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Zorluk: OrtaNetworking Ports and Protocols

A network administrator is documenting firewall port configurations for several internal network services. Match each networking protocol on the left with its corresponding default transport layer port on the right.

  • SFTP (Secure File Transfer Protocol)TCP 22
  • IMAPS (Internet Message Access Protocol Secure)TCP 993
  • DNS (Domain Name System)UDP/TCP 53
  • SMB (Server Message Block)TCP 445

Cevap

SFTP matches with TCP 22; IMAPS matches with TCP 993; DNS matches with UDP/TCP 53; SMB matches with TCP 445.
Each networking protocol relies on a specific default transport layer port for network communication: SFTP operates over SSH on TCP port 22, IMAPS uses TCP port 993 for encrypted mail retrieval, DNS uses UDP/TCP port 53 for name resolution, and SMB uses TCP port 445 for direct file and print sharing.

Adım Adım Çözüm

1
Identify the default port for SFTP
SFTP relies on SSH security, which operates on TCP port 22.
Secure file transfers conducted via SFTP utilize the standard SSH port.
2
Identify the default port for IMAPS
IMAPS operates over TCP port 993.
Secure IMAP wraps standard IMAP traffic in SSL/TLS on TCP port 993.
3
Identify the default port for DNS
DNS uses UDP/TCP port 53.
Hostname resolution queries primarily run over UDP port 53, using TCP port 53 when responses exceed standard packet limits.
4
Identify the default port for SMB
SMB operates directly over TCP port 445.
Modern network file sharing via SMB communicates natively over TCP port 445.

Anahtar Kavram

Standard Network Protocol Port Assignments
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Konular

Networking Ports and Protocols

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