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Zorluk: OrtaCommon Ports and Protocols

A network analyst is reviewing security baseline configurations across enterprise infrastructure servers. Match each network protocol on the left with its corresponding default transport protocol, port number, and primary operational function on the right.

  • LDAPSTCP 636: Secure directory service authentication and query operations
  • SFTPTCP 22: Encrypted file transfer leveraging Secure Shell protocol
  • SNMPUDP 161: Polling managed network devices for status and performance metrics
  • RDPTCP 3389: Graphical remote desktop administration for Windows host systems

Cevap

LDAPS pairs with TCP 636 for secure directory services; SFTP pairs with TCP 22 for encrypted file transfers over SSH; SNMP pairs with UDP 161 for device polling; and RDP pairs with TCP 3389 for graphical remote desktop sessions.
Each network protocol correctly corresponds to its standard transport protocol, default port number, and administrative use case: LDAPS uses TCP 636 for secure directory services; SFTP uses TCP 22 for secure SSH file transfers; SNMP uses UDP 161 for device monitoring; and RDP uses TCP 3389 for graphical remote desktop connections.

Adım Adım Çözüm

1
Determine the transport protocol and port for secure LDAP (LDAPS).
LDAPS uses TCP port 636.
Standard unencrypted LDAP uses TCP port 389, whereas TLS-encrypted LDAPS uses TCP port 636.
2
Determine the transport protocol and port for SSH File Transfer Protocol (SFTP).
SFTP uses TCP port 22.
SFTP operates as an extension of SSH and relies on the default SSH port TCP 22.
3
Determine the transport protocol and port for Simple Network Management Protocol (SNMP) polling.
SNMP polling uses UDP port 161.
SNMP request and response messages between NMS managers and network device agents run over connectionless UDP port 161.
4
Determine the transport protocol and port for Remote Desktop Protocol (RDP).
RDP uses TCP port 3389.
Microsoft RDP utilizes TCP port 3389 to deliver interactive GUI remote administration.

Anahtar Kavram

Standard Network Ports and Transport Layer Protocols
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