350-401 Practice Question: Drag and drop each AAA service on the left to its…

Drag and drop each AAA service on the left to its matching protocol on the right.

Drag a concept onto its matching description — or click a concept then click the description.

Concepts

Matches

RADIUS

TACACS+

RADIUS

TACACS+

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

✓

Authentication: RADIUS

Authentication typically uses RADIUS, authorization uses TACACS+, accounting can use either, but RADIUS is more common for accounting; TACACS+ encrypts the entire packet and separates AAA functions.

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

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 18, 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…

Keep practising

Question 1,138 of 1,420

Next question

Scored practice sessions

Short scored sets — answer, get feedback, read the explanation, move on.

350-401 Practice Exam 2 — 20 Questions→350-401 Practice Questions 2 — 50 Questions→

Study by exam domain

Drill one exam section at a time instead of jumping between unrelated topics.

Virtualization Security Infrastructure

Practice by scenario

Filter questions by type — troubleshooting, exhibit, drag-and-drop, PBQ, ACLs, OSPF, and more.

Browse scenarios

Go deeper on a topic

One concept per page — questions, worked explanations, and a short concept guide.

ENCOR SD-WAN practice questions Virtualization practice questions ENCOR QoS practice questions ENCOR VLANs and trunking practice questions ENCOR BGP practice questions

Where to go next

350-401 practice test Exam domains ENCOR 350-401 exam guide

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.