mediumMultiple SelectObjective-mapped
CCNP Practice Question: Which two statements about LISP in Cisco…
Which two statements about LISP in Cisco SD-Access 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
✓
The LISP Map Server stores the mapping between endpoint identifiers (EIDs) and routing locators (RLOCs).
LISP (Locator/ID Separation Protocol) is the control plane in SD-Access. The Map Server (MS) maintains the EID-to-RLOC mapping database, and the Map Resolver (MR) handles Map-Request queries. The EID represents the endpoint identity (IP address), while the RLOC is the routing locator (IP address of the fabric node). LISP does not perform encapsulation; VXLAN does. LISP uses UDP ports 4342 (data plane) and 4341 (control plane), not TCP. The EID is typically the host IP, not the MAC address.
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 LISP Map Server stores the mapping between endpoint identifiers (EIDs) and routing locators (RLOCs).
Why this is correct
Correct because the Map Server is the central database that holds EID-to-RLOC mappings for the fabric.
- ✗
LISP encapsulation is used to forward data traffic between fabric edge nodes.
Why it's wrong here
Incorrect because LISP is only the control plane; data plane encapsulation is done by VXLAN, not LISP.
- ✓
The LISP Map Resolver processes Map-Request messages and responds with the RLOC of the destination EID.
Why this is correct
Correct because the Map Resolver handles queries and returns the RLOC from the Map Server's database.
- ✗
LISP uses TCP port 4342 for control plane communication.
Why it's wrong here
Incorrect because LISP uses UDP port 4342 for data plane (encapsulated traffic) and UDP 4341 for control plane.
- ✗
The EID in LISP represents the MAC address of the endpoint device.
Why it's wrong here
Incorrect because the EID is the IP address of the endpoint, not the MAC address.
Visual reference
Quick reference
Access Control Model Comparison
| Model | Acronym | Who Controls Access? | Best For |
|---|---|---|---|
| Discretionary Access Control | DAC | Resource owner | Small teams, file shares |
| Mandatory Access Control | MAC | System / security labels | Classified govt / military |
| Role-Based Access Control | RBAC | Administrator (via roles) | Enterprise environments |
| Attribute-Based Access Control | ABAC | Policy engine (user + resource attributes) | Fine-grained, dynamic policies |
| Rule-Based Access Control | RuBAC | System rules / ACLs | Firewall rules, network ACLs |
About these practice questions
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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.