# SHIFT

--- Sjoerd Hooft's InFormation Technology ---

### Site Tools

q:q145
##### Differences

This shows you the differences between two versions of the page.

 — q:q145 [2016/06/22 10:33] (current) Line 1: Line 1: + = Question 145 = + This page is part of Q, the IT exam trainer. \\ See https://​www.getshifting.com/​q for more info \\ \\ **Question:​** \\ Your network contains an Active Directory forest. The forest contains two domains named clipster.com and corp.clipster.com. The forest contains four domain controllers. + All domain controllers are DNS servers. In the corp.clipster.com domain, you plan to deploy a new domain controller named DCS.You need to identify which domain controller must be online to ensure that DCS can be promoted successfully to a domain controller. + Which domain controller should you identify? ​ \\ **Description:​** \\ The RID master is responsible for processing RID pool requests from all domain controllers in a particular domain. When a DC creates a security principal object such as a user or group, it attaches a unique Security ID (SID) to the object. This SID consists of a domain SID (the same for all SIDs created in a domain), and a relative ID (RID) that is unique for each security principal SID created in a domain. Each DC in a domain is allocated a pool of RIDs that it is allowed to assign to the security principals it creates. When a DC’s allocated RID pool falls below a threshold, that DC issues a request for additional RIDs to the domain’s RID master. The domain RID master responds to the request by retrieving RIDs from the domain’s unallocated RID pool and assigns them to the pool of the requesting DC. At any one time, there can be only one domain controller acting as the RID master in the domain. ​ \\ \\ **Correct Answer:** \\ The RID master in the corp.clipster.com domain. \\ {{tag>​qq}} \\