CND Network Attacks And Defense Strategies Practice Question
An attacker targets an enterprise Active Directory domain by performing a DCSync attack, successfully replicating domain controller password data without being a domain controller. Which Active Directory access control rights must be audited and protected to prevent non-administrative users from executing DCSync?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Audit and restrict the 'Replicating Directory Changes' and 'Replicating Directory Changes All' extended access rights on the domain object.
DCSync relies on specific Active Directory replication rights: 'Replicating Directory Changes' (GUID 11f46d12-861c-4d42-b41c-50f443a82f7f) and 'Replicating Directory Changes All'. Ensuring that only authorized Domain Controllers hold these extended rights is critical.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Audit and restrict the 'Replicating Directory Changes' and 'Replicating Directory Changes All' extended access rights on the domain object.
Why this is correct
DCSync requires these specific domain-level replication rights to impersonate a domain controller.
- ✗
Enforce LDAP signing and channel binding on all domain controller NTDS settings.
Why it's wrong here
LDAP signing protects against LDAP relay attacks, not RPC-based directory replication.
- ✗
Monitor the 'GenericAll' and 'WriteDacl' permissions on all computer account objects.
Why it's wrong here
GenericAll and WriteDacl permit object ownership takeover, but not DCSync replication.
- ✗
Disable NT LAN Manager (NTLM) authentication and enforce Kerberos ticket granting settings.
Why it's wrong here
NTLM hardening prevents pass-the-hash, but DCSync operates over authenticated RPC using replication rights.
Visual reference
About these practice questions
One of 323 original CND practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official EC-Council exam blueprint
This CND practice question is part of Courseiva's free EC-Council certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CND exam.