A BIG-IP Administrator notices that one of the servers that runs an application is NOT receiving any traffic. The BIG-IP Administrator examines the configuration status of the application and observes the displayed monitor configuration and affected Pool Member status.
What is the possible cause of this issue?
A . The Node Health Monitor is NOT responding.
B . The application is NOT responding with the expected Receive String.
C . HTTP 1.1 is NOT appropriate for monitoring purposes.
D . The BIG-IP device is NOT able to reach the Pool.
Answer: A