Exam F5CAB2 Topic 2 Question 66 Discussion

Actual exam question for F5's F5CAB2 exam
Question #: 66
Topic #: 2
To increase the available bandwidth of an existing trunk, the BIG-IP Administrator plans to add additional interfaces. Which command should the BIG-IP Administrator run from within the bash shell? (Choose one answer)

Suggested Answer: A Vote an answer

In BIG-IP, a trunk is a Layer 2 network object used to aggregate multiple physical interfaces into a single logical link. This aggregation provides increased bandwidth and link resiliency, commonly in conjunction with LACP.
Key concepts that apply here:
* Trunks are managed under the /net trunk tmsh hierarchy
* Physical interfaces are added or removed using the modify command
* The create command is used only when defining a brand-new trunk, not when updating an existing one Because the trunk already exists and the goal is to add interfaces, the correct operation is:
tmsh modify /net trunk trunk_A interfaces add {1.3 1.4}
This command:
* Modifies the existing trunk named trunk_A
* Adds interfaces 1.3 and 1.4 to the trunk
* Immediately increases available bandwidth and redundancy
Why the Other Options Are Incorrect
* B uses the /sys hierarchy, which is not used for trunks
* C attempts to create a trunk that already exists
* D uses an incorrect hierarchy and an incorrect operation

by Jacob at Mar 19, 2026, 02:41 PM

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