What does the IPS sensor filter configuration imply?

The correct understanding of the IPS sensor filter configuration is that it specifies the actions taken when traffic matches certain predefined signatures. When configured to block, the IPS sensor will prevent matching traffic from being successfully transmitted, thereby mitigating potential attacks. This function is essential in maintaining network security, as it actively intercepts threats identified by the IPS based on the configured signatures.

In this context, the other options do not accurately reflect the implications of the IPS sensor filter configuration. For example, claiming that all attacks targeting Linux servers are logged is overly specific and does not capture the broader functionality of the IPS as it is capable of addressing a wide range of threats across different platforms. Stating that the configuration applies to all IPS policies disregards the fact that there may be exceptions or specific rules that could alter how each policy operates based on specific criteria or requirements. Lastly, while changes to an IPS configuration may take effect immediately in certain conditions, it is also possible that a restart of the service is required for all changes to be fully implemented, making this statement too definitive. Thus, the assertion that the sensor will block matching traffic signatures correctly encapsulates the primary role of IPS in traffic filtering.