F5CAB3試験参考書、F5CAB3試験準備、F5CAB3テスト問題集

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F5 F5CAB3 Exam Overview:

Certification Vendor:F5 Networks
Exam Name:F5 Certified BIG-IP Administrator: Data Plane Configuration
Exam Number:F5CAB3
Passing Score:247 out of 350 (approximately 70%)
Exam Duration:120 minutes
Exam Format:Build List, Multiple Choice, Multiple Select
Certificate Validity Period:2 years
Available Languages:English
Exam Price:$160 USD
Related Certifications:F5 Certified Specialist, Data Plane Configuration
F5 Certified BIG-IP Administrator (F5-CA)
Real Exam Qty:60-80
Sample Questions:F5 F5CAB3 Sample Questions
Exam Way:Online proctored or test center
Pre Condition:Recommended: F5 Certified Administrator certification or equivalent experience with BIG-IP LTM
Official Syllabus URL:https://www.f5.com/go/certification

>> F5CAB3ファンデーション <<

試験の準備方法-便利なF5CAB3ファンデーション試験-効果的なF5CAB3合格対策

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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
  • Apply procedural concepts required to modify and manage virtual servers: This domain covers managing virtual servers including applying persistence, encryption, and protocol profiles, identifying iApp objects, reporting iRules, and showing pool configurations.
トピック 2
  • Apply procedural concepts required to modify and manage pools: This domain addresses managing server pools including health monitors, load balancing methods, priority groups, and service port configurations.

F5 BIG-IP Administration Data Plane Configuration 認定 F5CAB3 試験問題 (Q27-Q32):

質問 # 27
A Standard Virtual Server reports poor network performance for Internet-based clients.
What configuration should be applied?

正解：A

解説：
WAN TCP profiles are optimized for high latency and packet loss typical of Internet clients, while LAN profiles are ideal for backend servers.


質問 # 28
A BIG-IP Administrator creates a new Virtual Server. The end user is unable to access the page. During troubleshooting, the administrator learns that the connection between the BIG-IP system and server is NOT set up correctly. What should the administrator do to solve this issue? (Choose one answer)

正解：A

解説：
The issue described is a classic symptom of asymmetric routing, which frequently occurs when the BIG-IP system and the back-end servers reside on the same subnet (often referred to as a "one-arm" deployment).
The Routing Problem: By default, the BIG-IP system preserves the original client source IP address when forwarding traffic to a pool member. If the server is in the same subnet as the client or if the server's default gateway is not the BIG-IP, the server will attempt to send its response directly back to the client's IP address, bypassing the BIG-IP.
Stateful Failure: Since the BIG-IP is a Full Proxy, it maintains a state table. Because the response packet never returns through the BIG-IP, the system cannot complete the three-way handshake or manage the application session, resulting in a connection failure for the user.
The Solution (SNAT): Enabling Source Network Address Translation (SNAT) solves this by changing the source IP address of the request to an IP address owned by the BIG-IP (typically a self-IP).
Requirement for Subnet Alignment: To ensure the server sends the response back to the BIG-IP, the translation address must be reachable. By using a self-IP configured in the same subnet as the servers, the BIG-IP ensures that the server sees the request coming from a local "neighbor." The server will then naturally send the response back to that self-IP, allowing the BIG-IP to translate the packet back and forward it to the client.
Why other options are incorrect:
A: Disabling address translation would ensure the server-side traffic uses the client IP, making asymmetric routing inevitable in this scenario.
B: This is technically contradictory; "Auto Map" specifically uses existing self-IPs and does not require or use a "SNAT pool" configuration.
C: While using a specific translation address can work, it does not inherently guarantee the Layer 2/Layer 3 reachability mentioned in the scenario as effectively as ensuring the self-IP is correctly placed in the server's subnet.


質問 # 29
Application administrators are reporting that nodes different from those configured in the pool are selected.
The use of an iRule is suspected. How can the BIG-IP Administrator check if an iRule is used for this traffic?
(Pick the 2 correct responses below)

正解：A、D


質問 # 30
A node is a member of multiple pools and hosts different applications. If one application becomes unavailable, only that pool member should be marked down.
What should the BIG-IP Administrator deploy?

正解：A

解説：
Application-level monitors ensure that only the affected service is marked down, not the entire node.


質問 # 31
All pool members are online and all other settings are default.
What might alter the load balancing behavior?

正解：C

解説：
Persistence overrides load balancing decisions by maintaining client-to-server affinity.


質問 # 32
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