KUNCI JAWABAN USING INFORMATION TECHNOLOGY CHAPTER / BAB 2

Learning 1          MEMORIZATION

Self-Test Questions

1.      Today’s data transmission speeds are measured in Bps, Kbps, Mbps, and Gbps.

2.      A(n) Cable Modem, connects a personal computer to a cable-TV system that offers an internet connection.

3.      A space station that transmits data as micro waves is a Communications Satellite.

4.      A company that connects you through your communications line to it’s server, which connects you to the internet, is a(n) ISP.

5.      A rectangular area on the computer screen that contains a document or displays an activity is called a(n) Window.

6.      Flaming is writing an online massage that uses derogatory, obscene, or inappropriate language.

7.      A(n) Web Browser is a software that enables users t view web pages and to jump from one page to another.

8.      A computer with a domain name is called a(n) Server.

9.      HTTP comprises the communications rules that allow browsers to connect with web servers.

10.  A(n) Plug IN is aprogram that adds a specific feature to a browser, allowing it to play or view certain files.

11.  Unsolicited email in the form of advertising or chain letters known as Spam.

12.  The expression of hoe much data-text, voice, video, and so on – can be sent through communications channel in a given amount of time is known as Bandwidth.

13.  A(n) URL is string of characters that points to a specific piece of information somewhere in the web.

14.  Some websites may leave files on your hard disk that contain information such as your name, password, and preferences; they are calles Cookies.

15.  Using trusted institutional names to elicit confidential information is called Phising.

16.  The kind of spyware that can record each characters you type and transmit that information to someone else on the internet, making it possible to strangers to learn your passwords and other information, is called Key Logger.

  

Multiple-Choice Questions

1.      B. 1 thousand

2.      C. Domain

3.      D. User ID

4.      C. Name of the browser

5.      D. TI line

6.      B. Flame only when necessary

7.      C. POP3

8.      E. No one owns the internet; the components that make up the internet are owned and shared by thousands of public and private entities.

9.      B. IP address

10. A. NAP

11. B. IE

12. B. Phising

True / False Questions

1.      False

2.      False

3.      False

4.      True

5.      False

6.      False

7.      True

8.      True

9.      True

10.  False

Learning 2          COMPREHENSION

Short-Answer Questions

1.      Name three metods of data transmission that are faster than a regular modem connection.

T1 line, cable modem, satellite wireless connection.

2.      What does log on mean?

Log on is mean to make a connection to a remote computer.

3.      What is netiquette, and whay is it important?

“Network etiquette” or apppropriate online behavior. Because internet is used world wide, you will need a good behavior to use internet.

4.      Briefly define bandwidht.

An expression of how much data-text, voice, video, or so on-can be sent through a communications channel in a given amount of time.

5.      Many web document are “linked”. What does that mean?

Connected to the other documents or webages that contain related information.

6.      Compare and contrast a cable modem service to DSL service.

o   DSL receive data at the rate 1.5-10 Mbps and can send data at only 128 Kbps-1.5 Mbps, you can download 6 minute music video in only 11 minutes. The advantage of DSL is that it is always on and its transmission rate is relatively con sistent.

o   Cable modem send data at rate 1.4 Mbps- 30 Mbps, you can download 6 minute music video in only 2 minutes. The disadvantage of cable modem is that you and your cable TV viewing neighbours are sharing the system and consequently, during the peek load times, your service may be slowed to the speed of a regular dial-up modem. Also using an internet connection that is always on- and that, in the case of cable, you share with other people invites outside interference with your computer.

7.      Explain the basics of how the internet works.

Dial up with your client computer’s modem connecting via a local phone call to your ISP.

8.      What expanded functions does IMAP have?

If your acces provider and email software support IMAP, you can search through your email massages while they are still on the access provider’s server before you download them.

9.      Briefly explain what TCP/IP does.

IP is used to send the packets across the internet to their final destination, and TCP is used to reassemble the packets in the correct order.

10.  Why was ICANN established?

To regulate human friendly internet domain names-those address ending with .com, .org, .net and so on, that overline IP addresses and identify the website type.

11.  What’s the difference between a dynamic IP address and a static IP address?

Dynamic ip address is an IP address will change everytime you connect to internet, Static IP address is an IP address that will remain the same everytime you connect to internet.

12.  Explain what a blog is.

Short for web blog, an internet journal. Blogs are usually updated daily; they relect the personality and views of the blogger.

13.  State your answer to a person who ask you the quesion “Who owns the internet?”

Nobody owns internet, we the user of internet owns it ourself.

14.  What is B2B commerce?

Electronic sale or exchange of goos and services directly between, cutting out traditional intermediaries.

15.  List and briefly describe three kind of spyware.

o   Adware

Is kind of spyware that tracks web surfing or online buying so that marketers can send you targeted and unsolicited pop-up or other ads.

o   Browser hijackers

Change setting in your browser without your knowledge, often changing your broswer’s home page and replacing it with another web page.

o   Search hijackers

Intercept your legimate search requests made to real search engines and return results from phony search services designed to send you to sites they run.