Exam SK0-005 topic 1 question 140 discussion

C. Share permissions The most likely cause of the access issue is the share permissions. Even though Group A was granted full control over the files, it's possible that the share permissions are restricting access to the files. Share permissions are used to control access to a shared folder or file across the network, and they can be set independently of the NTFS permissions that control access to the files on the local system. SIEM policies, IDS rules, and firewall ports are all security measures that could potentially impact access to the files, but they are less likely to be the cause of the access issue in this scenario.

Share Permissions When a resource is shared over a network, it can be assigned Read, Change, Full Control, or Deny permissions on the share. Windows supports user-level security; users have permissions depending upon who they are. Share permissions only protect the resource from access over the network. Local access can only be secured by NTFS permissions. The Official CompTIA Server+ Study Guide (Exam SK0-005) page 264. Resource Access Many help desk tickets and user complaints center around access to resources. Frequently, these issues are tied to permissions. In Windows, file access is managed by NTFS permissions and by Share permissions when accessing the file from across the network. In Linux, file access is controlled by standard permissions and by NFS permissions when accessing the data from across the network. Ensuring these permissions are set correctly eases many user frustrations and provides users access to the files that they need. Viruses and other malware also impact the ability of users to access resources. The Official CompTIA Server+ Study Guide (Exam SK0-005) page 224.