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Implementing and Operating Cisco Security Core Technologies v1.1 (350-701 SCOR v1.1) Exam Materials-Question 503 Discussion
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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? (Choose one answer)

  • A. UDP 1812
  • B. TCP 49
  • C. UDP 1700
  • D. TCP 8514
Correct Answer: C

Brave-Dump Clients Votes

C 100%

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RM 2026-07-03 12:53:15

Selected Answers: C


The true correct answer is C. UDP 1700.

Option A (UDP 1812): This is the standard port used for standard RADIUS Authentication traffic, not CoA.Option B (TCP 49): This is the standard port used for TACACS+ traffic, which is separate from RADIUS authentication and CoA mechanisms.Option D (TCP 8514): This is commonly used for secure Syslog over TLS traffic, unrelated to network access control authentication protocols.
  • Brave-Dumps.com Admin 2026-07-03 15:13:05
    Thanks

Brave-Dumps.com Admin 2026-07-03 15:13:28

Selected Answers: C


The session uses the following UDP ports:

* **RADIUS Authentication:** UDP/1645 and UDP/1812
* **RADIUS Accounting:** UDP/1646 and UDP/1813
* **RADIUS DTLS Authentication/Accounting:** UDP/2083
* **RADIUS Change of Authorization (CoA):** UDP/1700 for Send and Listen/Relay operations, and UDP/3799

Therefore, for the CoA question, option C (UDP/1700) is correct.