F5CAB1 Install, Initial Configuration, and Upgrade Practice Question
An administrator has just completed the initial configuration of a BIG-IP appliance and needs to verify that the management interface is reachable from the corporate network. The administrator is on a workstation that can ping the management IP. Which command should the administrator run on the BIG-IP to confirm that the default gateway is correctly configured?
⚠ Common exam trap
Test-takers frequently confuse the command to display the management IP with the one that shows the default gateway, or assuming that global settings include the gateway.
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
✓
tmsh list sys management-route
To verify the default gateway on the management interface, the administrator should list the management routes. The command 'tmsh list sys management-route' displays the configured routes, including the default route and its gateway. This confirms that the gateway is set correctly. Other commands like showing the management IP or global settings do not provide the gateway information. Checking interface status is unrelated to gateway configuration.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
tmsh show net interface
Why it's wrong here
This command shows the status of network interfaces, including speed, duplex, and MAC address. It does not display IP addresses or default gateways. It is used for physical interface troubleshooting, not for verifying management IP configuration. Therefore, it is not the correct choice.
- ✓
tmsh list sys management-route
Why this is correct
This command lists the management routes, including the default gateway. It shows the destination network (default) and the gateway IP address. By running this, the administrator can confirm that the default gateway is set correctly. This is the appropriate command to verify the gateway configuration on the management interface.
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tmsh show sys management-ip
Why it's wrong here
This command displays the management IP address and netmask, but it does not show the default gateway. To verify the default gateway, you need to look at the management route configuration. Therefore, this command alone does not confirm the gateway setting. It is useful for verifying the IP, but not the gateway.
- ✗
tmsh show sys global-settings
Why it's wrong here
This command displays global system settings, such as the management DHCP setting and other global parameters. It does not show the default gateway. While it can indicate whether DHCP is enabled or disabled, it does not provide the gateway IP address. Thus, it is not the correct command to verify the default gateway.
About these practice questions
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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.