A Samba log file contains the entry 'NT_STATUS_LOGON_FAILURE'. What does this error message typically indicate?

The username or password is incorrect

The server is out of disk space

A Samba server is configured with 'server min protocol = SMB2_10' and 'server max protocol = SMB3_11'. A Linux client using smbclient fails to connect, but Windows clients work fine. The administrator runs smbclient -L //server -U user and receives 'protocol negotiation failed'. What is the most likely cause?

The Linux client's smbclient version only supports SMB1.

The Samba server's firewall is blocking the Linux client's IP address.

The Samba server's 'server max protocol' is set too high for the Linux client.

The Linux client is using a different workgroup than the Samba server.

A Samba share is configured with 'read only = no', but a Windows client still cannot write to files in the share. Which Linux file system permission is most likely preventing writes?

The 'writable' parameter is set to no

The files are owned by root with 644 permissions

The 'guest ok' parameter is set to yes

Two users are editing the same spreadsheet on a Samba share. One user saves changes successfully, but the other receives a 'file is locked by another user' error. The administrator runs smbstatus and sees both users have the file open. What is the most likely cause of the lock error?

The share is configured with 'share modes = no', preventing multiple users from opening the same file.

The Samba server has a 'strict locking' parameter set to 'no', causing inconsistent lock behavior.

The Samba server's 'lock directory' is full, preventing new locks from being created.

The application on the second user's client is using mandatory byte-range locks that conflict with the first user's locks.

LPIC-3 Mixed Environments

Domain 3Objective 4

392.4 Troubleshooting Samba (weight: 2) LPIC-3-MIXED-ENVIRONMENTS Practice Questions (Page 6)

Part of the Topic 392: Samba Basics domain, which makes up ~24% of our current practice bank. Linux Professional Institute does not publish an official question count, but from its 90-minute exam (~35–60 total, ~8–14 in this domain), expect 2–3 from this objective — we provide 41 practice questions to prepare you well beyond it. (estimate)

41questions here

9free pages

12concepts

12 Concepts in This Objective

Identify Samba log files and log levels
Use testparm to validate configuration
Use smbclient for connectivity testing
Use smbstatus to monitor active connections
Troubleshoot name resolution issues
Troubleshoot authentication and permission problems
Troubleshoot network and firewall issues
Troubleshoot SMB protocol and dialect mismatches
Troubleshoot printing problems
Troubleshoot file locking and share mode issues
Use Samba debugging tools and techniques
Interpret Samba error messages and logs

Questions 26–30

26foundation · easy
A Samba log file contains the entry 'NT_STATUS_LOGON_FAILURE'. What does this error message typically indicate?
Select an answer first
27expert · hard
A Samba server is configured with 'server min protocol = SMB2_10' and 'server max protocol = SMB3_11'. A Linux client using smbclient fails to connect, but Windows clients work fine. The administrator runs smbclient -L //server -U user and receives 'protocol negotiation failed'. What is the most likely cause?
Select an answer first
28foundation · easy
A Samba share is configured with 'read only = no', but a Windows client still cannot write to files in the share. Which Linux file system permission is most likely preventing writes?
Select an answer first
29foundation · easy
A Windows client fails to connect to a Samba server with an error about an invalid protocol. Which Samba configuration parameter controls the minimum SMB protocol version that the server will accept?
Select an answer first
30application · medium
Two users are editing the same spreadsheet on a Samba share. One user saves changes successfully, but the other receives a 'file is locked by another user' error. The administrator runs smbstatus and sees both users have the file open. What is the most likely cause of the lock error?
Select an answer first

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392.4 Troubleshooting Samba (weight: 2) LPIC-3-MIXED-ENVIRONMENTS Practice Questions (Page 6)

Questions 26–30

A Samba log file contains the entry 'NT_STATUS_LOGON_FAILURE'. What does this error message typically indicate?

A Samba share is configured with 'read only = no', but a Windows client still cannot write to files in the share. Which Linux file system permission is most likely preventing writes?

A Windows client fails to connect to a Samba server with an error about an invalid protocol. Which Samba configuration parameter controls the minimum SMB protocol version that the server will accept?

Two users are editing the same spreadsheet on a Samba share. One user saves changes successfully, but the other receives a 'file is locked by another user' error. The administrator runs smbstatus and sees both users have the file open. What is the most likely cause of the lock error?

Keep studying — Topic 392: Samba Basics