Answer:
Extended authentication
Explanation:
Xauth = Extended authentication
An extended authentication can cause security to be increased because it requires the user to enter a username and password. These details would then be authenticated at the internal database of the controller. This extension is an ipsec extension which would enable VPN users to enter a username and password. These details would be required of the user while trying to connect and they would be checked against the login details registered by such a user.
Answer:
Ask to the client all the information about the problem and try to solve it by phone.
If its no possible to solve it by phone, then recall all the information about the problem, so the personal doing the on-site supports can pre-diagnose the problem and give an opportunity solution.
Answer:
Is a Back door
Explanation:
A back door is known as a way to gain access to a system by avoiding necessary authentication or encryption. This put in place by either the system's designers or hackers once the system is compromised.
