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이 글을 보시게 된다면F5인증 F5CAB3시험패스를 꿈꾸고 있는 분이라고 믿습니다. F5인증 F5CAB3시험공부를 아직 시작하지 않으셨다면 망설이지 마시고DumpTOP의F5인증 F5CAB3덤프를 마련하여 공부를 시작해 보세요. 이렇게 착한 가격에 이정도 품질의 덤프자료는 찾기 힘들것입니다. DumpTOP의F5인증 F5CAB3덤프는 고객님께서 F5인증 F5CAB3시험을 패스하는 필수품입니다.
| Section | Weight | Objectives |
|---|---|---|
| Modify and Manage Virtual Servers | 50% | - Configure encryption and protocol profiles - Identify and work with iApp objects and iRules - Verify pool configurations associated with virtual servers - Configure and modify virtual server properties - Apply persistence profiles |
| Modify and Manage Pools | 50% | - Implement health monitors for pools - Configure and modify pool settings - Configure load balancing methods - Set priority groups and service port configurations |
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질문 # 74
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? (Choose two answers)
정답：B,D
설명：
In BIG-IP systems, iRules influence traffic only when they are attached to a Virtual Server. If application traffic is being sent to nodes or pool members that are not defined in the pool, this typically indicates that an iRule is overriding the default load-balancing behavior by explicitly selecting a pool or node.
According to BIG-IP Administration: Data Plane Configuration and official F5 guidance:
* iRules are associated with Virtual Servers, not directly with pools or nodes.
* To determine whether an iRule is actively affecting traffic, the administrator must inspect the Virtual Server configuration.
Explanation of the correct answers:
* B. Via the GUI at the Resources tab for the virtual serverThe Resources tab in the Configuration Utility displays all traffic-handling objects applied to the Virtual Server, including assigned iRules. This is the primary GUI location to verify whether an iRule is influencing data plane traffic.
* C. Via TMSH with the list /ltm virtual <virtual_server> commandThis TMSH command displays the full Virtual Server configuration, including any iRules listed under the rules section. It is the authoritative CLI method to confirm iRule usage.
Why the other options are incorrect:
* A. Via TMSH with the list /ltm rule <irule> commandThis command only shows the contents of an iRule and does not indicate whether the iRule is attached to or used by any Virtual Server.
* D. Via the GUI at the iRule tab for the virtual serverBIG-IP does not provide a dedicated "iRule" tab on Virtual Servers. iRules are viewed and managed under the Resources tab.
Correct Conclusion:
To verify whether an iRule is responsible for unexpected node selection, the BIG-IP Administrator must examine the Virtual Server configuration, either through the Resources tab in the GUI or by using TMSH to list the Virtual Server configuration.
질문 # 75
Users are unable to reach an application. The Virtual Server shows a red diamond status.
What is the cause?
정답：C
질문 # 76
A Standard Virtual Server reports poor network performance for Internet-based clients.
What configuration should be applied?
정답：C
설명：
WAN TCP profiles are optimized for high latency and packet loss typical of Internet clients, while LAN profiles are ideal for backend servers.
질문 # 77
Refer to the exhibit.
A BIG-IP Administrator creates a new Virtual Server to load balance SSH traffic. Users are unable to log on to the servers.
What should the BIG-IP Administrator do to resolve the issue? (Choose one answer)
정답：A
설명：
SSH is a Layer 4 TCP-based protocol that operates on TCP port 22 and does not use HTTP in any capacity. In the exhibit, the Virtual Server is configured with an HTTP Profile applied, which is inappropriate for SSH traffic and causes connection failures.
According to the BIG-IP Administration: Data Plane Configuration documentation:
An HTTP profile must only be applied to Virtual Servers handling HTTP or HTTPS traffic.
When an HTTP profile is attached, BIG-IP expects HTTP headers and attempts to parse application-layer data.
Non-HTTP protocols such as SSH, FTP (control), SMTP, and other raw TCP services will fail if an HTTP profile is enabled.
Why the other options are incorrect:
A . Set Protocol to UDP
SSH uses TCP, not UDP. Changing the protocol would break SSH entirely.
B . Set Source Address to 10.1.1.2
The source address setting controls client access restrictions and is unrelated to protocol parsing issues.
C . Set Destination Address/Mask to 0.0.0.0/0
The destination address is already valid for a specific SSH service and does not impact protocol handling.
Correct Resolution:
The BIG-IP Administrator should remove the HTTP Profile (set it to None) so the Virtual Server functions as a pure Layer 4 TCP service, allowing SSH connections to pass through successfully.
질문 # 78
Some users who connect to a busy Virtual Server have connections reset by the BIG-IP system. Pool member resources are NOT a factor.
What is a possible cause?
정답：B
설명：
When the connection limit is reached, BIG-IP resets new connections, even if pool members are healthy.
질문 # 79
......
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