Chap 10 rev. ?s 10n11

10. In what ways can computer security protect the privacy of individuals? in what ways can computer security threaten the privacy of individuals?

Computer security can protect individuals by giving passwords and softwares. Firewalls help protect ones computer security as well as encryptions and audits. However, these may be easily hacked into by genius individuals.

11. What are smart weapons? How do they differ from conventional weapons? what are the advantages and risks of smart weapons?

Smart weapons are missiles that use computerized guidance systems to locate their targets. These weapons can be extremely accurate in pinpointing enemy targets under most circumstances. However, they reduce the amount of time people have to make life-death decisions. As decision-making time goes down, chance of making errors go up.

page 379 ?s 7and 8.

7. What are the two inherent characteristics of computers that make security so difficult?
Two inherent characteristics of computers that make security so difficult are:
- a computer does exactly what its programmed to do, including reveal sensitive information. Any system that can be programmed can be reprogrammed by anyone with sufficient knowledge.
- Any computer can do only what it is programmed to do. "[I]t cannot protect itself from either malfunctions or deliberate attacks unless such events have been specifically anticipated, thought through, and countered with appropriate programming".
8. Describe several different computer security techniques and explain the purpose of each.

Several different security techniques:

-passwords: if choosen carefully, passwords restrict ones access to computer systems and information.

-firewalls: keep internal networks secure while enabling communication with the rest of the internet.

chapter 10 review ?s pg. 379 #2, 4

2. Why is it hard to estimate the extent of computer crime?

It is hard to estimate the extent of computer crime because many computer crimes go, The ones that are detected are often unreported because businesses fear that they can lose more from negative publicity than from the actual crimes.

4. What is the most common computer crime? Who commits it? What is being done to stop it?

The most common computer crime is theft. The ones who usually commit it are ones who have greed, financial worries, or even personal problems. Its also to have revenge on a boss, or just for a prank or they can be a spy. The people are clerks, cashiers, programmers computer operators, and/or managers.

?s for after movie.

1. Name 3 networking sites. How do they allow users to participate?

- Twitter: they allow users to write something, and then send to everyone they knoe and those people then send it to the people they know, etc.

-youtube: people can post themselves asking a politican a question, or even share their opinions.

-blogger. People can blog what their opinions are, whats going on on their mind, etc.

2. Explain the impact of these networking sites in three different areas.

=-Education: Everyone, when coming to research, have to use the internet and type up their work.

-Business: In order for businesses to be found and successfyl, they have to have a facebook, twitter, etc. so that poeple can see them.

-Entertainment:one may easily find entertainment from youtube, facebook, etc. instead of going off far.

3. Consider the advantages and disadvantages of networking as pertaining to 3 social/ethical issues.
Advantages:
Equality of Access
Authenticity
control
Disadvantages:
lack of Privacy & Anonymity
lack of Security
lack of Integrity.

Key Terms Chapter 6/8

-network: A computer system that links two or more computers.

-wireless network: A network which a node has tiny radio or infrared transmitter connected to its network port so it can send and receive data through the air rather than through cables.

-Ethernet: A popular network architecture developed in 1976 at Xerox.

-Wi-Fi: A popular wireless LAN technology that allows multiple computers to connect to a LAN through a base station up to 150 feet away. Often referred to as 802.11 b.

-wireless access point: A communication device, typically connected to a wired network that is used to create a wireless network.

-LAN: local area network: Multiple personal computers connected on a network.

-MAN: metropolitan area network. A service that links two or more LANs within a city.

-WAN: wide area network. a network that extends over a long distance. Each network site is anode on the network.

-node: Each computer and shared peripheral on a local-area connections.

-routers: programs or devices that decide how to route internet transmission.
fiber-optic cable: High-capacity cable that uses light waves to carry information at blinding speeds.

-client: Client programs in desktop computers send information requests through a network to server databases on mainframes, minicomputers, or desktop computers; their servers process queries and send their requested data back to the client.

-host: The name of the host computer, network, or ISP address where the user receives email, contained in the part of an Internet email; address that comes after the at sign (@)

server;

A computer especially designed to provide software and other resources to other computers over a network.

access:

Physical proximity to a person, or knowledge about that person, a common theme in privacy discussions.

access permissions: Features that control access to shared resources in Windows XP Professional.

spam: internet junk mail.

phishing:

The use of a deceptive email message or Web site to lure a person into divulging credit card numbers or other sensitive information.

login:

Connected to a computer system or network.

password:

The most common security tools used to restrict access to computer systems

firewall: a security system consisting of a combination of hardware and software that limits the exposure of a computer or computer network to attack from crackers; commonly used on local area networks that are connected to the internet

VPN:(virtual private network)

A network that uses encryption software to create secure “tunnels” through the public Internet or between intranets; a method an organization can use to set up an extranet.

sysadmin: A system administrator, systems administrator, or sysadmin, is a person employed to maintain and operate a computer system and/or network

nodes:

Each computer and shared peripheral on a local-area network.

work station:

A high-end desktop computer with massive computing power, though less expensive than a minicomputer. Workstations are the most powerful of the desktop computers.

UPS: (uninterrupted power supply).

A hardware device that protects computers from data loss during power failures.

EDI: (electronic data interchange).

A set of specifications for conducting basic business transactions over private networks.

blogs:

Short for Web log, a personal Web page that often carries diary-like entries or political commentaries. Blogs are fast proliferating as new software allows users to create Web pages without having to learn the technical details of HTML and Web authoring.

wiki:

A Web site that lets anyone with access to a Web browser to modify its pages. The best-known example is Wikipedia.

asynchronous communication:

Delayed communication, such as that used for newsgroups and mailing lists, where the sender and the recipients don’t have to be logged in at the same time

real-time communication: chat room, IM
bps: Internet communication that enables you to communicate with other users who are logged on at the same time.

GPS:

A defense department system with 24 satellites that can pinpoint any location on the Earth.

Internet telephony:

A combination of software and hardware technology that enables the Internet to, in effect, serve as a telephone network. Internet telephony systems can use standard telephones, computers, or both to send and receive voice messages.

, VoIP:

protocol that allows the Internet to be used to make voice telephone calls.

, video teleconference:

Face-to-face communication over long distances using video and computer technology.

voice mail:

A telephone-based messaging system with many of the features of an email system.

NOS:

Server operating system software for a local-area network