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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
  • 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 2
  • 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 3
  • 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.
トピック 4
  • 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 5
  • 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.
トピック 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.
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
  • 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 9
  • 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.

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F5 BIG-IP Administration Control Plane Administration 認定 F5CAB4 試験問題 (Q22-Q27):

質問 # 22
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 # 23
A BIG-IP Administrator needs to export system configuration for migration purposes. Which file type should be used?

正解：A

解説：
In F5 TMOS, a User Configuration Set (UCS) is the standard archive format used for backing up and migrating a complete system configuration .
* Composition: A UCS file contains all necessary configuration data, including system-specific files, license information, SSL certificates, private keys, and local user accounts.
* Procedural Use: When migrating to new hardware or performing an RMA replacement, the UCS file is the primary tool used to restore the entire Control Plane state to the new device.
* Restoration: It can be managed through the Configuration Utility under System > Archives or via the CLI using the tmsh load /sys ucs command The correct location to restrict management access to specific subnets is D. System > Platform1.


質問 # 24
Utility, where can the BIG-IP Administrator check system metrics such as CPU and memory usage?

正解：C

解説：
The Statistics Dashboard is the primary graphical interface used by administrators to monitor the real-time performance and health of the BIG-IP system.
System-Wide Overview: Navigating to Statistics > Dashboard provides a centralized view of critical system-level metrics, including global CPU utilization (across all TMM instances and the Linux host) and total memory usage.
Performance Tracking: In addition to CPU and memory, the dashboard displays other vital statistics such as total active connections, throughput (bits/packets per second), SSL transactions per second (TPS), and compression efficiency.
Operational Health: Monitoring these metrics from the dashboard allows the administrator to quickly identify performance trends or resource exhaustion that could impact the Control Plane or Data Plane stability.


質問 # 25
A BIG-IP device sends out the following SNMP trap:
big-ipo.f5.com - bigipExternalLinkChange Link: 1.0 is DOWN.
Where in the BIG-IP Configuration utility should the BIG-IP Administrator verify the current status of Link 1.0?

正解：A

解説：
Monitoring the physical status of the device is critical for reporting device health. In F5 nomenclature, "1.0", "1.1", etc., represent physical hardware interfaces. To verify if a physical link is up or down as reported by the Control Plane's SNMP agent, the administrator must check the Interface List located under Network > Interfaces


質問 # 26
When looking at this BIG-IP prompt: root@virtual-bigip1] Peer Time Out of Sync What does the message indicate? (Choose one answer)

正解：C

解説：
Comprehensive and Detailed Explanation From BIG-IP Administration Control Plane Administration documents:
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). (cdn.studio.f5.com) This message is specifically about time drift between peers in the trust domain/DSC-not basic reachability (so B is not what it means), and it does not prove which side is "correct" (so C is too specific). It also doesn't directly mean an NTP source is "skewed" (A can be a cause, but the prompt message itself indicates the peer-to-peer time mismatch condition). (cdn.studio.f5.com)


質問 # 27
......

F5CAB4試験問題は高品質であり、試験に簡単かつ正常に合格するのに役立ちます。 F5CAB4試験の質問により、99％の合格率と高いヒット率が得られるため、F5試験に合格できないことを心配する必要はありません。 当社のF5CAB4試験トレントは、専門家によって編集され、経験豊富な専門家によって承認され、理論と実践の開発状況に応じて更新されます。 当社のF5CAB4ガイドトレントは、試験をシミュレートしてタイミング機能を向上させることができます。

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