SISE Policy Enforcement Practice Question
Which of the following is a key requirement for dACL enforcement on a Cisco switch?
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
✓
The switch must support RADIUS dynamic authorization
The switch must be configured as a RADIUS client and the port must be enabled for 802.1X/MAB; the switch must support the 'dACL' feature.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The switch must be in Layer 3 mode
Why it's wrong here
dACLs are commonly enforced on Layer 2 access ports.
- ✗
The switch must be running in VTP Transparent mode
Why it's wrong here
VTP mode is irrelevant to dACL enforcement.
- ✗
The switch must have 'aaa authorization auth-proxy' enabled
Why it's wrong here
This is for other features, not standard dACLs.
- ✓
The switch must support RADIUS dynamic authorization
Why this is correct
Dynamic Authorization is required to apply the dACL to the session post-auth.
Quick reference
AAA Protocol Comparison
| Protocol | Port(s) | Encryption | Transport | Primary Use |
|---|---|---|---|---|
| RADIUS | 1812 / 1813 | Password only | UDP | Network access control |
| TACACS+ | 49 | Full packet | TCP | Device administration |
| Diameter | 3868 | Full session | TCP / SCTP | Carrier / mobile networks |
| 802.1X | — | EAP-based | Layer 2 | Port-based access control |
TACACS+ encrypts the entire packet; RADIUS only encrypts the password field — a key exam distinction.
About these practice questions
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Cisco exam blueprint
This SISE 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 SISE exam.