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F5 F5CAB4 認定試験の出題範囲：

トピック	出題範囲
トピック 1	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.
トピック 2	Explain authentication methods: This section focuses on user management including creating modifying users, configuring remote authentication providers, and implementing group-based access control.
トピック 3	Given a scenario, interpret Service status: This section teaches interpreting service states, analyzing netstat output, and determining whether services are listening on specific ports.
トピック 4	Apply procedural concepts required to manage the state of a high availability pair: This domain covers controlling and monitoring failover states in high availability pairs, including forcing standby offline modes, reporting failover status, and verifying device trust.
トピック 5	Explain config sync: This section focuses on configuration synchronization procedures, identifying sync errors, determining sync necessity, checking sync status, and comparing configuration timestamps.
トピック 6	Identify management connectivity configurations: This section focuses on understanding management access configurations, including management IP addresses, port lockdown settings, remote connectivity verification, and troubleshooting access issues.
トピック 7	Identify configured system services: This domain covers verifying proper configuration of essential services including DNS, NTP, SNMP, and syslog.
トピック 8	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.
トピック 9	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.

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F5 BIG-IP Administration Control Plane Administration 認定 F5CAB4 試験問題 (Q27-Q32):

質問 # 27
What can the BIG-IP Administrator do when restoring BIG-IP configuration files with a UCS archive? (Choose two answers)

A. The BIG-IP Administrator can restore a UCS archive on a BIG-IP system on a different platform.
B. The BIG-IP Administrator can restore a UCS archive on a BIG-IP system running a later software version than the version of software the UCS archive was created on.
C. The BIG-IP Administrator can only restore the UCS archive to the same system from which it was saved.
D. The BIG-IP Administrator can only restore a UCS archive on a BIG-IP system running the same version.

正解：A、B

解説：
The User Configuration Set (UCS) is a flexible tool designed by the Control Plane to handle various lifecycle management scenarios, including upgrades and hardware migrations.
Version Compatibility (Option B): TMOS is designed to be backward compatible. The Control Plane can ingest a UCS file created on an older version of software and automatically upgrade the configuration objects to match the current, later version during the restore process.
Platform Portability (Option C): While a UCS archive contains platform-specific information, the BIG- IP system allows for "platform-independent" restores. This is a vital procedural concept for migrating from one hardware model to another or from physical hardware to a Virtual Edition (VE).
Management of State: When restoring to a different platform or a later version, the administrator often uses specific flags (such as no-license or platform-migrate in later versions) to ensure that only the portable configuration data is applied while preserving the new platform's unique identifiers.

質問 # 28
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?

A. Device Management > Traffic Groups
B. Local Traffic > Virtual Servers
C. Device Management > Devices
D. Device Management > Overview

正解：B

解説：
Comprehensive and Detailed Explanation From BIG-IP Administration Control Plane Administration documents: 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.

質問 # 29
What does MCP (Master Control Program) manage?

A. SSL certificates
B. Routing tables
C. Logs only
D. Configuration database

正解：D

解説：
MCP maintains and synchronizes the BIG-IP configuration database.

質問 # 30
A BIG-IP Administrator makes a configuration change to a Virtual Server on the Standby device of an HA pair. The HA pair is currently configured with Auto-Sync Enabled. What effect will the change have on the HA pair configuration?

A. The change will be undone next time a configuration change is made on the Active device.
B. The change will be propagated next time a configuration change is made on the Active device.
C. The change will be undone when Auto-Sync propagates the config to the HA pair.
D. The change will take effect when Auto-Sync propagates the config to the HA pair.

正解：D

解説：
Comprehensive and Detailed Explanation From BIG-IP Administratio24n Control Plane Administration documents: TMOS Device Service Cluste25ring (DSC) allows for configuration changes to be made on any device within a synchronization group. If Auto-Sync is enabled, the Control Plane detects the change on the Standby unit and automatically propagates (pushes) that updated configuration to the other members of the HA pair

質問 # 31
When looking at this BIG-IP prompt:
root@virtual-bigip1] Peer Time Out of Sync
What does the message indicate? (Choose one answer)

A. That the peer BIG-IP is unreachable for the device group
B. That one of the NTP sources has a skewed clock
C. That the local time is correct, but the remote time is incorrect
D. That there was a time synchronization issue between the BIG-IP device and its peer

正解：D

解説：
On BIG-IP systems that participate in a Device Service Cluster (DSC), each device compares the remote device's system time to its own system time. If the difference is outside the ConfigSync time threshold (commonly referenced as 3 seconds by default), BIG-IP updates the shell prompt to show "Peer Time Out of Sync", and ConfigSync operations may fail until time is corrected (typically by fixing NTP reachability/configuration, or in some cases adjusting the threshold).

質問 # 32
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