What type of file settings can be configured in the Admin Preferences?

The correct choice focuses on setting a maximum file size for uploads, which is an important aspect of managing file settings in Salesforce Community Cloud. By configuring this setting, community administrators can prevent users from uploading excessively large files that might lead to performance issues, storage concerns, or a poor user experience.

Setting a maximum file size helps maintain the integrity and efficiency of the community environment. This restriction allows administrators to enforce policies that align with organizational storage capabilities and compliance requirements, ensuring that shared resources are used responsibly and effectively.

The other options, while related to community management, do not specifically pertain to file settings. For instance, limiting the number of community members or controlling posts by community managers are administrative functions that speak to membership and content moderation rather than file upload characteristics. Disallowing files completely also goes beyond file settings into broader community policies but does not allow for controlled file usage, which is not conducive for communities that rely on file sharing for collaboration.