SK0-004 · Question #468
A server technician has just installed a server with several roles. The technician then launches a command prompt, runs the netstat command, and notices the server is listening on the following…
The correct answer is B. Directory server. Ports 88, 389, 464, 3268, and 3269 are all associated with Active Directory directory services, identifying this server as a directory server.
Question
A server technician has just installed a server with several roles. The technician then launches a command prompt, runs the netstat command, and notices the server is listening on the following ports: 88, 389, 464, 3268, and 3269. Which of the following server roles is MOST likely installed on this server, given the ports above?
Options
- ADatabase server
- BDirectory server
- CMail server
- DWeb server
How the community answered
(32 responses)- A6% (2)
- B78% (25)
- C3% (1)
- D13% (4)
Why each option
Ports 88, 389, 464, 3268, and 3269 are all associated with Active Directory directory services, identifying this server as a directory server.
Database servers listen on ports such as 1433 (SQL Server), 3306 (MySQL), or 5432 (PostgreSQL), none of which appear in the observed port list.
These ports are the well-known ports for Active Directory and LDAP-based directory services: port 88 is Kerberos authentication, 389 is LDAP, 464 is Kerberos password change (kpasswd), 3268 is the Global Catalog LDAP port, and 3269 is Global Catalog LDAP over SSL - all core to a directory server role.
Mail servers use ports such as 25 (SMTP), 110 (POP3), 143 (IMAP), 465, and 587, which are entirely absent from the observed port list.
Web servers primarily listen on port 80 (HTTP) and 443 (HTTPS), neither of which is present among the five observed ports.
Concept tested: Active Directory and LDAP well-known port numbers
Source: https://learn.microsoft.com/en-us/troubleshoot/windows-server/identity/config-firewall-for-ad-domains-and-trusts
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