Jawaban Essay Final Test Grade 9, 17 Maret 2011

1. 2 kind of Bus topology
    - Linear : has 2 end points
    - Distributed/Extended : has more than 2 end points
2. 4 Methods of communicating in WAN
    - Dial-up , ADSL , ISDN , Cable , Satellite
3. Problems associated with Internet
    Theft of Personal information
     Spamming
     Virus threat
     Pornography

4. Look at in the previous posting5. Pic 1 : RJ 45 or LAN cable

    Pic 2 : Shielded Twisted Pair (STP)

    Pic 3 : Unshielded Twisted Pair (UTP)

 

Internet Terms

1. Sign up : join an account
2. Sign in : process by individual access to a computer system
3. Sign up : leaving an access
4. Spam : unwanted e-mail, unsolicited e-mail
5. Encryption : translation of data into a secret code, protecting data from unauthorized 
     people
6. Compose : write new e-mail
7. Download : transfer a file from server to host , or from internet to your computer
8. Upload : transfer a file form host to server, or from your computer to the internet
9. Hacker : a skilled computer user who breaks into other people's computer to steal         
     information and corrupt data
10. E-commerce : consists of the buying and selling of products or services over electronic 
       systems such as the Internet and other computer networks
11. Teleconference : live communication that allows individuals in two or more locations to see 
      and talk to one another in a long-distance by a telecommunications system
12. Trojan horse : a virus that pretends to be a useful program. Example, you might download  
      what you think is a new game; but when you run it, it deletes files on your hard drive.
13. Worm : this virus simply reproduces itself rapidly, using up all available storage space 
      leaving no space of your data or program. This can lead to system slowdown or total 
      system failure. Example : I Love U worm
14. Software piracy : Illegal use or copying of software
15. Host : is a computer connected to the Internet or network
16. Firewall : a part of a computer system or network that is designed to block unauthorized 
       access while permitting authorized communications

MUSEUM SAYURAN

http://img156.imageshack.us/img156/5998/thevegetablemuseum07.jpg

Review 9th Feb 2011 - Answers

1. 1.       A local area network (LAN) is a computer network covering a small physical area, like a home, office, or small group of buildings, such as a school, or an airport. Maximum distance between computers is 100 m

Wide Area Network (WAN) is a computer network that covers a broad area (i.e., any network whose communications links cross metropolitan, regional, or national boundaries

A metropolitan area network (MAN) is a large computer network that usually spans a city or a large campus.Maximum distance 160 to 400 km

A hotspot is a physical location that offers internet access over a wireless LAN through the use of a shared internet connection

2. 2.      NO, hotspot is the area where computers have been fitted with wireless network technology

Wi Fi is the Wireless Network

3.  3.     Advantage of LAN

·         Help user to locate and view information faster and relevant to their roles and responsibilities

·         Make information available to employee anytime, rather than by email

·         Serve communication vertically and horizontally easily

·         User can view information and data via web-browser rather than maintaining physical document, phone list, form. This can save the business money on printing, duplicating, etc.

·         Providing the employee with “live” changes. They never out of date

4.   4. Computer performance, modem, telephone line quality, ISP

5.   5.  3 kinds of sharing in a network

Information sharing        : file, data, software

Resource sharing             : printer, scanner

Network sharing              : internet

6.6.    Standalone         : a pc that is not connected with a network

Workstation       : a pc that is connected with a network

Node                     : all computer, input peripheral, and output peripheral that connect and shared in a network

7. 7. Index page

8. 8.   Search engine

9. 9.  Webpage

1   10. Website

1   11. HTML

     12.  www.sck.ac.id

http://www.scribd.com/doc/47514796/Rapot-Sem-1-5-Kelas-9