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早急にF5CAB2認定試験に参加し、特定の分野での仕事に適格であることを証明する証明書を取得する必要があります。 F5CAB2学習教材を購入すると、ほとんど問題なくテストに合格します。 F5CAB2の学習教材は高い合格率とヒット率を高めるため、テストにあまり合格しなくても心配する必要はありません。購入前に無料トライアルを提供しています。 F5CAB2練習エンジンのメリットと機能をさらに理解するには、製品の紹介を詳細にご覧ください。
| Certification Vendor: | F5 |
|---|---|
| Exam Name: | BIG-IP Administration Data Plane Concepts |
| Exam Number: | F5CAB2 |
| Related Certifications: | F5 Certified Administrator, BIG-IP |
| Available Languages: | English |
| Exam Duration: | 30 minutes |
| Exam Price: | $50 USD |
| Real Exam Qty: | 30 |
| Passing Score: | Not officially disclosed |
| Exam Format: | Multiple choice, Scenario-based |
| Certificate Validity Period: | 3 years |
| Recommended Training: | BIG-IP Administration Training Courses |
| Exam Registration: | Pearson VUE F5 Education Portal 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 |
なぜ我々社は試験に合格しないなら、全額での返金を承諾するのは大勢の客様が弊社のF5 F5CAB2問題集を使用して試験に合格するのは我々に自信を与えるからです。F5 F5CAB2試験はIT業界での人にとって、とても重要な能力証明である一方で、大変難しいことです。それで、弊社の専門家たちは多くの時間と精力を尽くし、F5 F5CAB2試験資料を研究開発されます。
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質問 # 73
A BIG-IP system receives UDP traffic from a specific source. The administrator wants the traffic to be forwarded, not dropped or rejected. Which virtual server type should be used? (Choose one answer)
正解:A
解説:
BIG-IP virtual server types define how traffic is handled at the data plane when it matches a virtual server's destination address and service port.
According to BIG-IP Administration Data Plane Concepts:
* Standard virtual server
* The default and most commonly used type
* Accepts client connections and forwards traffic to pool members
* Supports both TCP and UDP traffic
* Allows full use of profiles (UDP, FastL4, persistence, etc.) and iRules
* Required when the goal is to process and pass traffic through BIG-IP
* Drop virtual server
* Silently discards matching traffic
* No response is sent to the client
* Reject virtual server
* Actively rejects traffic by sending an error response
* For UDP, BIG-IP may send an ICMP unreachable message
* Block virtual server
* Used to block traffic at the virtual server level
* Traffic is neither forwarded nor processed by pools
In this scenario:
* The administrator explicitly wants the UDP traffic to be forwarded
* Only a Standard virtual server forwards traffic to a pool or next-hop destination Why the Other Options Are Incorrect:
* A. Drop - Traffic is silently discarded
* B. Reject - Traffic is actively rejected
* C. Block - Traffic is blocked and not forwarded
Key Data Plane Concept Reinforced:
When traffic must be accepted and forwarded-regardless of whether it is TCP or UDP-the BIG-IP administrator must use a Standard virtual server, which is the only virtual server type designed for normal application traffic processing.
質問 # 74
Refer to the exhibit.
Load Balancing Method: Round Robin
Priority Group Activation: Less than 2 Available Members
Which two pool members should be chosen for a new connection? (Choose two.)
正解:A、D
解説:
BIG-IP Priority Group Activation causes members in the highest-numbered priority group to receive traffic first. F5 defines the activation value as the minimum number of available members required before traffic can remain confined to the higher-priority group. If availability falls below that threshold, the system activates the next lower priority group.
Here, Priority Group 3 is the highest group. Of its three members, only 172.16.15.7:80 is available. Because one available member is less than the configured threshold of 2, BIG-IP must activate Priority Group 2 as well.
In Priority Group 2, only 172.16.15.4:80 is available. Adding this member provides two available members across the currently activated priority groups: 172.16.15.7:80 and 172.16.15.4:80. The required availability threshold is therefore satisfied, so Priority Group 1 does not need to participate. F5 specifically documents that traffic expands into lower-priority groups when the required number of members is unavailable in the higher-priority set.
Because the configured load-balancing method is Round Robin, new connections are distributed across these two eligible members.
Study Guide Reference/Topics: Pools; Priority-Based Member Activation; Priority Groups; Pool Member Availability; Round Robin Load Balancing.
質問 # 75
Active connections to pool members are unevenly distributed. The load balancing method is Least Connections (member). Priority Group Activation is disabled.
What is a potential cause of the uneven distribution? (Choose one answer)
正解:B
解説:
With Least Connections (member), BIG-IP attempts to send new connections to the pool member with the fewest current connections. In a perfectly "stateless" scenario (no affinity), this often trends toward a fairly even distribution over time.
However, persistence overrides load balancing:
* When a persistence profile is applied, BIG-IP will continue sending a client (or client group) to the same pool member based on the persistence record (cookie / source address / SSL session ID, etc.).
* This means even if another pool member has fewer connections, BIG-IP may still select the persisted member to honor session affinity.
* The result can be uneven active connection counts, even though the configured load balancing method is Least Connections.
Why the other options are not the best cause:
* A. Priority Group Activation is disabledPriority Group Activation only affects selection when priority groups are configured; disabling it does not inherently create uneven distribution under Least Connections.
* B. SSL Profile Server is appliedA server-side SSL profile affects encryption to pool members, but it does not by itself cause skewed selection across pool members. (Skew could happen indirectly if members have different performance/latency, but that's not the primary, expected exam answer.)
* D. Incorrect load balancing methodLeast Connections is a valid method and does not itself explain unevenness unless something is overriding it (like persistence) or pool members are not all eligible.
Conclusion:
A persistence profile is the most common and expected reason that active connections become unevenly distributed, because persistence takes precedence over the Least Connections load-balancing decision.
質問 # 76
The BIG-IP Administrator disables all pool members in a pool. Users are still able to reach the pool members.
What is allowing users to continue to reach the disabled pool members?
正解:B
質問 # 77
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:D
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 # 78
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