Inspect them and make sure that they are exact copies then delete one if they are the same.
Yes Microsoft and Apple used the closed-source approach to better secure from malware and make to make their operating systems more user friendly.
<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.
The answer is C. The modem does not contain enough bandwidth to handle modern video streaming.