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101 · Question #96
101 Question #96: Real Exam Question with Answer & Explanation
The correct answer is C: BIG-IP node or member the result are to be applied to. Must know all. For an external monitor to function on BIG-IP, the system must know the name of the external program to execute and which node or pool member should receive the resulting health status.
Section 3: Load Balancing and High Availability Basics
Question
A site wishes to use an external monitor. Other than what is coded in the monitor script, what information must be configured on the BIG-IP for the monitor to be functional? (Choose two.)
Options
- ABIG-IP services that are running on the system to be tested.
- BBIG-IP the IP addresses of the devices that will be tested. Must know which
- CBIG-IP node or member the result are to be applied to. Must know all
- DBIG-IP must know the name of the program.
- EBIG-IP must know which function the program is going to test. Must know
Explanation
For an external monitor to function on BIG-IP, the system must know the name of the external program to execute and which node or pool member should receive the resulting health status.
Common mistakes.
- A. The BIG-IP services running on the monitored system are not configured on BIG-IP itself - determining what to probe is the responsibility of the script logic, not a separate BIG-IP configuration parameter.
- B. The IP address and port of the monitored node are automatically passed to the external script at runtime via environment variables ($NODE_IP and $NODE_PORT) and do not require explicit configuration outside the monitor assignment.
- E. The function or behavior the program tests is entirely determined by the script code itself and is not a configurable parameter in the BIG-IP external monitor object.
Concept tested. BIG-IP LTM external monitor required configuration
Topics
#external monitor#monitor configuration#pool member#script-based monitoring
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