PT0-002 Reconnaissance and Enumeration Practice Question
A penetration tester is enumerating SMB shares on a Windows host during an internal assessment. The tester has valid domain credentials for a low-privileged user and wants to list shares and identify accessible files without triggering account lockouts. Which tool and approach is most appropriate?
⚠ Common exam trap
The trap here is assuming brute-forcing or unauthenticated enumeration is needed, when valid low-privileged credentials already allow safe, authenticated SMB share enumeration.
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
✓
Use smbclient with the -L option and the low-privileged credentials to list shares, then connect to accessible shares
smbclient with the -L option uses the supplied low-privileged credentials to list shares without password guessing, avoiding lockouts. It then allows connecting to shares the user can access to browse files. Brute-forcing is unnecessary and risky, unauthenticated enumeration may be blocked, and using the guest account ignores available valid credentials.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Use smbclient with the -L option and the low-privileged credentials to list shares, then connect to accessible shares
Why this is correct
smbclient with -L lists shares using provided credentials and does not perform password guessing, so it will not cause lockouts. It allows the tester to connect to shares the low-privileged user can access and browse files. This approach respects the credential constraint and avoids brute-force behavior that could lock the account.
- ✗
Run Nmap with the smb-enum-shares script using the guest account
Why it's wrong here
The smb-enum-shares script can list shares, but using the guest account ignores the available low-privileged credentials and may fail if guest access is disabled. It also does not browse file contents within accessible shares. This approach is less effective than authenticating with the known valid user account to enumerate and access shares.
- ✗
Use enum4linux with the -a option to perform all enumeration checks without credentials
Why it's wrong here
enum4linux -a performs extensive enumeration including share listing, but it typically attempts null sessions and may not use the provided credentials effectively. It can generate significant traffic and may trigger alerts. Since the tester has valid credentials, using them directly is more reliable and less noisy than relying on unauthenticated enumeration that may fail on hardened hosts.
- ✗
Run a brute-force SMB login attack with Medusa using a password list against the low-privileged account
Why it's wrong here
Brute-forcing the low-privileged account's password is unnecessary because valid credentials are already available, and repeated failed attempts could trigger account lockout policies. This approach risks disrupting the assessment and violating the requirement to avoid lockouts. It also does not directly enumerate shares or files once access is obtained.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official CompTIA exam blueprint
This PT0-003 practice question is part of Courseiva's free CompTIA 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 PT0-003 exam.