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This page has 6 Refer to the Exhibit Practice Questions scenario questions for the F5CAB1 exam, each with detailed explanations and wrong-answer analysis.

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Read the full scenario before looking at the answer options. Identify the constraint or requirement in the scenario, then eliminate options that are generally true but wrong for this specific case. Scenario questions reward careful reading over pattern matching.

F5 Certified Administrator: Install, Initial Configuration, and Upgrade Practice Questions

Scenario guide

How to approach refer to the exhibit practice questions

Practise exhibit-style questions that ask you to read a topology, table, command output or diagram before choosing the best answer.

Quick answer

Exhibit-style questions test whether you can read a topology, command output, diagram or table before choosing the best answer.

How to extract the relevant detail from an exhibit.

How topology, command output or routing information affects the answer.

How to avoid answering from memory before reading the evidence.

How to map the exhibit back to the exam objective.

Practice set

Practice scenarios

Question 1mediummultiple choice

Full question →

Refer to the exhibit. An administrator wants to upgrade the system to version 16.1.2. Based on the output, what should the administrator do next?

Exhibit

tmsh show sys software status
--------------------------------------------------
Sys::Software Status
Volume  Product  Version     Build  Active  Status
--------------------------------------------------
HD1.1    BIG-IP   15.1.0    0.0.12    yes  complete
HD1.2    BIG-IP   16.1.2    0.0.10     no  complete

A
Run the install command for 16.1.2 again.
Why it fails: The status column shows 'complete', indicating the installation is finished. Running the install command again is redundant and consumes system resources unnecessarily. The software is already staged and ready to be booted, so the administrator should proceed directly to changing the boot partition.
B
Reboot the system to switch to HD1.2.
Since 16.1.2 is already installed and marked as 'complete' on HD1.2, the final step is to instruct the system to boot from that volume. Upon reboot, the BIG-IP will load the configuration into the new software version, completing the transition from the old version.
C
Delete HD1.1 to free up space.
Why it fails: Deleting the currently active partition while the system is running is not possible and would lead to a system crash. The current version should be kept as a known-good backup until the new version is verified as stable after the upgrade and subsequent testing.
D
Create a new volume HD1.3.
Why it fails: Creating a new volume is unnecessary because HD1.2 is already prepared with the correct software version. Adding more volumes consumes disk space that could be used for other critical functions like log storage or packet capture files, and it does not help in finalizing the current upgrade.

Full breakdown with real-world context →

Question 2mediummultiple choice

Full question →

Refer to the exhibit. An administrator receives this error when attempting to install a new software version. What is the most appropriate remediation step?

Exhibit

Error: [Errno 28] No space left on device
/usr/bin/tmsh install sys software image BigIP-15.1.0.iso volume HD1.2

A
Expand the virtual disk in the hypervisor.
Why it fails: Hypervisor-level disk expansion does not automatically resize the existing LVM partitions within the BIG-IP file system. F5 partitions are pre-defined during installation, and simply increasing the virtual disk size will not resolve the specific 'No space left' error on an existing boot volume partition.
B
Delete an old, unused software volume.
BIG-IP systems maintain multiple boot locations to facilitate seamless upgrades. When a volume is full, the system cannot extract the new image files. Removing an obsolete or unused version frees up the necessary space for the new installation without requiring a full system re-image of the unit.
C
Run 'touch' on the partition to clear logs.
Why it fails: Clearing log files does not increase the space available for software volumes, which are separate partitions defined at installation. Software volumes are isolated from log directories, and the 'touch' command is irrelevant to managing disk space within the context of software image installation and partition management.
D
Perform a 'factory reset' of the device.
Why it fails: A factory reset is an extreme measure that destroys the current configuration and data. It is never the correct solution for a simple space limitation issue. Administering an F5 device requires surgical management of resources; destroying the configuration to gain space is an inefficient and potentially disruptive administrative practice.

Full breakdown with real-world context →

Question 3hardmultiple choice

Full question →

Refer to the exhibit. An administrator receives this error after a fresh installation and reboot. What must be done to resolve this?

Exhibit

Config Error: 01070081:3: The license is not active. Please activate the license.

A
Reboot the device into the previous boot slot.
Why it fails: Rebooting into the old slot does not solve the licensing issue on the new version. The new installation has a different license state that must be addressed. Returning to the old partition is a rollback, not a resolution, and will not allow the administrator to move forward with the upgrade.
B
Perform a manual license re-activation.
Re-activating the license forces the system to communicate with the F5 license server to download the correct authorization file for the newly installed software version. This process clears the license error and allows the mcpd daemon to successfully load the configuration and enable the appropriate features on the appliance.
C
Delete the current configuration files.
Why it fails: Deleting configuration files will not fix a licensing error. The system's inability to start is tied to the licensing status, not the presence of configuration files. Removing these files would simply leave the system in an unconfigured state while still requiring a valid license to become operational and useful.
D
Check the physical license dongle on the chassis.
Why it fails: Modern BIG-IP appliances use electronic licensing, not physical dongles. Checking for a hardware dongle is irrelevant to the current licensing mechanism. The issue is purely software-based, related to the registration key and the activation state of the system, which must be managed through the configuration utility or CLI.

Full breakdown with real-world context →

Question 4hardmultiple choice

Full question →

Refer to the exhibit. An administrator reviews the system status after an upgrade attempt on a high-availability BIG-IP pair. The command output indicates a critical service failure. Which immediate diagnostic step should the administrator take?

