please answer the question

1) As a system administrator how would you deal with open but used ports from the above figure?

2) Explain how nmap tool can be used by both network administrator and hakers

Starting Nmap 7.60 ( https:/map.org ) at 2017-11-24 04:45 EST map scan report for 192.168.1.127 Host is up (0.0020s latency). Not shown: 65522 closed ports PORT STATE SERVICE 135/tcp open msrpc 139/tcp open netbios-san 443/tcp open https 445/tcp open microsoft-dscles.in 902/tcp open iss-realsecure 912/tcp open apex-mesh 3389/tcp open ms-wbt-server 49152/tcp open unknown 49153/top open unknown 49154/tcp open unknown 49155/tcp open unknown 49158/tcp open unknown 49159/tcp open unknown MAC Address: FC:AA: E6 (Gigabyte Technology) map done: 1 IP address (1 host up) scanned in 23.07 seconds What the address of the