NSE4 System and Network Administration Practice Question
A FortiGate is configured in transparent mode. Which of the following statements is true?
⚠ Common exam trap
Test-takers frequently assume transparent mode still supports routing or NAT because they confuse it with NAT/route mode, but transparent mode explicitly disables routing and NAT, focusing solely on Layer 2 bridging and firewall inspection.
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 FortiGate interfaces have IP addresses for management only
In transparent mode, the FortiGate operates as a Layer 2 bridge, forwarding traffic based on MAC addresses rather than IP addresses. Interfaces do not require IP addresses for data forwarding; they only need IP addresses for management access (e.g., HTTPS, SSH, or SNMP). This makes option D correct.
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 FortiGate can have multiple routing tables
Why it's wrong here
Routing is not performed in transparent mode.
- ✗
The FortiGate supports VLAN sub-interfaces
Why it's wrong here
VLAN sub-interfaces are possible, but the statement is too generic and not the distinguishing feature.
- ✗
The FortiGate acts as a router and performs NAT
Why it's wrong here
Transparent mode is layer 2, no routing or NAT.
- ✓
The FortiGate interfaces have IP addresses for management only
Why this is correct
Interfaces are in bridge mode; a management IP is assigned to the bridge.
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
This NSE4 practice question is part of Courseiva's free Fortinet 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 NSE4 exam.