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| Section | Objectives |
|---|---|
| Topic 1: System Administration and Operations | - Configuration management
|
| Topic 2: Maintenance and Lifecycle Operations | - Upgrades and updates
|
| Topic 3: Control Plane Fundamentals | - System management concepts
|
| Topic 4: Monitoring and Troubleshooting Basics | - Logging and diagnostics
|
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質問 # 57
Which method is recommended for creating a new user from the CLI? (Choose one answer)
正解：D
解説：
Comprehensive and Detailed Explanation From BIG-IP Administration Control Plane Administration documents:
The recommended and supported method for creating BIG-IP users from the CLI is through TMSH, using the authentication subsystem.
tmsh create auth user <username> prompt-for-password:
Properly creates the user within BIG-IP's AAA/authentication framework
Encrypts the password securely
Ensures the user is stored and managed correctly in the BIG-IP configuration database Is fully supported and documented Why the other options are incorrect:
B is unsafe and unsupported because editing bigip.conf directly and storing clear-text passwords violates security and configuration management best practices.
C (f5adduser / f5passwd) is deprecated and not recommended for modern BIG-IP versions.
D creates a Linux system user only, not a BIG-IP administrative user, and will not allow access to the Configuration Utility or TMSH roles.
質問 # 58
A BIG-IP Administrator needs to update the list of configured NTP servers. In which area of the Configuration Utility should the BIG-IP Administrator perform this update?
正解：C
解説：
NTP (Network Time Protocol) is vital for management connectivity and HA state synchronization. Correct time is required for log timestamping and device trust group communication46. To manage these settings, the administrator navigates to System > Configuration, where general system-level services like NTP and DNS are defined to ensure the Control Plane remains synchronized with the network environment.
質問 # 59
Which command saves the running configuration to disk?
正解：C
解説：
This command saves the active configuration managed by MCP to persistent storage.
質問 # 60
One of the two members of a device group has been decommissioned. The BIG-IP Administrator tries to delete the device group, but is unsuccessful.
Prior to removing the device group, which action should be performed? (Choose one answer)
正解：C
解説：
A BIG-IP device group cannot be deleted if it still contains device members, even if one of those devices has already been decommissioned or is unreachable. Before deleting the device group, the administrator must explicitly remove the decommissioned device from the device group configuration.
Once the removed or unreachable device is deleted from the device group membership, the BIG-IP system allows the remaining administrator to successfully delete the device group.
Why the other options are incorrect:
* A. Remove all members from the device groupThis is not required; the key requirement is removing the decommissioned device, not all members.
* B. Make sure all members are in syncSynchronization status does not prevent device group deletion.
* D. Disable the device groupDevice groups cannot be disabled; they must be modified or deleted.
Therefore, the correct prerequisite action is to remove the decommissioned device from the device group, making C the correct answer.
質問 # 61
The BIG-IP appliance fails to boot. The BIG-IP Administrator needs to run the End User Diagnostics (EUD) utility to collect data to send to F5 Support. Where can the BIG-IP Administrator access this utility?
正解：B
解説：
Comprehensive and Detailed Explanation From BIG-IP Administration Control Plane Administration documents: The EUD is a 33hardware-level diagnostic tool that runs outside of the TMOS operating system. Because it is used when the system cannot boot or is in a pre-boot state, it cannot be accessed via the GUI or management network. The administrator must connect physically via the serial Console Port to interact with the boot menu and initiate the hardware tests.
質問 # 62
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誰もが異なる学習習慣を持っているため、F5CAB4試験シミュレーションでは、PDFバージョン、ソフトウェアバージョン、およびAPPバージョンのさまざまなシステムバージョンが提供されます。特定の状況に基づいて、最適なバージョンを選択するか、複数のバージョンを同時に使用できます。結局のところ、F5CAB4準備質問の各バージョンには独自の利点があります。非常に忙しい場合は、F5CAB4学習資料を使用するために非常に断片化された時間の一部しか使用できません。また、F5CAB4試験の各質問は、確実に試験に合格するのに役立ちます。
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