QuestionQ17

Basic Network Security Concepts

A system on your network is showing slower-than-normal response times. To collect information about the system's status, you run the netstat -1 command to display all TCP ports in the Listening state.

What does the Listening state indicate for these ports?

  • A The state of the connection on the ports is unknown.
  • B The remote end disconnected and the ports are closing.
  • C The ports are open on the system and are waiting for connections.
  • D The ports are actively connected to another system or process.
Explanation

A TCP port in the LISTEN state has been opened by a local service and is passively waiting to accept incoming connection requests. It is not an unknown, closing, or already established connection state. Microsoft documents that netstat reports TCP ports on which the computer is listening.

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