The answer is firewall. It is a network security device that observes inbound and outbound network traffic and chooses whether to allow or block specific traffic based on a well-defined set of security rules. Firewalls have been a first line of protection in network security for over 25 years. The firewall present a barrier between measured and secured internal networks that can be trusted and untrusted outside networks, for example the Internet. A firewall can be software, hardware, or even both.
<u>Normally windows end user can login 3 ways as follow:</u>
1. End user can Login as local account where user has not connected or even connected to local Area network LAN.
2. Next user can login into cloud accounts nothing but hot mail accounts
3. Login to windows domain controller where end user should connect to LAN.
Purpose of installation of Windows domain controller with Active Directory is to keep trace and keep log history activities.
Due to windows domain controller with Active Directory end user desktop or laptop has control on software access also.
Every time when end user login on windows domain controller a small modified is executed whenever is required. It is not going effort the workstation performances.
Note: - Domain severs should be POWER on first.
Answer:
A light bulb produces light from electricity
You can measure it by the amount of automatisation. The bigger technological process the easier it is to automate systems.
