VPN or virtual private network is used to connect two networks by means internet. VPN uses PPTP (point-to-point tunneling protocol) and other security procedures to make a secure tunnel on internet.
What are the two important TCP Socket classes?
Can you be bale to identify between Straight- through and Cross- over cable wiring? and in what case do you use Straight- through and Cross-over?
When MalformedURLException and UnknownHostException throws?
If you hear the CPU fan is running and the monitor power is still on, but you did not see any thing show up in the monitor screen. What would you do to find out what is going wrong?
ISO layers and what layer is the IP operated from?
What is an ARP and how does it work?
Explain What are digital signatures and smart cards?
What is Kerberos Protocol?
Explain How does traceroute work? Now how does traceroute make sure that the packet follows the same path that a previous (with ttl - 1) probe packet went in?
Explain What are all the technical steps involved when the data transmission from server via router?
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