CPENT Network And Perimeter Exploitation Practice Question
During network enumeration of a Windows domain, a penetration tester discovers multiple legacy services running. Which TWO protocols or services, if enabled, frequently expose sensitive domain or system information without requiring authentication? (Choose TWO)
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
✓
SMB / NetBIOS service enumeration
LDAP (without signing/anonymous binds) and SNMP (with default community strings) or SMB/RPC often expose information. Specifically, SNMP and LDAP or SMB NetBIOS services. Let's choose SNMP and SMB.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
SMB / NetBIOS service enumeration
Why this is correct
SMB and NetBIOS often allow anonymous or null-session enumeration of shares, users, and server details.
- ✗
HTTPS with modern TLS 1.3
Why it's wrong here
Modern HTTPS with TLS 1.3 is secure and does not expose unauthenticated system details.
- ✗
IPsec VPN tunnels
Why it's wrong here
IPsec tunnels require strict cryptographic authentication before establishing connectivity.
- ✗
SSH v2 with public key authentication
Why it's wrong here
SSH v2 configured for keys only is highly secure against unauthenticated access.
- ✓
SNMP (Simple Network Management Protocol) with default community strings
Why this is correct
SNMP often exposes extensive system configurations and inventory without authentication if default community strings are used.
About these practice questions
One of 274 original CPENT 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 CPENT 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 CPENT exam.