LPIC-2 Advanced Networking Configuration Practice Question
Which THREE of the following are valid bonding modes in Linux?
⚠ Common exam trap
Many exam-takers confuse the number of bonding modes (7) with the mode numbers themselves, incorrectly assuming modes 7 or 8 exist, or they may recall that some proprietary or virtual switch implementations support additional modes not present in the standard Linux bonding driver.
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
✓
mode 2 (balance-xor)
(mode 2, balance-xor) is a valid bonding mode that uses a hash policy (typically based on MAC addresses) to select a slave interface for outgoing traffic, providing both load balancing and fault tolerance. It is one of the seven standard bonding modes defined in the Linux kernel bonding driver (modes 0 through 6).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
mode 2 (balance-xor)
Why this is correct
XOR balancing– a valid bonding mode.
- ✗
mode 8
Why it's wrong here
Mode 8 is not defined in the Linux bonding driver.
- ✓
mode 1 (active-backup)
Why this is correct
Active-backup– a valid bonding mode.
- ✓
mode 0 (balance-rr)
Why this is correct
Round-robin– a valid bonding mode.
- ✗
mode 7
Why it's wrong here
Mode 7 is not defined in the Linux bonding driver.
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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