350-501 Architecture Practice Question
Which THREE are benefits of using EVPN over traditional VPLS? (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
✓
MAC address learning over the control plane (MAC mobility)
EVPN offers BGP-based control plane, multi-homing support, and MAC mobility. VPLS traditionally uses LDP and does not natively support multi-homing or MAC mobility as effectively.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
MAC address learning over the control plane (MAC mobility)
Why this is correct
EVPN advertises MACs via BGP, allowing mobility.
- ✓
BGP-based control plane for MAC/VXLAN route distribution
Why this is correct
EVPN uses BGP for control plane.
- ✓
Support for all-active multi-homing with ESI
Why this is correct
EVPN provides efficient multi-homing.
- ✗
Simpler configuration without BGP
Why it's wrong here
EVPN relies on BGP for MAC address distribution and multihoming capabilities, whereas traditional VPLS often uses LDP or targeted LDP for pseudowire signalling. This option is incorrect because the question asks for benefits of EVPN over VPLS, and EVPN inherently requires BGP to operate, making a configuration without BGP impossible. It is tempting because in other Layer 2 VPN contexts, such as simple point-to-point pseudowires, BGP is optional and LDP-only setups reduce overhead, but that scenario does not apply here.
- ✗
Lower latency due to MPLS label switching
Why it's wrong here
Both VPLS and EVPN can use MPLS; latency is not a distinguishing benefit.
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 |
Go deeper
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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