F5CAB3復習対策、F5CAB3練習問題

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F5 F5CAB3 認定試験の出題範囲：

トピック出題範囲
トピック 1
  • プールの変更と管理に必要な手続き的概念を適用する：このドメインでは、ヘルスモニター、負荷分散方法、優先度グループ、サービスポート構成など、サーバープールの管理について説明します。
トピック 2
  • 仮想サーバーの変更と管理に必要な手続き的概念を適用する：この領域では、永続性、暗号化、プロトコルプロファイルの適用、iAppオブジェクトの識別、iRulesの報告、プール構成の表示など、仮想サーバーの管理について扱います。

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有難いF5 F5CAB3復習対策 & 合格スムーズF5CAB3練習問題 | 大人気F5CAB3問題サンプル

被験者は定期的に計画を立て、自分の状況に応じて目標を設定し、研究を監視および評価することにより、学習者のプロフィールを充実させる必要があります。 F5CAB3試験の準備に役立つからです。試験に合格して関連する試験を受けるには、適切な学習プログラムを設定する必要があります。当社からF5CAB3テストガイドを購入し、それを真剣に検討すると、最短時間でF5CAB3試験に合格するのに役立つ適切な学習プランが得られると考えています。

F5 BIG-IP Administration Data Plane Configuration 認定 F5CAB3 試験問題 (Q64-Q69):

質問 # 64
An organization reports slow performance accessing an Intranet website. All employees use a single proxy IP.
What should the BIG-IP Administrator do?

正解：D

解説：
When many users share one source IP, source-address persistence fails. Cookie persistence uniquely identifies clients at Layer 7.


質問 # 65
A BIG-IP Administrator adds new pool members into an existing, highly utilized pool. Soon after, there are reports that the application is failing to load for some users.
What pool-level setting should the BIG-IP Administrator check?

正解：B

解説：
Slow Ramp Time prevents new pool members from receiving a full share of traffic immediately, allowing applications to warm up gradually.


質問 # 66
Refer to the exhibit.


A BIG-IP Administrator configures a new VLAN on an HA pair of devices that does NOT yet have any traffic. This action causes the assigned traffic group to fail over to the standby device. Which VLAN setting should be changed to prevent this issue?

正解：B

解説：
The exhibit shows the advanced configuration of a VLAN where the Fail-safe option is checked. VLAN Fail- safe is a high-availability feature used to monitor network connectivity on a specific VLAN. When enabled, the BIG-IP system monitors the VLAN for network traffic. If the system does not detect any "useful" traffic on the VLAN within the specified Fail-safe Timeout (which is 90 seconds in the exhibit), it attempts to generate traffic by pinging the default gateway or other devices. If it still detects no traffic, the BIG-IP concludes that the VLAN is unreachable or the network interface has failed, and it triggers a "Fail-safe Action"-in this case, "Reboot" or a failover to the peer device in the HA group.
Because the administrator has just created a new VLAN that "does NOT yet have any traffic," the Fail-safe mechanism triggers immediately after the 90-second timeout period. Since no devices are yet communicating on this VLAN, the BIG-IP incorrectly assumes there is a hardware or cabling failure and forces a failover to ensure the standby device (which might have better connectivity) takes over. To prevent this unwanted failover, the administrator should uncheck the Fail-safe box for that specific VLAN until the VLAN is fully populated with active nodes and regular traffic. Once the application is live and traffic is flowing, Fail-safe can be re-enabled to provide an additional layer of redundancy. Auto Last Hop (Option A) and Source Check (Option B) are routing and security features that do not trigger HA failover events.


質問 # 67
A node is a member of multiple pools hosting different web applications. If one application fails, only that pool member should be marked down.
What should be configured?

正解：A

解説：
Application-specific health checks must validate application responses, which requires HTTP monitors with custom send/receive strings.


質問 # 68
A set of servers is used for an FTP application as well as an HTTP website via separate BIG-IP Pools. The server support team reports that some servers are receiving a lot more traffic than others. Which Load Balancing Method should the BIG-IP Administrator apply to even out the connection count?

正解：A

解説：
Similar to the logic required for managing multi-service backend environments, the issue described-where servers hosting multiple protocols like FTP and HTTP are experiencing uneven distribution-stems from the BIG-IP's default behavior of treating each pool independently. If the administrator uses a member-based load balancing method, the BIG-IP distributes HTTP traffic regardless of how much FTP traffic that same physical server is currently processing.
To resolve this, the administrator must utilize the Least Connections (Node) method. By switching both the HTTP and FTP pools to this algorithm, the BIG-IP begins to make load balancing decisions based on the total combined connection count for the IP address of each server. When a new HTTP request arrives, the BIG-IP checks which server has the fewest total connections (including existing FTP sessions). This prevents a server that is already busy with long-lived FTP transfers from being overwhelmed by a sudden burst of HTTP requests.
Ratio methods (Options A and C) are static and rely on the administrator manually assigning weights to servers based on their perceived capacity; they do not adapt to real-time fluctuations in traffic volume across different pools. Least Connections (Member) (Option B) remains blind to the "cross-pool" traffic on the same hardware. Only the Node-based Least Connections approach provides the global visibility necessary to "even out" the total resource utilization across servers supporting multiple distinct applications.


質問 # 69
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