Practice question 19 of 506 · medium
After one DC fails, new user creation works briefly on some DCs and later fails when their RID pools are exhausted. Which missing role explains that pattern?
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- RID master
DCs consume local RID pools, then need the RID master for additional allocation. The schema master governs schema updates, the infrastructure master cross-domain references, and the domain naming master forest domain changes; none replenishes RID pools.
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