F5CAB1 Install, Initial Configuration, and Upgrade Practice Question
When configuring a new BIG-IP VE, which TWO network settings are required to ensure the device can communicate with external licensing servers?
⚠ Common exam trap
Candidates often select data-plane network settings, such as client-facing VLANs or pool member routes, incorrectly assuming external licensing requires general traffic routing.
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
✓
A valid default gateway in the management network.
Network connectivity is the prerequisite for all licensing. BIG-IP Virtual Editions must reach the F5 activation servers to validate their registration keys. Without correct routing and DNS, the license state will remain 'unlicensed', preventing the activation of any modules. This is a common failure point for new VE deployments, and mastering these requirements is essential for ensuring a smooth, successful provisioning of virtual infrastructure.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
A valid default gateway in the management network.
Why this is correct
The default gateway is required for the BIG-IP to communicate outside its local subnet to reach the internet. Without this path, the device cannot reach the F5 activation servers, causing the license request to time out and preventing the initial setup from completing.
- ✗
A static IP address on the data plane.
Why it's wrong here
Data plane interfaces are used for traffic load balancing, not for management or licensing communication. Licensing is strictly a management-plane activity. Configuring data plane interfaces is secondary and has no impact on the ability of the BIG-IP to contact F5 for license activation.
- ✓
Configured DNS servers that can resolve f5.com.
Why this is correct
BIG-IP contacts licensing servers using fully qualified domain names. If the system cannot resolve these names via DNS, the activation request will fail immediately. Proper DNS configuration ensures the BIG-IP can reach the correct activation endpoints required for a successful license check.
- ✗
An SNMP community string.
Why it's wrong here
SNMP is used for external monitoring of the device's health. It is not involved in the licensing process. Setting an SNMP community string will not help the device reach the F5 servers or resolve domains, making it irrelevant to the specific task of activating the license.
- ✗
A secondary management interface.
Why it's wrong here
The BIG-IP management plane uses a single primary management IP for all administrative tasks. A secondary interface is not required for licensing or basic configuration. Adding unneeded interfaces increases complexity and the potential for routing conflicts within the management network.
About these practice questions
Courseiva writes every F5CAB1 question from scratch — 80 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official F5 exam blueprint
This F5CAB1 practice question is part of Courseiva's free F5 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 F5CAB1 exam.