Chapter 11 Database Management Requirements: 1. Principle of easiest penetration 2. The kinds of computer security breaches 3. What is firewall 4.了解英文摘要的写作技巧 《什第机专出美语 713Chapter 11 Database Management 计算机专业英语 11-3 Requirements: 1. Principle of easiest penetration 2. The kinds of computer security breaches 3. What is firewall 4. 了解英文摘要的写作技巧