A BIG-IP Administrator needs to apply a health monitor for a pool of database servers named DB_Pool that uses TCP port 1521. Where should the BIG-IP Administrator apply this monitor?
In the BIG-IP system object hierarchy, health monitors can be applied at three levels:Node,Pool, andPool Member.
Pool Level (Properties):Applying a monitor at thePool > Propertieslevel is the most common and efficient administrative practice. When applied here, the monitor is inherited by all members of that pool. If the monitor fails for a specific member, that member is marked "down" specifically for that pool.
Node Level:If a monitor is applied at the Node level (Local Traffic > Nodes), it checks the health of the physical IP address itself. If it fails, that node (and all pool members associated with it) is marked down globally across the entire system.
Member Level:Applying a monitor at thePool > Memberslevel allows for specific "per-member" monitoring, which is usually only done if different members in the same pool require different health checks.
The Specific Case:For a standard database pool like DB_Pool, the administrator should navigate toLocal Traffic > Pools > DB_Pool > Propertiesand select the appropriate monitor (e.g., a custom TCP or Oracle monitor) from the "Health Monitors" configuration section.
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