RDP uses which port number?

RDP uses which port number?

• A. 3389
• B. 161
• C. 512
• D. 88

Answer: (A)

RDP, which enables remote graphical access to Windows machines, uses TCP port 3389 by default. This is the standard port assigned for Remote Desktop connections, and firewall rules or network access controls typically reference this port for RDP traffic. Note that it can be changed in configurations for security, but 3389 is the default. The other ports correspond to different services (for example, 161 is SNMP, 512 is an older remote execution service, and 88 is Kerberos), so they don’t describe RDP usage.

RDP, which enables remote graphical access to Windows machines, uses TCP port 3389 by default. This is the standard port assigned for Remote Desktop connections, and firewall rules or network access controls typically reference this port for RDP traffic. Note that it can be changed in configurations for security, but 3389 is the default. The other ports correspond to different services (for example, 161 is SNMP, 512 is an older remote execution service, and 88 is Kerberos), so they don’t describe RDP usage.