Which of the following ports creates a secure connection to a directory service?

Rationale

Port 636 creates a secure connection to a directory service.

Port 636 is used for the secure version of the Lightweight Directory Access Protocol (LDAP), known as LDAPS, which encrypts the data exchange between the client and the directory service to ensure confidentiality and integrity.

A (22) YOUR ANSWER

Port 22 is primarily used for Secure Shell (SSH) connections, which facilitate secure remote login and command execution over unsecured networks. While SSH provides encryption, it is not related to directory services or LDAP, and thus does not create a secure connection specifically for those purposes.

B (389) YOUR ANSWER

Port 389 is designated for unencrypted LDAP communications. While it allows access to directory services, it does not provide the security features necessary to protect the data during transmission, making it unsuitable for secure connections.

C (445) YOUR ANSWER

Port 445 is utilized for Microsoft Directory Services and Server Message Block (SMB) protocol communications, primarily related to file sharing and network resource access. It is not involved in establishing secure connections to directory services, nor does it pertain to LDAP.

D (636) CORRECT

Port 636 is the correct port for secure LDAP (LDAPS). This port ensures that all communications between clients and directory services are encrypted, protecting sensitive information from interception during transit.

Conclusion

In summary, while ports 22, 389, and 445 serve various networking and directory service functions, only port 636 is specifically designed to create a secure connection to directory services via LDAPS. Ensuring data security in directory services is crucial in modern network environments, making the use of port 636 essential for secure communications.

Which of the following ports creates a secure connection to a directory service?

Port 636 creates a secure connection to a directory service.

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