Management console mmc active directory schema snap

Management Console (MMC) Active Directory Schema snap-in to specify additional attributes to meet the
needs of their installation. In the Active Directory Schema snap-in, you can select the Replicate this attribute to
the global catalog check box to designate an attributeSchema object as a member of the PAS , which sets the
value of the isMemberOfPartialAttributeSet attribute to TRUE.
QUESTION 5
Your network contains an Active Directory forest. The forest contains one domain named contoso.com.
You discover the following event in the Event log of domain controllers: "The request for a new account-
identifier pool failed. The operation will be retried until the request succeeds. The error is " %1 ""
You need to ensure that the domain controllers can acquire new account-identifier pools successfully.
What should you do?
A. Move the PDC emulator role.
B. Move the schema master role.
C. Move the global catalog server.
D. Move the domain naming master role.
E. Move the infrastructure master role.
F. Move the RID master role.
G. Restart the Active Directory Domain Services (AD DS) service.
H. Deploy an additional global catalog server.
I. Move the bridgehead server.
J. Install a read-only domain controller (RODC).
Correct Answer: F
Section: (none)
Explanation
Explanation/Reference:
Practically the same question as J/Q26.

This error can occur when the server holding the RID master role is not available to provide a new RID pool.
Moving the RID master role to another domain controller will resolve this.
Reference :
Event ID 16651 — RID Pool Request
Users, computers, and groups stored in Active Directory are collectively known as security principals. Each
security principal is assigned a unique alphanumeric string called a SID. The SID includes a domain prefix
identifier that uniquely identifies the domain and a relative identifier (RID) that uniquely identifies the security
principal within the domain. The RID is a monotonically increasing number at the end of the SID.
Each domain controller is assigned a pool of RIDs from the global RID pool by the domain controller that holds
the RID master role (also known as flexible single master operations or FSMO) in each Active Directory
domain. The RID master (also known as the RID pool manager, RID manager, or RID operations master) is
responsible for issuing a unique RID pool to each domain controller in its domain. By default, RID pools are
obtained in increments of 500. (...) Newly promoted domain controllers must acquire a RID pool before they can
advertise their availability to Active Directory clients or share the SYSVOL. Existing domain controllers require
additional RID allocations in order to continue creating security principals when their current RID pool becomes
depleted.