1. We involve a variety of synthetic security technologies, such as physical security, network security, application system security, data security and security management. 具体应用上涉及了防火墙、入侵检测、虚拟专用网络、网络防病毒、虚拟交换网、密码技术等。
2. Guard duties at fixed points chiefly mean, among others, security guard, watch and ward, prison and detention guard, escort and patrol. 固定目标执勤，主要是担负警卫、守卫、守护、看押、看守和巡逻等勤务。
3. Therefore, the property can be found in security guard, manage, and failed to perform security guard duties, violating the "public contract" agreed by the parties, constitutes a breach of contract. 因此，可以认定物业在安全防范中疏于管理，未能切实履行安全防范义务，违反了《公共契约》的约定，构成违约。
4. Base on different applications, the system administrator can put up the security policy. He can set up different security levels, and put different security purviews to different security levels. 依据应用场合不同，允许系统管理员进行安全策略配制，即设置不同的安全级别，以及对不同安全级别赋予不同的安全权限。
5. 1. Base on different applications, the system administrator can put up the security policy. He can set up different security levels, and put different security purviews to different security levels. 依据应用场合不同，允许系统管理员进行安全策略配制，即设置不同的安全级别，以及对不同安全级别赋予不同的安全权限。
