In a shared LAN, which statement about file access is true?

• A. Every user can edit any file
• B. Access is controlled by permissions
• C. Files on the LAN cannot be restricted
• D. LAN should not be used for distribution

Answer: (B)

Access to files on a shared LAN is governed by permissions. By assigning permissions to users or groups, you determine who can read, write, modify, or delete specific files or folders. This lets you enforce the principle of least privilege, protect sensitive information, and maintain auditability and integrity of records. In practice, a file server or shared drive uses a combination of user and group permissions (often layered with access control lists) to control access, so not everyone can edit every file.

The other statements don’t fit typical LAN setups because where permissions exist, access can be restricted; that means not every user can edit any file, and files can be restricted to protect confidentiality. Also, LANs are commonly used to distribute files within an organization, not avoided for that purpose.