Final answer:
The statement is true; when a file system is not locked, it typically allows operations like queuing new messages. However, the behavior might vary based on system architecture and configuration.
Step-by-step explanation:
The statement "if the file system is not locked, then new messages will be queued" is true. In many operating systems and messaging applications, a file system that is not locked or otherwise engaged in an exclusive process allows for operations such as writing new data or, in this context, queuing new messages. When the file system is accessible, the messaging system should be able to append new incoming messages to the queue for processing.
However, it's important to recognize that this general behavior might vary depending on the specific system's architecture, configuration, and the protocols in use. The queuing mechanism is often part of a larger system that handles inter-process communication or network communication, ensuring that messages are correctly queued for further processing without data loss or corruption, even in scenarios where multiple processes might be attempting to read or write data simultaneously.