Every morning, you inspect your company's development and staging servers. You do this to ensure that the servers have the same versions of all files in your Web application.For security reasons, you can only access the staging server through FTP.You need to synchronize files from the staging server so that the staging server matches the development server.You want to achieve this goal by using the minimum amount of administrative effort.
Which tool should you use?（）
 

You are working with a team of developers on a Web site. You copy the Web site from the staging server to work on it locally. While making changes, you create new C# source code files and delete old ones. You need to ensure that your changes propagate to the staging server without affecting any files that you have not modified.
Which tool should you use? （）