Which is the port number used by a HTTP Server? Select one: 53 25 21 80 Choose the command to view the IP configuration of a device in ubuntu. Select one: None of the choices are correct ifconfig iconfig ipconfig If the subnet mask of a device in a network is 255.255.0.0, which of the following is the correct IP address that can be given to that device? Select one: 196.170.4.6 192.168.12.5 130.40.5.1 10.10.5.1 If the IP address of a device is 70.32.5.6, what is the subnet mask of the IP ? Select one: 255.255.255.255 255.255.0.0 255.0.0.0 255.255.255.0 A network topology with 2 PC's and a server in ist network and one PC in 2nd network can be done using a single router and a switch. Select one: True O False