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350-401 Practice Question: Which two statements about AAA authorization and…
Which two statements about AAA authorization and accounting are true? (Choose two.)
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
✓
Authorization determines what commands a user is allowed to execute after authentication.
The correct answers describe the purpose of authorization and accounting. Option A is correct because authorization controls what commands or services a user can access. Option D is correct because accounting records user activity for auditing and billing. Option B is wrong because authorization does not encrypt traffic; encryption is a separate function. Option C is wrong because accounting does not authenticate users; it logs actions. Option E is wrong because authorization can be based on user or group attributes, not just the source IP.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Authorization determines what commands a user is allowed to execute after authentication.
Why this is correct
Correct because authorization enforces policies on what resources or commands a user can access.
- ✗
Authorization ensures that all traffic between the client and server is encrypted.
Why it's wrong here
Incorrect because authorization does not provide encryption; it controls access rights.
- ✗
Accounting is used to authenticate users based on their previous login history.
Why it's wrong here
Incorrect because accounting tracks and logs events, not authenticate users.
- ✓
Accounting provides a record of user activities for auditing or billing purposes.
Why this is correct
Correct because accounting collects data on user actions for logging or billing.
- ✗
Authorization can only be based on the source IP address of the user.
Why it's wrong here
Incorrect because authorization can use many attributes, such as username, group, or time.
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.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-401 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 350-401 exam.