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350-701 Practice Question: Which TWO of the following are valid methods for…
Which TWO of the following are valid methods for authenticating VPN users in a Cisco AnyConnect deployment?
⚠ Common exam trap
Cisco often tests the distinction between AAA protocols for device administration (TACACS+) versus user authentication (RADIUS/LDAP), and the trap here is that TACACS+ is a valid AAA protocol but is not used for VPN user authentication in AnyConnect.
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
✓
RADIUS
Cisco AnyConnect VPN authentication can be performed using RADIUS, which is a widely supported AAA protocol. RADIUS enables centralized authentication, authorization, and accounting for VPN users, and it is natively integrated with Cisco ASA and Firepower Threat Defense (FTD) appliances for remote access VPNs.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
TACACS+
Why it's wrong here
TACACS+ is for device administration, not VPN user authentication.
- ✗
OSPF
Why it's wrong here
OSPF is a routing protocol, not authentication.
- ✓
RADIUS
Why this is correct
RADIUS is commonly used for VPN authentication.
- ✓
LDAP
Why this is correct
LDAP can be used for direct authentication against directory services.
- ✗
SNMP
Why it's wrong here
SNMP is for network management, not authentication.
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 350-701 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.