Company has a server running Windows Small Business Server 2003 Standard Edition. The network contains ten computers running Windows XP Professional. The proprietary tax managment application is the…

Company has a server running Windows Small Business Server 2003 Standard Edition. The network contains ten computers running Windows XP Professional. The proprietary tax managment application is the main software used in Company.And there is broadband connection for Internet access and remove users to check e-mail or company files. Considering protecting sensitive data, the senior accountant accesses data regularly from remote locations. Executive wants to use a firewall to protect file server. And he is interested in a simple device without complex installation. Which standard should you choose to meet the needs of the firm and requires the least amount of administrative effort?