Q1: Describe the specification and characteristics and applications of a modem. Q2: Differentiate between broadband and baseband communication.Q3: (i) Explain through a diagram how does ATM network work?(ii)Discuss the ATM cell format.Q4:(i)List and describe all the layers of TCP/IP with the protocol functionalities and standards.(ii)Make a comparison between Switches and Hubs.

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Hello, our administrator is out on vacation and I'm trying to locate an IP address for a particular port. I have the port number, but no name or address. I was told that I need to open a port in order to connect to the new client software I had downloaded. My firewall is on and I believe I need to add this new port to the "Exceptions" section of the firewall?Also, my operating system is Windows...