Which protocol is used for file sharing and printer access over a network?

Which protocol is used for file sharing and printer access over a network?

• A. Server Message Block (SMB)
• B. Simple Mail Transfer Protocol (SMTP)
• C. Hypertext Transfer Protocol (HTTP)
• D. Network Time Protocol (NTP)

Answer: (A)

Sharing resources like files and printers over a network relies on a protocol built for accessing remote resources as if they were local. That protocol is SMB—Server Message Block. It lets a client read and write files, access directories, and send print jobs to shared printers, all within a managed session with appropriate access controls. SMB operates in a client–server model over TCP/IP (commonly on port 445, with older systems using port 139) and supports features such as file locking and persistent sessions. It’s used by Windows networks and also implemented by Samba for cross‑platform sharing, which is why you can share resources between Windows and Unix-like systems. The other options don’t fit: SMTP is for email transfer, HTTP is for web pages, and NTP is for clock synchronization, none of which provide built-in mechanisms for file or printer sharing.

Sharing resources like files and printers over a network relies on a protocol built for accessing remote resources as if they were local. That protocol is SMB—Server Message Block. It lets a client read and write files, access directories, and send print jobs to shared printers, all within a managed session with appropriate access controls. SMB operates in a client–server model over TCP/IP (commonly on port 445, with older systems using port 139) and supports features such as file locking and persistent sessions. It’s used by Windows networks and also implemented by Samba for cross‑platform sharing, which is why you can share resources between Windows and Unix-like systems. The other options don’t fit: SMTP is for email transfer, HTTP is for web pages, and NTP is for clock synchronization, none of which provide built-in mechanisms for file or printer sharing.