2 years, 6 months ago 

Selected Answer: A

Correct!

upvoted 3 times