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| Certification Vendor: | F5 Networks |
|---|---|
| Exam Name: | BIG-IP Administrator |
| Exam Number: | 101 |
| Certificate Validity Period: | 2 years |
| Exam Price: | USD $160 |
| Real Exam Qty: | 80 |
| Exam Duration: | 90 minutes |
| Available Languages: | English, Japanese |
| Passing Score: | 70% |
| Related Certifications: | F5 Certified Solution Expert - LTM F5 Certified Solution Expert - Security |
| Exam Format: | Scenario-based, Multiple Choice |
| Sample Questions: | F5 F5CAB5 Sample Questions |
| Exam Way: | Online proctored or at Pearson VUE testing center |
| Pre Condition: | F5 recommends completing F5 BIG-IP Administrator certification training or having equivalent hands-on experience with BIG-IP LTM |
| Official Syllabus URL: | https://support.f5.com/csp/education-certification |
あなたの分野で関連するF5CAB5認定を取得することが、F5あなたの専門知識とスキルを示す最も強力な方法です。 ただし、大多数の受験者がF5CAB5試験に合格するために準備するのは簡単ではありません。もしあなたが今試験を心配している受験者の一人であれば、おめでとうございます、あなたは私たちCertJukenのF5CAB5試験を受けることができます ツール。 F5CAB5試験トレントのガイダンスで、あなたは試験に合格するだけでなく、関連するBIG-IP Administration Support and Troubleshooting認定を簡単に取得できることを保証できます。
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質問 # 80
A BIG-IP Administrator observes the following pool member status message:
Pool /Common/testpool member /Common/10.120.0.5:8090 monitor status
down
[/Common/http: up, /Common/http2: down; last error:]
Why is this pool member being marked down? (Choose one answer)
正解：B
解説：
The pool member is marked DOWN because it is monitored by multiple health monitors, specifically an HTTP monitor and an HTTP/2 monitor. The status message clearly shows that the HTTP monitor is UP, while the HTTP/2 monitor is DOWN. In BIG-IP, when multiple monitors are assigned to a pool member, the default behavior is AND logic, meaningall assigned monitors must succeed for the pool member to be considered healthy.
In this scenario, the server is responding successfully to standard HTTP (likely HTTP/1.1) requests but does not support or respond correctly to HTTP/2 requests. As a result, the HTTP/2 monitor fails, which causes the overall monitor status to be DOWN, even though HTTP traffic itself is working.
This behavior is expected and documented in BIG-IP monitoring logic. Unless the monitor rule is explicitly changed to"at least one of", a single failing monitor will mark the pool member down.
Therefore, the correct conclusion is that the pool member isonly serving HTTP traffic, not HTTP/2.
The resolution would be to either remove the HTTP/2 monitor, correct the application to support HTTP/2, or adjust the monitor rule to match the intended health-check logic.
質問 # 81
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?
正解：A
解説：
When a virtual server is not working as expected despite the pool members being marked "UP" (Green), the issue is frequently a return-path routing failure. If the BIG-IP forwards a request with the original client's source IP address, the backend server will try to respond directly to that client. If the server does not have its default gateway pointed back to the BIG-IP, the response packet will be routed elsewhere (or dropped), resulting in a connection timeout for the user. To resolve this, the administrator must configure "Source Address Translation" (SNAT). By setting SNAT to "Automap" or a specific SNAT address, the BIG-IP replaces the client's IP with its own internal self-IP. The backend server then sees the BIG-IP as the source and sends the response back to it locally. This troubleshooting step ensures a functional, symmetric tr18affic flow. Identifying the need for SNAT is one of the most common troubleshooting tasks for new virtual server deployments where the BIG-IP is not the default gateway for the backend servers.
質問 # 82
A traffic group includes four devices. The failover method is HA order. The failover order is:
* BIGIP-D
* BIGIP-B
* BIGIP-C
* BIGIP-A
Auto fallback is enabled. BIGIP-D has been forced to standby. BIGIP-B was active before being rebooted.
Which device is active when BIGIP-B is up after the reboot?
正解：A
解説：
To understand which device becomes active, we must look at how the BIG-IP system handles HA Order and Auto Fallback within a traffic group.
* HA Order Mechanism: When a traffic group is configured with an "HA Order" list, the system prefers to host the traffic group on the highest-ranking available device in that list (1 being the highest).
* The Impact of "Forced to Standby": BIGIP-D is the first choice in the order, but it has been "Forced to Standby." This state is persistent and manual; until an administrator releases the "Force to Standby" state, the device is ineligible to host the traffic group, effectively removing it from the top of the preference list.
* Auto Fallback: When "Auto Fallback" is enabled, the traffic group will automatically migrate back to a higher-priority device in the HA order as soon as that device becomes available and is in a healthy
"Standby" state.
* The Scenario Logic: 1. BIGIP-D is ineligible (Forced Offline/Standby).
2. BIGIP-B is the next highest device in the HA Order (Rank 2).
3. While BIGIP-B was rebooting, the traffic group would have failed over to BIGIP-C (Rank 3).
4. Once BIGIP-B finishes booting and joins the cluster in a "Standby" state, the Auto Fallback setting triggers.
5. Because BIGIP-B is higher in the HA Order than the current active device (BIGIP-C) and the only device above it (BIGIP-D) is ineligible, the traffic group fails back to BIGIP-B.
質問 # 83
A device group is currently in theChanges Pendingsync status. How can the BIG-IP Administrator determine which member of the device group has the most recent configuration? (Choose one answer)
正解：D
解説：
When a BIG-IP device group shows a Changes Pending status, it indicates that one or more devices in the group have configuration changes that have not yet been synchronized to the other members. To identifywhich device has the most recent (authoritative) configuration, the administrator must view the detailed synchronization status at thedevice group level.
The correct location is Device Management > Device Groups (Option D). Within this menu, the BIG-IP Configuration Utility displays each device group along with its synchronization status and provides details about which device has pending changes. From this view, the administrator can clearly see which device is marked as havingchanges pending, making it the source device that should be used to initiate a Sync to Groupoperation.
質問 # 84
In the BIG-IP Configuration Utility, a user requests a single screen view to determine the status of all Virtual Servers and associated pool members, as well as any iRules in use. Where should the BIG-IP Administrator instruct the user to find this view?32
正解：A
解説：
Comprehensive and Detailed Explanation From BIG-IP A41dministration Support and Troubleshooting documents: To confirm functionality across a complex environment, the "Network Map" is the most efficient troubleshooting tool in the Configuration Utility43. It provides a hierarchical, visual representation of the traffic management objects44. A single glance allows the administrator to see the status of a Virtual Server (Green/Red/Yellow), the status of its associated pool, the health of individual pool members, and which iRules are currently attached45. This view is superior to the standard "Virtual Server List" for troubleshooting because it maps the dependencies between objects46. For example, if a Virtual Server is "Red," the Network Map will show if that status is inherited from a failed pool or a specific monitor failing on a pool member. Reviewing these basic stats in the Network Map helps the administrator quickly isolate whether a failure is at the service level (Virtual Server), the logic level (iRule), or the hardware level (Pool Member).
質問 # 85
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