CND Network Defense Management Practice Question

A network defense administrator is reviewing security baselines using the Center for Internet Security (CIS) Benchmarks. A particular benchmark rule requires disabling the LLMNR (Link-Local Multicast Name Resolution) protocol on Windows domain member servers. Which security risk does this policy directly mitigate?

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

✓

LLMNR/NBT-NS poisoning and credential relay attacks

Disabling LLMNR and NBT-NS mitigates spoofing and responder attacks (such as LLMNR/NBT-NS poisonings) used to capture NTLMv2 password hashes.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✗
SQL injection vulnerabilities in web application forms
Why it's wrong here
SQL injection is an application-layer vulnerability.
✓
LLMNR/NBT-NS poisoning and credential relay attacks
Why this is correct
Disabling LLMNR prevents attackers from intercepting name resolution queries to capture hashes.
✗
BGP prefix hijacking and route table poisoning
Why it's wrong here
BGP affects wide-area routing, not local Windows name resolution protocols.
✗
DNS zone transfer enumeration via nslookup
Why it's wrong here
DNS zone transfers are handled by TCP port 53 on DNS servers.

About these practice questions

This CND question is part of Courseiva's 323-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →

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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

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