Courseiva
Question 405 of 978

350-701 Practice Question: Secure Network Access, Visibility and Enforcement

A security engineer is configuring Cisco ISE to enforce SGT-based access control. The engineer creates an SGACL on the switch that permits traffic from SGT 10 to SGT 20. However, traffic from SGT 10 to SGT 20 is still being dropped. The engineer verifies that the SGTs are correctly assigned. What is a possible reason for the drop?

⚠ Common exam trap

Cisco often tests the concept that SGACLs are processed in priority order (lowest sequence number first) and that a higher-priority deny rule can silently override a lower-priority permit rule, leading candidates to incorrectly assume the issue is with SGT assignment or protocol configuration.

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

There is a deny SGACL with a higher priority that matches the traffic

Cisco ISE enforces SGT-based access control using Security Group ACLs (SGACLs) that are evaluated in priority order. Even if a permit SGACL exists for SGT 10 to SGT 20, a deny SGACL with a higher priority (lower sequence number) that matches the same traffic will take precedence and cause the traffic to be dropped. The engineer must check the full SGACL list and their sequence numbers on the switch to identify conflicting rules.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • SXP is not configured

    Why it's wrong here

    SXP distributes SGTs but does not affect SGACL enforcement.

  • The CTRL protocol is not enabled

    Why it's wrong here

    CTRL is used for control plane communication, not for SGACL evaluation.

  • The PAC on the switch is expired

    Why it's wrong here

    PAC is used for 802.1X authentication, not TrustSec.

  • There is a deny SGACL with a higher priority that matches the traffic

    Why this is correct

    SGACLs are evaluated in order; a deny rule earlier in the list would override the permit rule.

Visual reference

Source Router + ACL permit 10.0.0.0/8 deny any Server 10.0.0.5 ✓ 192.168.1.1 ✗ dropped ACLs evaluate top-down; first match wins — implicit deny all at end

About these practice questions

Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →

How Courseiva writes practice questions · Editorial policy

Last reviewed: Jun 11, 2026

Question Discussion

Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.

Loading comments…

Sign in to join the discussion.

This 350-701 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 350-701 exam.