ちなみに、CertShiken F5CAB2の一部をクラウドストレージからダウンロードできます：https://drive.google.com/open?id=1JBsBMbP58BzwuiR06K3AVFHi6STH8UIi
F5さまざまな顧客がさまざまなニーズを持っていることを考慮して、3つのバージョンのF5CAB2テストトレントを提供しています。PDFバージョン、PCテストエンジン、およびオンラインテストエンジンバージョンです。 ウェブ上のBIG-IP Administration Data Plane Concepts (F5CAB2)試験問題の最も有利なデモの1つは、Q＆Aの形式でPDFバージョンで書かれており、無料でダウンロードできます。 この種類のF5CAB2試験準備は印刷可能で、ダウンロードにすぐにアクセスできます。つまり、いつでもどこでも勉強できるので、移植性があります。 そして、F5CAB2トレーニングガイドのCertShiken無料デモを試してみると、すばらしい品質がわかります。
| Certification Vendor: | F5 |
|---|---|
| Exam Name: | BIG-IP Administration Data Plane Concepts |
| Exam Number: | F5CAB2 |
| Exam Format: | Multiple choice, Scenario-based |
| Exam Price: | $50 USD |
| Certificate Validity Period: | 3 years |
| Exam Duration: | 30 minutes |
| Available Languages: | English |
| Related Certifications: | F5 Certified Administrator, BIG-IP |
| Passing Score: | Not officially disclosed |
| Real Exam Qty: | 30 |
| Recommended Training: | BIG-IP Administration Training Courses |
| Exam Registration: | F5 Education Portal Pearson VUE Certiverse |
| Sample Questions: | F5 F5CAB2 Sample Questions |
| Exam Way: | Online proctored (Certiverse) / In-person (Pearson VUE centers) |
| Pre Condition: | No mandatory prerequisites; can take in any order with other F5CAB exams |
| Official Syllabus URL: | https://education.f5.com/exams/big-ip-administration-data-plane-concepts |
CertShikenはF5のF5CAB2認定試験に受かりたい各受験生に明確かつ顕著なソリューションを提供しました。当社はF5のF5CAB2認定試験の詳しい問題と解答を提供します。当社のIT専門家が最も経験と資格があるプロな人々で、我々が提供したテストの問題と解答は実際の認定試験と殆ど同じです。これは本当に素晴らしいことです。それにもっと大切なのは、CertShikenのサイトは世界的でF5CAB2試験トレーニングによっての試験合格率が一番高いです。
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質問 # 68
Refer to the exhibit.
During a planned upgrade to a BIG-IP HA pair running Active/Standby, an outage to application traffic is reported shortly after the Active unit is forced to Standby. Reverting the failover resolves the outage. What should the BIG-IP Administrator modify to avoid an outage during the next failover event? (Choose one answer)
正解：C
解説：
Comprehensive and Detailed Explanation (BIG-IP Administration - Data Plane Concepts):
In an Active/Standby BIG-IP design, application availability during failover depends on both units having equivalent data-plane connectivity for the networks that carry application traffic. Specifically:
VLANs are bound to specific interfaces (and optionally VLAN tags).
Floating self IPs / traffic groups move to the new Active device during failover.
For traffic to continue flowing after failover, the new Active device must have the same VLANs available on the correct interfaces that connect to the upstream/downstream networks.
What the symptom tells you:
Traffic works when Device A is Active
Traffic fails when Device B becomes Active
Failback immediately restores traffic
This pattern strongly indicates the Standby unit does not have the VLAN connected the same way (wrong physical interface assignment), so when it becomes Active, it owns the floating addresses but cannot actually pass traffic on the correct network segment.
Why Interface mismatch is the best match:
If the Active unit is already working, its interface mapping is correct.
The fix is to make the Standby unit's VLAN/interface assignment match the Active unit.
That corresponds to changing the Standby device interface to 1.1.
Why the Tag options are less likely here (given the choices and the exhibit intent):
Tag issues can also break failover traffic, but the question/options are clearly driving toward the classic HA requirement: consistent VLAN-to-interface mapping on both devices so the data plane remains functional after the traffic group moves.
Conclusion: To avoid an outage on the next failover, the BIG-IP Administrator must ensure the Standby device uses the same interface (1.1) for the relevant VLAN(s) that carry the application traffic, so when it becomes Active it can forward/receive traffic normally.
質問 # 69
An organization needs to deploy an HTTP application on a BIG-IP system. The requirements specify hardware acceleration to enhance performance, while HTTP optimization features are not required.
What type of virtual server and associated protocol profile should be used to meet these requirements? (Choose one answer)
正解：A
解説：
To select the correct virtual server type, an administrator must balance the need for L7 intelligence versus raw throughput and hardware offloading:
Performance (Layer 4) Virtual Server: This type is designed for maximum speed. It uses the fastL4 profile, which allows the BIG-IP system to leverage the ePVA (Embedded Packet Velocity Accelerator) hardware chip. When a Performance (L4) virtual server is used, the system processes packets at the network layer (L4) without looking into the application payload (L7). This fulfills the requirement for hardware acceleration and avoids the overhead of HTTP optimization features, which are not needed in this scenario.
Performance (HTTP) Virtual Server: While fast, this type uses the fasthttp profile to provide some L7 awareness and optimization (like header insertion or small-scale multiplexing). Since the requirement specifically states HTTP optimization is not required, the L4 variant is more efficient.
