Implementing and Operating Cisco Security Core Technologies (SCOR) — Question 228

An engineer is configuring 802.1X authentication on Cisco switches in the network and is using CoA as a mechanism. Which port on the firewall must be opened to allow the CoA traffic to traverse the network?

Answer options

• A. UDP 1700
• B. TCP 6514
• C. UDP 1812
• D. TCP 49

Correct answer: A

Explanation

The correct answer is UDP 1700, which is used for Change of Authorization (CoA) messages in RADIUS. The other options are associated with different protocols or services that are not relevant to CoA traffic, such as TCP 6514 for syslog or UDP 1812, which is used for RADIUS authentication.