For which scenario would 'nohup' be particularly useful?

The use of 'nohup' is particularly advantageous when a process needs to continue running even if the user who initiated it logs out or their terminal session ends. This is precisely what 'nohup' stands for: "no hangup." By using this command, a user can start a process that will continue to execute in the background, effectively ignoring hangup signals that would normally terminate the process.

In practice, this feature is invaluable for long-running tasks or services that users want to start without needing to remain connected to the terminal session. For example, users often employ 'nohup' when running scripts or applications in a remote shell session, ensuring that their work continues independently of their connection status.

The other options highlight different scenarios that do not directly relate to the specific benefits provided by 'nohup.' For instance, running a command that requires user input would necessitate an active terminal session. Similarly, high memory usage or I/O blocking problems are not directly mitigated by the 'nohup' command. Instead, these scenarios would require different considerations regarding system resources or process management.