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350-401 Practice Question: The default load-balancing method used by Cisco…
What is the default load-balancing method used by Cisco switches for EtherChannel?
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
✓
Source MAC address
Cisco switches default to source MAC address-based load balancing for EtherChannel. This method distributes traffic based on the source MAC address of the frame, which can lead to uneven distribution if traffic patterns are not diverse.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Source MAC address
Why this is correct
Correct. The default is src-mac on most Cisco switches.
- ✗
Destination MAC address
Why it's wrong here
Incorrect. The default is not dst-mac; it is src-mac.
- ✗
Source IP address
Why it's wrong here
Incorrect. Source IP is not the default; it is an optional method.
- ✗
Source and destination IP address
Why it's wrong here
Incorrect. This is an optional method but not the default.
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 |
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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.