Exam F5CAB1 Topic 4 Question 47 Discussion
Actual exam question for F5's F5CAB1 exam
Question #: 47
Topic #: 4
Question #: 47
Topic #: 4
For security reasons, a BIG-IP Administrator needs to specify allowable IP ranges for access to the Configuration Utility (WebUI).
The exhibit shows the User Administration section of the Configuration Utility.

The administrator could not find any setting that explicitly restricts access to the Configuration Utility.
Which one of the following is a reason for that?
The exhibit shows the User Administration section of the Configuration Utility.

The administrator could not find any setting that explicitly restricts access to the Configuration Utility.
Which one of the following is a reason for that?
Suggested Answer: A Vote an answer
The screenshot shown is from theUser Administrationsection of the BIG-IP GUI.
This section controls:
* Root and Admin passwords
* SSH Access
* SSH IP Allow settings
However,it does not contain any controls for restricting access to the WebUI (TMUI).
BIG-IP does not provide TMUI access restrictions from this part of the GUI.
Access to the web-based Configuration Utility is controlled by thehttpd allow list, configured through TMSH:
tmsh modify /sys httpd allow { <IP/subnet> }
This setting is not displayed in the User Administration panel, and in many BIG-IP versions, the httpd allow list isonly configurable from the CLI, not the GUI.
Therefore, the administrator cannot find the setting in the screen shown because:
* TMUI access restriction isnotlocated in this GUI section
* It must be configured usingtmshunder/sys httpd allow
This is whyOption Ais correct.
This section controls:
* Root and Admin passwords
* SSH Access
* SSH IP Allow settings
However,it does not contain any controls for restricting access to the WebUI (TMUI).
BIG-IP does not provide TMUI access restrictions from this part of the GUI.
Access to the web-based Configuration Utility is controlled by thehttpd allow list, configured through TMSH:
tmsh modify /sys httpd allow { <IP/subnet> }
This setting is not displayed in the User Administration panel, and in many BIG-IP versions, the httpd allow list isonly configurable from the CLI, not the GUI.
Therefore, the administrator cannot find the setting in the screen shown because:
* TMUI access restriction isnotlocated in this GUI section
* It must be configured usingtmshunder/sys httpd allow
This is whyOption Ais correct.
by Zebulon at May 05, 2026, 02:12 PM
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