Which network services protocol runs over TCP port 636 for secure directory access?

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Study for the Network Security Instructional Terminology Test. Enhance your knowledge with multiple choice questions, each accompanied by hints and explanations. Ensure readiness for your exam!

Multiple Choice

Which network services protocol runs over TCP port 636 for secure directory access?

Explanation:
Directory services use LDAP to access and manage directory entries. When LDAP communications are secured with TLS/SSL, the protocol is called LDAPS, and it runs over TCP port 636. That combination—LDAPS, LDAP over SSL/TLS on 636—is what the question describes. The other options refer to different services and use their own ports: SMTP for mail, DNS for name resolution, and FTP for file transfers. While LDAP can also be secured on port 389 using STARTTLS, the specified port 636 identifies LDAPS.

Directory services use LDAP to access and manage directory entries. When LDAP communications are secured with TLS/SSL, the protocol is called LDAPS, and it runs over TCP port 636. That combination—LDAPS, LDAP over SSL/TLS on 636—is what the question describes. The other options refer to different services and use their own ports: SMTP for mail, DNS for name resolution, and FTP for file transfers. While LDAP can also be secured on port 389 using STARTTLS, the specified port 636 identifies LDAPS.

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