Exhibit

Sys::Tmstat
  Availability  : green
  State         : run
  Reason        : The BIG-IP system operational status is active
  Availability  : red
  Reason        : Critical service tmm is suppressed
SSM::Device
end

A
Reboot the active device immediately into the previous boot location and initiate a configuration sync across the high-availability peer.
Why it fails: Rebooting into the previous boot location discards the failed upgrade's state before the critical service failure is diagnosed, and syncing propagates that state to the peer. It is tempting because boot-location rollback is a valid recovery path, but it is a remediation step, not the immediate diagnostic step requested.
B
Access the command line interface to examine /var/log/ltm for initialization errors and verify license validity for the newly installed software version.
Reviewing the Local Traffic Manager log provides granular details regarding why TMM failed to start. Verifying license validity is equally critical because upgraded software versions often enforce stricter support dates or require updated feature activation keys.
C
Modify the BIG-IP platform properties file to disable hardware acceleration and restart the master control program daemon using bigstart restart.
Why it fails: Disabling hardware acceleration is rarely a valid troubleshooting step for a suppressed TMM service and can severely degrade forwarding performance. Restarting mcpd without addressing underlying syntax or licensing issues will likely result in another failure.
D
Run a complete factory default reset via the command line and restore the configuration from a UCS archive generated prior to the upgrade.
Why it fails: A factory reset destroys the running configuration and any evidence needed to diagnose the failed service, so it is not an immediate diagnostic step. It is tempting because a UCS restore is a genuine recovery method after a failed upgrade, but only once diagnosis confirms the configuration is unrecoverable.

Full breakdown with real-world context →

Question 5hardmultiple choice

Full question →

Refer to the exhibit. An administrator receives this error while running a TMSH script to provision modules. What is the likely cause?

Exhibit

Error: 01070265:3: The requested value for the 'provision' level is not valid.

A
Insufficient physical memory is installed.
Why it fails: While memory limits affect provisioning, the error message specifically points to an invalid value for the provision level. If memory were the issue, the error would explicitly state that the system cannot allocate the requested resources, rather than flagging the level value as syntactically invalid or unsupported by the configuration.
B
The provisioning level is set to an unsupported value.
This error indicates that the administrator entered a level name that does not match the allowed options for the specific module. For instance, attempting to set a level that doesn't exist for that module will trigger this error. Correcting the script to use valid values will allow the provisioning to proceed.
C
The license does not support this module.
Why it fails: If the module were not licensed, the system would typically return a license-related error rather than an invalid value error. The 'invalid value' message suggests that the command syntax itself is the problem, specifically regarding the parameter provided for the provisioning level, rather than a failure in the licensing entitlement verification.
D
The management interface is down.
Why it fails: The management interface status has no correlation with the ability to execute TMSH provisioning commands. If the management interface were down, the administrator would not be able to send the command to the system in the first place, making this an unlikely cause for a specific configuration validation error.

Full breakdown with real-world context →

Question 6hardmultiple choice

Full question →

Refer to the exhibit. An administrator receives this error while installing a new version. What is the recommended way to resolve this space issue?

Exhibit

Error: The installation failed because the current partition does not have enough disk space for the new image.

A
Delete old, unused software images in the boot locations.
BIG-IP stores multiple software versions as images on the disk. Deleting old, unused images is the standard, safest way to reclaim space for a new installation. This allows the administrator to maintain the current version while having enough capacity to stage the new, larger software update.
B
Reformat the hard drive.
Why it fails: Reformatting the hard drive is a destructive action that will wipe the configuration, license, and all data. This is only done as a last resort in extreme cases and is not a standard maintenance procedure for resolving space issues during a software upgrade.
C
Increase the disk partition size via CLI.
Why it fails: BIG-IP disk partitioning is defined during initial installation and cannot be resized on the fly. Attempting to force a resize through low-level Linux tools can corrupt the file system and render the BIG-IP inoperable, requiring a full re-image of the hardware.
D
Disable the logging service.
Why it fails: While this might free up some disk space temporarily, it is not a sustainable solution and is a poor practice that compromises system auditability. The logs are stored in separate partitions from the software images; therefore, clearing them will not solve the space issue for the installation.

Full breakdown with real-world context →

Refer to the Exhibit Practice Questions

How to approach refer to the exhibit practice questions

Quick answer

Related F5CAB1 topic practice pages

Install, Initial Configuration, and Upgrade practice questions

F5CAB1 fundamentals practice questions

F5CAB1 scenario practice questions

F5CAB1 troubleshooting practice questions

Practice scenarios

Refer to the exhibit. An administrator wants to upgrade the system to version 16.1.2. Based on the output, what should the administrator do next?

Exhibit

Refer to the exhibit. An administrator receives this error when attempting to install a new software version. What is the most appropriate remediation step?

Exhibit

Refer to the exhibit. An administrator receives this error after a fresh installation and reboot. What must be done to resolve this?

Exhibit

Refer to the exhibit. An administrator reviews the system status after an upgrade attempt on a high-availability BIG-IP pair. The command output indicates a critical service failure. Which immediate diagnostic step should the administrator take?

Exhibit

Refer to the exhibit. An administrator receives this error while running a TMSH script to provision modules. What is the likely cause?

Exhibit

Refer to the exhibit. An administrator receives this error while installing a new version. What is the recommended way to resolve this space issue?

Exhibit