Which statement is true about Distributed File System (DFS) namespaces?

The correct statement regarding Distributed File System (DFS) namespaces is that it does not have to be installed on all servers within an organization. DFS namespaces provide a way to group shared folders located on different servers into one or more logically structured namespaces, allowing users to access these resources through a unified path.

DFS operates in a way that only requires installation and configuration on specific servers that will host the namespace, typically servers that are hosts for shared folders. Therefore, not every server within the organization needs to have DFS installed; it is sufficient for the servers that play a direct role in hosting the DFS namespace.

In contrast, the other options present incorrect assertions about DFS namespaces. The requirement for installation on all servers is too restrictive for a technology designed to improve access and management of shared folders across multiple locations. Accessing DFS namespaces through File Explorer is possible and often a common method for users to interact with network resources, so stating that it cannot be accessed in that manner is inaccurate. Additionally, access-based enumeration, which restricts visibility of folders based on user permissions, is not enabled by default and requires explicit configuration to ensure security and appropriate access.