信息安全中考试复习.doc

Tutorial 1 1. What type of security was dominant in the early years of computing? Answer: In the early years of computing when security was addressed at all, it dealt only with the physical security of the computers themselves and not the data or connections between the computers. 2. Who is known as the founder of the Internet? To what project does it trace its origin? Who initiated this project and for what purpose? Answer: Larry Roberts, known as the founder of the Internet. The origin of todays Internet, traces to the ARPANET project. During the Cold War, many more mainframes were brought online to accomplish more com- plex and sophisticated tasks. It became necessary to _nd a way to enable these mainframes to communicate with each by means of a less cumbersome process than mailing magnetic tapes between computer centers. In response to this need, the Department of Defenses Advanced Research Project Agency (ARPA) began examining the feasibility of a redundant, networked communications system to support the militarys exchange of information. 3. What layers of security should a successful organization have in place to protect its operations? Answer: (a) Security, to protect physical items, objects, or areas from unauthorized access and mis- use. (b) Personal security, to protect the individual or group of individuals who are Physical authorized to access the organization and its operations. (c) Operations security, to protect the details of a particular operation or series of activities. (d) Communications security, to protect communications media, technology, and content. (e) Network security, to protect networking components, connections, and contents. (f) Information security, to protect information assets. 4. What are the three components of the CIA triangle? What are they used for? Answer: The three components of the C.I.A. are: (a) Con_dentiality (assurance that the information is shared only among authorized persons or organizations); (b) Integrity (assuranc