SISE Network Access Device Administration Practice Question
When setting up TACACS+ for network administration, which THREE configurations must be present on the Cisco network device? (Choose three)
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
✓
AAA authentication/authorization commands
The switch needs the TACACS+ server IP, the shared secret, and the AAA command authorization configured.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
AAA authentication/authorization commands
Why this is correct
This enables the AAA framework.
- ✗
Local user database for all commands
Why it's wrong here
The point of TACACS+ is to centralize this.
- ✗
RADIUS server configuration
Why it's wrong here
This is for RADIUS, not TACACS+.
- ✓
Shared secret matching the ISE configuration
Why this is correct
Required for packet integrity.
- ✓
TACACS+ server group configuration
Why this is correct
The switch must know where to send requests.
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.