According to the OSI model, which layer defines network topologies (star, ring, bus etc)?

The hex BF value in decimal is 191. What is the value of hex BF in binary?

Which one is a valid disadvantage of Client Server networks?

Which access technique is used by Ethernet?

The administrator of XYZ company finds that one of the users in his network is trying to upload some unwanted material. He needs to prevent that user from uploading that immediately without effecting the work of other users who are accessing shared folders from the server. How should he disconnect that user without wasting time?

Multiple display is configured for User A but one user application failed to display on the secondary display. Troubleshoot.

What console must be used to move the domain Naming Master FSMO role?

Group policy management started being natively installed with what version of windows server?

What process can be used by windows server 2008 DNS to clean up the DNS database after DNS records become "stale" or out of date?

What type of file can be written to allow non-windows Installer compliant applications to be deployed?

For both intrasite and intersite replication what protocol does Active Directory use for all replication traffic?