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Success in the BIG-IP Administration Support and Troubleshooting (F5CAB5) certification exam helps people update their skills. Many aspirants don't find updated F5 F5CAB5 practice test questions and fail the final test. This failure in the F5 F5CAB5 Exam leads to a loss of money and time. If you are also planning to attempt the BIG-IP Administration Support and Troubleshooting (F5CAB5) exam and are confused about where to prepare yourself for it then you are at the right place.
NEW QUESTION # 47
Which menu should you use on the BIG-IP Configuration Utility to generate a QKView support file? (Choose one answer)
Answer: C
Explanation:
A QKView is the primary diagnostic file used by F5 Support to analyze BIG-IP system health, configuration, performance, and logs. It collects a wide range of data, including running configuration, license details, module provisioning, hardware status, logs, statistics, and diagnostic command output. Generating a QKView is a standard first step when troubleshooting issues or opening a support case with F5.
In the BIG-IP Configuration Utility (GUI), the correct location to generate a QKView is System > Support (Option C). This menu is specifically designed for support and troubleshooting activities. From this section, administrators can create QKView files, upload them directly to F5 iHealth, or download them locally for later analysis or submission to F5 Support.
The other options are incorrect:
System > Configuration (Option A) is used for system-wide settings such as device name, NTP, and DNS.
System > Archive (Option B) is used to create UCS backups, not diagnostic QKViews.
System > Logs (Option D) is used to view and manage log files, not to generate support bundles.
This workflow is clearly documented in BIG-IP Administration and Support guides and is considered a best practice for efficient troubleshooting and support engagement.
NEW QUESTION # 48
A BIG-IP Administrator needs to determine why only one pool member is showing connections from the virtual server, resulting in uneven load balancing.
What two reasons would cause uneven load balancing? (Choose two answers)
Answer: C,D
Explanation:
Uneven load balancing on a BIG-IP system typically occurs when traffic is not distributed evenly across all available pool members. One common reason is that monitors have marked down multiple pool members (Option B). When health monitors fail for specific pool members, BIG-IP automatically removes those members from load-balancing decisions. As a result, traffic is sent only to the remaining healthy member, creating the appearance that load balancing is not functioning correctly. This behavior is expected and aligns with BIG-IP's design to ensure traffic is sent only to healthy resources.
Another frequent cause is the presence of a persistence profile on the pool or virtual server (Option C). Persistence (such as source address or cookie persistence) forces subsequent client connections to be sent to the same pool member for session continuity. While persistence is critical for certain applications, it can override the load-balancing algorithm and cause most or all traffic to be directed to a single pool member, especially during low traffic volumes or testing scenarios.
The other options are incorrect because a virtual server marked down (Option A) would not pass traffic at all, and all pool members marked down (Option D) would result in no connections rather than uneven distribution. This analysis follows standard BIG-IP troubleshooting methodology using pool status, monitor results, and persistence configuration review.
NEW QUESTION # 49
Plaintext
warning tmm[<pid>]: 011e0002:4: sweeper_segment_cb_any: Aggressive mode
/Common/default- eviction-policy activated (0) (global memory).
(345209/690176 pages)
warning tmm[<pid>]: 011e0003:4: Aggressive mode sweeper:
/Common/default-eviction-policy (0) (global memory) 1 Connections
killed
What is happening when the BIG-IP Administrator sees the messages in the LTM log displayed above? (Pick the 2 correct responses below)
Answer: B,D
Explanation:
These log messages indicate that the BIG-IP system is under significant resource pressure and has activated its Adaptive Connection Management.
Global Eviction Policy: The message Aggressive mode ... activated (global memory) confirms that the system has reached a memory utilization threshold that triggers the eviction policy. This happens because TMM (the data plane) is running low on available memory pages.
Sweeper/Reaping: Once in "Aggressive mode," the BIG-IP "sweeper" starts reaping (terminating) connections to free up memory. The log Connections killed confirms this is occurring.
Impact: The system does not drop all connections; it targets connections based on the eviction policy (e.g., oldest connections or those exceeding limits) to bring memory usage back to safe levels. Thus, some connections will be dropped (Option A), and the cause is TMM memory exhaustion (Option C).
NEW QUESTION # 50
Which command shows routing table?
Answer: A
Explanation:
Displays routes used for packet forwarding decisions.
NEW QUESTION # 51
A BIG-IP Administrator needs to determine why only one pool member is showing connections from the virtual server, resulting in uneven load balancing.
What two reasons would cause uneven load balancing? (Choose two answers)
Answer: C,D
Explanation:
Uneven load balancing on a BIG-IP system typically occurs when traffic is not distributed evenly across all available pool members. One common reason is thatmonitors have marked down multiple pool members (Option B). When health monitors fail for specific pool members, BIG-IP automatically removes those members from load-balancing decisions. As a result, traffic is sent only to the remaining healthy member, creating the appearance that load balancing is not functioning correctly. This behavior is expected and aligns with BIG-IP's design to ensure traffic is sent only to healthy resources.
Another frequent cause isthe presence of a persistence profile on the pool or virtual server (Option C).
Persistence (such as source address or cookie persistence) forces subsequent client connections to be sent to the same pool member for session continuity. While persistence is critical for certain applications, it can override the load-balancing algorithm and cause most or all traffic to be directed to a single pool member, especially during low traffic volumes or testing scenarios.
The other options are incorrect because avirtual server marked down (Option A)would not pass traffic at all, andall pool members marked down (Option D)would result in no connections rather than uneven distribution.
This analysis follows standard BIG-IP troubleshooting methodology using pool status, monitor results, and persistence configuration review.
NEW QUESTION # 52
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