A network administrator is configuring network firewall policies and establishing service baselines. Match each protocol on the left with its default port number, transport layer protocol, and primary operational function on the right.
- RADIUSCentralized network access authentication and authorization over UDP port 1812
- POP3SEncrypted retrieval of stored user email messages from a mail server over TCP port 995
- TFTPUnauthenticated, connectionless transfer of device configuration files over UDP port 69
- SMBDirect network file sharing and printer access without NetBIOS over TCP port 445
Cevap
RADIUS matches Centralized network access authentication and authorization over UDP port 1812; POP3S matches Encrypted retrieval of stored user email messages from a mail server over TCP port 995; TFTP matches Unauthenticated, connectionless transfer of device configuration files over UDP port 69; SMB matches Direct network file sharing and printer access without NetBIOS over TCP port 445.
Each protocol is accurately matched with its standard port number, transport layer, and operational function: RADIUS uses UDP 1812 for authentication, POP3S uses TCP 995 for encrypted email retrieval, TFTP uses UDP 69 for simple file transfers, and SMB uses TCP 445 for direct network file sharing.
Adım Adım Çözüm
Anahtar Kavram
Standard Network Protocols, Default Port Numbers, and Transport Layer Services