7) Which of the following statement is/are FALSE? A. Adware is a software which can collect users' information (e.g. internet surfing habits, personal information, bank account, etc.), and send to another entity without their consent. B. Spamming is a software that hides within or looks like a legitimate program and it can open a "back door" (a security hole) to hackers so that they can hack in the computer or the network. C. The events of breaking the security mechanism of a computer network are called hacking. The person who hacks is called a hacker. D. Besides hacking, we also use the term "routing" to describe those activities that may cause damages to computers and networks, or cause some kinds of loss to a user. E. Distributed Denial of Service (DDoS) is an attempt to make an online service unavailable by overwhelming it with traffic from a single source. 8) Which of the following statement(s) is/are TRUE? A. To detect and prevent malware attacks, we should install antivirus software. E.g. NOD 32, McAfee, Norton, Kaspersky, etc. B. To encrypt is to scramble and convert the original data or information into an unintelligible and meaningless form. C. To decrypt a file, one needs to provide a piece of data correctly, and the piece of data is 4 usually called the encryption key. D. Computer hardware and software can be protected through encryption. E. For an infected computer, firewall can scan viruses and other malware, then remove them, or quarantine the infected files.