Answers of Chapter 11 "Discovering Computers 2011 : Living in a Digital World"

True/False
1. False
2. True
3. False
4. True
5. False
6. True
7. True
8. True
9. True
10. False
11. True
12. True

Multiple Choice
1.b
2.d
3.a
4.c
5.c
6.d
7.d
8.c


Matching
1.j
2.d
3.e
4.g
5.i
6.c
7.b
8.a
9.h
10.f

Short Answers
1. Antivirus protects the computer by identifying and deleting viruses in all storage of the computer.
Virus hoax is the e-mail that tries to tell unexisted virus to the recipients.

2. Energy Star is a program that creates the concept of energy-efficient computing, which when computers are not in use, they should not consume many electricity by turning it to sleep mode or other modes.
Users should not store obsolete computers in their house, instead, they can send itu to manufactures to reuse those computers to create furnitures.

3. Information privacy is the rights of the individuals or companies to restrict the use of their information.
To protect our information, we can use : encryption, digital certificates, transport layer security, secure HTTP, and VPN.

4. By using phishing filter and not clicking on phishing emails.
Clickjacking happens when users click on an object in the web, like buttons, images, then it will generates some events that is not beneficial to users.

5. Companies and schools use content filtering.
The rating of content filtering works on whether certain website passes the limits or not. If it has not passed the limit, it still can be shown to users. This facility applied in Yahoo!, AOL, etc. Another rating is through the Web filtering software that creates firewall to computers for the content filtering.