Explanation
While a host is Network contained, the administrator can allow the host to access internal network resources on specific IP addresses to perform patching and remediation by configuring a Containment Policy with the specific IP addresses. This policy allows users to specify which ports, protocols and IP addresses are allowed or blocked during network containment. The other options are either incorrect or not related to network containment. Reference: [CrowdStrike Falcon User Guide], page 40.

Explanation
The administrator can create a detection-only policy by setting the Next-Gen Antivirus detection settings to the desired detection level and all the prevention sliders to disabled in the policy's settings. This will allow Falcon to detect but not prevent threats on the hosts using this policy. Do not activate any of the other blocking or malware prevention options, as they will enable prevention actions. The other options are either incorrect or not related to creating a detection-only policy. Reference: [CrowdStrike Falcon User Guide], page 35.

Explanation
When performing targeted filtering for a host on the Host Management Page, the filter bar attribute that is not case-sensitive is Hostname. The Hostname attribute allows you to filter hosts by their computer name or DNS name. The Hostname filter is not case-sensitive, meaning that it will match hosts regardless of the capitalization of their names. For example, filtering by hostname=DESKTOP-1234 will match hosts with names such as DESKTOP-1234, desktop-1234, or Desktop-12342.
References: 2: Cybersecurity Resources | CrowdStrike

Explanation
Regex guidelines https://falcon.crowdstrike.com/documentation/68/detection-and-prevention-policies#regex