There are three types of Installation methods
1. Local/Standard installation
2. Unattended installation
3. Remote Installation
To perform standard installation you need to login into the machine and the login is part of local administrator group.
It is also known as silent installation. Install multiple SQL Servers with identical configurations without using the interactive SQL Server setup is known as Unattended installation.
Installation initiates from command prompt ( batch file will call setup file).
All the parameters are saved in configuration file (setup.exe)
An unattended installation using a configuration file using the following command line at a new command prompt.
You can install SQL Server from remote machine also.
To perform remote installation the user account should have following permissions
1. Have administrative rights on the remote computer.
2. Have read access to the setup source files folder.