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F5 F5CAB4 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Explain authentication methods: This section focuses on user management including creating
  • modifying users, configuring remote authentication providers, and implementing group-based access control.
Topic 2
  • Apply procedural concepts required to create, manage, and restore a UCS archive: This domain covers UCS backup and restore procedures, understanding backup use cases, proper storage practices, and UCS file contents including private keys.
Topic 3
  • Explain config sync: This section focuses on configuration synchronization procedures, identifying sync errors, determining sync necessity, checking sync status, and comparing configuration timestamps.
Topic 4
  • Given a scenario, determine device upgrade eligibility: This domain covers determining appropriate timing for software and platform upgrades and strategies to minimize downtime during upgrades.
Topic 5
  • Identify and report current device status: This domain covers monitoring BIG-IP operational status through LCD panels, dashboards, Network Map, GUI
  • TMSH commands, and checking high availability states.
Topic 6
  • List which log files could be used to find events and
  • or hardware issues: This section teaches identification of key log files (
  • var
  • log
  • ltm, secure, audit), understanding event severity levels, and interpreting log messages.
Topic 7
  • Identify configured system services: This domain covers verifying proper configuration of essential services including DNS, NTP, SNMP, and syslog.

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F5 BIG-IP Administration Control Plane Administration Sample Questions (Q71-Q76):

NEW QUESTION # 71
An LTM device has a virtual server mapped to www.f5.com. Users report that when they connect to /resources
/201.1.2h.l_l.com they are unable to receive content. What is the likely cause of the issue?

Answer: B

Explanation:
The Control Plane is responsible for ARP (Address Resolution Protocol) management for Virtual Addresses.
For a Virtual Server to be reachable, the BIG-IP must respond to ARP requests for that IP. If the "ARP" setting is disabled on the Virtual Address properties, upstream routers cannot resolve the MAC address of the BIG-IP, leading to connectivity failure even if the service itself is "Available."


NEW QUESTION # 72
A BIG-IP Administrator receives an RMA replacement for a failed F5 device. The Administrator tries to restore a UCS taken from the previous device, but the restore fails. The following error appears in the /var/log/ltm:
insufficient pool members. 01070608:3: License is not operational
(expired, digital signature does not match contents)
What should the BIG-IP Administrator do to avoid this error? (Choose one answer)

Answer: D

Explanation:
Comprehensive and Detailed Explanation From BIG-IP Administration Control Plane Administration documents:
When restoring a UCS file to replacement hardware (RMA device), the license from the original device is not valid on the new system. If the UCS restore attempts to load the old license, BIG-IP reports license errors such as "License is not operational", which can prevent traffic objects (including pools and virtual servers) from loading correctly.
To avoid this issue, F5 documentation recommends restoring the UCS without the license, using the following command:
tmsh load /sys ucs <ucs filename> no-license
This approach:
Restores all configuration objects (LTM, networking, certificates, keys, etc.) Excludes the invalid license tied to the old hardware Allows the administrator to activate a new license separately on the replacement device Why the other options are incorrect:
A . Remove the license information from the UCS archive
Not supported or recommended; UCS files should not be manually modified.
B . Revoke the license prior to restoring
License revocation does not prevent the UCS from attempting to load license data.
D . Reactivate the license on the new device using the manual activation method This must be done after restoring the UCS and does not prevent the restore failure itself.
Therefore, the correct and supported method to avoid this error is C.


NEW QUESTION # 73
A BIG-IP Administrator must determine if a Virtual Address is configured to fail over to the standby member of a device group. In which area of the Configuration Utility can this be confirmed?

Answer: B

Explanation:
To re27port the current status of high availability for specific traffic, an administrator must verify the Traffic Group association28. In the Configuration Utility, Virtual Server properties include the Virtual Address settings where the 'Traffic Group' is assigned29292929. If the Virtual Address is assigned to a floating traffic group (like traffic-group-1), it is configured to fail over to the standby member30303030.


NEW QUESTION # 74
Which TMSH command initiates a manual configuration synchronization to the specified device group? (Choose one answer)

Answer: B

Explanation:
Comprehensive and Detailed Explanation From BIG-IP Administration Control Plane Administration documents:
In a BIG-IP Device Service Cluster (DSC), manual configuration synchronization is performed using the ConfigSync framework. The supported and documented command to manually push the local configuration to a specific device group is:
tmsh run cm config-sync to-group <device_group>
This command:
Initiates a one-time manual ConfigSync
Pushes the local device's configuration to all members of the specified device group Is commonly used when auto-sync is disabled or when the administrator wants explicit control over synchronization timing Why the other options are incorrect:
A is not a valid TMSH command for ConfigSync.
B enables auto-sync but does not perform an immediate synchronization.
D is not a valid or supported TMSH command for device group configuration synchronization.
Therefore, the correct command to manually synchronize configuration to a device group is C.


NEW QUESTION # 75
The BIG-IP Administrator has modified an iRule on one device of an HA pair. The BIG-IP Administrator notices there is NO traffic on the BIG-IP device in which they are logged into. What should the BIG-IP Administrator do to verify if the iRule works correctly?

Answer: D

Explanation:
In an Active/Standby HA pair, application traffic only flows through the Active device. If an administrator makes a change on the Standby device (which has no traffic), they must synchronize the configuration to the Active device to test it. The procedural step is to log into the Active device and "pull" the configuration from the Standby device (or push from Standby) so the Active device can process traffic using the new iRule


NEW QUESTION # 76
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