F5CAB4: BIG-IP Administration Control Plane AdministrationDemo

Question

The BIG-IP Administrator executes netstat -an | grep :443 and observes this output: tcp 0 0 0.0.0.0:443 0.0.0.0:* LISTEN.

What does this output show about the service on port 443?

A The service is actively listening on all interfaces for HTTPS traffic.
B The service is actively listening only on the loopback interface.
C The service is in a standby state and unable to accept connections.
D The service indicates no connections to the LISTEN port

Explanation

0.0.0.0:443 is an IPv4 wildcard bind, so the TCP service is bound to port 443 on all IPv4 interfaces. LISTEN means it is ready to accept incoming connections; port 443 is the standard HTTPS port.

F5CAB4: BIG-IP Administration Control Plane AdministrationDemo

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Notes

Readiness

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