Standard Virtual Server: This is a full-proxy type. While it offers the most features (SSL offload, iRules, Compression), it processes traffic primarily in the TMOS software layer (or via high-level hardware assistance), which is "slower" than the pure hardware switching path of the Performance (L4) type.
Stateless Virtual Server: This is typically used for specific UDP/ICMP traffic where the system does not need to maintain a connection table. It is not appropriate for standard HTTP (TCP) applications requiring persistent sessions or stateful load balancing.
By choosing Performance (Layer 4) with the fastL4 profile, the organization ensures that the traffic is handled by the hardware acceleration chips, providing the lowest latency and highest throughput possible for their HTTP application.
質問 # 70
A BIG-IP Administrator configures remote authentication and needs to ensure that users can still log in even when the remote authentication server is unavailable. Which action should the BIG-IP Administrator take in the remote authentication configuration to meet this requirement? (Choose one answer)
正解：A
解説：
Although remote authentication (LDAP, RADIUS, TACACS+) is a control-plane / management-plane feature, it directly affects availability and resiliency of administrative access, which is a critical operational HA consideration.
How BIG-IP Remote Authentication Works:
* BIG-IP can authenticate administrators against:
* LDAP
* RADIUS
* TACACS+
* When remote authentication is enabled, BIG-IP by default relies on the remote server for user authentication
* If the remote authentication server becomes unreachable, administrators may be locked out unless fallback is configured Why "Fallback to Local" Is Required:
The Fallback to Local option allows BIG-IP to:
* Attempt authentication against the remote authentication server first
* If the remote server is unreachable or unavailable, fall back to:
* Local BIG-IP user accounts (admin, or other locally defined users)
This ensures:
* Continuous administrative access
* Safe recovery during:
* Network outages
* Authentication server failures
* Maintenance windows
This behavior is explicitly recommended as a best practice in BIG-IP administration to avoid loss of management access.
Why the Other Options Are Incorrect:
* A. Configure a second remote user directory
* Provides redundancy only if both directories are reachable
* Does not help if remote authentication as a whole is unavailable
* B. Configure a remote role group
* Maps remote users to BIG-IP roles
* Does not affect authentication availability
* D. Set partition access to "All"
* Controls authorization scope after login
* Has no impact on authentication success
Key Availability Concept Reinforced:
To maintain administrative access resiliency, BIG-IP administrators should always enable Fallback to Local when using remote authentication. This prevents lockouts and ensures access even during authentication infrastructure failures.
質問 # 71
Refer to the exhibit.
During a planned upgrade to a BIG-IP HA pair running Active/Standby, an outage to application traffic is reported shortly after the Active unit is forced to Standby. Reverting the failover resolves the outage. What should the BIG-IP Administrator modify to avoid an outage during the next failover event? (Choose one answer)
正解：C
解説：
In an Active/Standby BIG-IP design, application availability during failover depends on both units having equivalent data-plane connectivity for the networks that carry application traffic. Specifically:
VLANs are bound to specific interfaces (and optionally VLAN tags).
Floating self IPs / traffic groups move to the new Active device during failover.
For traffic to continue flowing after failover, the new Active device must have the same VLANs available on the correct interfaces that connect to the upstream/downstream networks.
What the symptom tells you:
Traffic works when Device A is Active
Traffic fails when Device B becomes Active
Failback immediately restores traffic
This pattern strongly indicates the Standby unit does not have the VLAN connected the same way (wrong physical interface assignment), so when it becomes Active, it owns the floating addresses but cannot actually pass traffic on the correct network segment.
Why Interface mismatch is the best match:
If the Active unit is already working, its interface mapping is correct.
The fix is to make the Standby unit's VLAN/interface assignment match the Active unit.
That corresponds to changing the Standby device interface to 1.1.
Why the Tag options are less likely here (given the choices and the exhibit intent):
Tag issues can also break failover traffic, but the question/options are clearly driving toward the classic HA requirement: consistent VLAN-to-interface mapping on both devices so the data plane remains functional after the traffic group moves.
Conclusion: To avoid an outage on the next failover, the BIG-IP Administrator must ensure the Standby device uses the same interface (1.1) for the relevant VLAN(s) that carry the application traffic, so when it becomes Active it can forward/receive traffic normally.
質問 # 72
The owner of a web application asks the BIG-IP Administrator to change the port that the BIG-IP device sends traffic to. This change must be made for each member in the server pool named app_pool for the Virtual Server named app_vs. In which area of the BIG-IP Configuration Utility should the BIG-IP Administrator make this change?
正解：C
解説：
In the BIG-IP object hierarchy, the destination port for backend traffic is defined at the Pool Member level. While a Virtual Server listens on a specific port, the Pool determines where that traffic is directed after the load balancing decision is made.
Pools and Pool Members: A pool is a collection of devices, often called pool members, to which the BIG-IP system passes traffic. Each pool member is defined by an IP address and a service port.
Port Translation: When an administrator needs to change the port the BIG-IP uses to communicate with backend servers, they must navigate to the specific Pool and modify the service port for each member within that pool.
Logical Separation:
Virtual Servers define the "front-end" port where clients connect.
Pools define the "back-end" port where the application resides.
Nodes represent the physical server's IP address and do not contain port-specific configuration.
質問 # 73
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F5CAB2試験関連赤本: https://www.certshiken.com/F5CAB2-shiken.html
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