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1. What is the IP of scanme.nmap.org? 2. If you found a computer that is up...

1. What is the IP of scanme.nmap.org?

2. If you found a computer that is up and running, which services (TCP and UDP) are open on it?

3. What is the Operating system and its possible version that is running on any of the live computers?

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Answer #1

1. To find the ip address of scanme.nmap.org, open command prompt and type tracert scanme.nmap.org and then you can find the IP address.

2. When a computer is up, Both TCP and UDP are up.

TCP is connection oriented whereas UDP is connectionless which means TCP tracks all the data that is sent but UDP does not. Receiving a mail is an example of TCP because there is acknowledgement required. Video Streaming is an example of UDP because lost data frames does not matter. Both of these run on a computer.

3. An Operating System is something that manages both hardware and software of a computer to provide us common services.

The possible version of OS running on any live system could be one among the following

  • Versions of Microsoft Windows(10, 8.1, 8, 7, Vista and XP)
  • Apples mac OS
  • Blackberry tablet OS
  • Windows Server
  • Linux
  • FreeBSD
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