Question $7(4$ points$)$

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What is the purpose of the command below?

nc $-$l $9090$

Question $7$ options:

The nc program is sending UDP packets to a remote host with the destination port $9090.$

The nc program is listening on TCP port $9090.$

The nc program is listening on UDP port $9090.$

The nc program is sending TCP packets to a remote host with the destination port $9090.$