Unit 09: LANs and WANs III

(Adapted from: http://www2.rad.com/networks/1997/nettut/gls_p.html#Protocol
http://www2.rad.com/networks/1997/nettut/mainmenu.html)

 

1. Quais as principais características da placa Ethernet?

2. Responda.

a. O que é um um servidor de arquivos?

b. O que o "Repeater" faz?

c. O que são pontes (bridges)?

d. Que componente de rede é encarregado de conduzir o tráfego por rotas alternativas?


3. Vocabulário: relacione as colunas.

a. Boost encaixar-se, ajustar
b. Share deslizar, introduzir
c. Fit par trançado
d. Slip compartilhar
e.Twisted-pair aumentar, impulsionar

4. A que componentes de Hardware se referem estas definições. Você pode buscar ajuda aqui: http://fcit.coedu.usf.edu/network/glossary.htm#physical_topology

All of the user computers connected to a network .
A plug and socket connector consisting of a circular pattern of pins in a metal sleeve.
End point of a network connection.
Network cabling that consists of four pairs of wires that are manufactured with the wires twisted to certain specifications.
Transmission medium of copper wire or optical fiber wrapped in a protective cover.

 

File Servers

The file server controls the communication of information between the nodes on a network. For example, it may be asked to send a word processor program to one workstation, receive a database file from another workstation, and store an e-mail message during the same time period. This requires a computer that can store a lot of information and share it very quickly.

5.Time for a Game. Follow the link and play The Maze Networks Game.

Internet Safety: Do you know what a Firewall is?

6. Read a text on Firewalls: http://www.bbc.co.uk/webwise/guides/about-firewalls

a. O que é um firewall?

b. Qual é a localização de um firewall?

c. Quais os tipos de firewall e como eles funcionam?

d. Cite uma possível vulnerabilidade de um firewall.

e. Que cuidados você deve ter para que o seu firewall desempenhe bem a atividade de proteção de computadores?

7. Game: worm, spyware, virus, or trojan? Go to this website and find out what these words mean.

Netiquette

8. Do you know how to behave on the Net? Read the texts on Netiquette and its 10 Basic Rules. Then, answer the questions: http://www.albion.com/netiquette/introduction.html

a. Como são chamadas as regras da Internet?

b. Qual o momento decisivo para a aceitação das regras de etiqueta na Internet? O que aconteceu?

c. Qual a importância do RFC 1855 para a padronização da "Netiquette"?

d. Qual é a regra de ouro da Netiquette?

e. Quais elementos da conversação diária não estão presentes em uma conversação "online" (sem câmeras)?

9. Work in pairs.

a. Present to the class what the 10 Basic rules of Netiquette are.

Glossary: Read these definitions of "flame":

1. vi. To post an email message intended to insult and provoke.,
2. vi. To speak incessantly and/or rabidly on some relatively uninteresting subject or with a patently ridiculous attitude.
3. vt. Either of senses 1 or 2, directed with hostility at a particular person or people.
4. n. An instance of flaming. When a discussion degenerates into useless controversy, one might tell the participants “Now you're just flaming” or “Stop all that flamage!” to try to get them to cool down (so to speak).

10. True or False?
a. Os erros são intoleráveis na Netiquette.

True
False

b. Quando se está "online", geralmente você julgado pela sua raça.
True
False

c. O compartilhamento de informações é uma boa regra da Netiquette.
True
False

d. A privacidade é um "dever" na Netiquette.
True
False

11. Now, test your knowlegde of the subject by doing the quizzes.
a. http://www.albion.com/netiquette/netiquiz.html

b. http://www.carnegiecyberacademy.com/funStuff/netiquette/netiquette.html

c. Flames game: http://www.carnegiecyberacademy.com/funStuff/flamewar/fightTheFlameWar.html

Wireless

(Adapted from: http://www.homeandlearn.co.uk/BC/bcs6p1.html)

Go to http://www.homeandlearn.co.uk/BC/bcs6p1.html

1. Now answer in portuguese.

a. O que signifca a sigla ADSL?

b.O que o computador precisa para detectar o sinal de rede sem fio e quais são os dois tipos citados no texto?

c. Explique o que significa o número 802.11g?

d. Segundo o texto, como funcionam um modem e um roteador?

e. Segundo o texto, o que é o grupo britânico ElectroSensitivityUK e o que ele divulga?

f. Traduza o texto:
The group has been campaigning for some time on the issue.
Recently, people have been contacting them claiming that wireless signals in the home are causing them to fall ill.
Symptoms include nausea, exhaustion, headaches, sleepless, stomach upsets, tinnitus, short-term memory loss, and I forget what else.

Research: Pesquisa

1. Faça um relatório sobre as informações que vocês vão coletar abaixo.

In pairs, find out:

1. How many network labs does IFRN have?
2. When and what time are they open?
3. What protocol is used in IFRN?
4. How many file servers are used?
   4.1 What is the processor speed in MHz
   4.2. What is the hard disk storage?  
5. How many workstations does the DIATINF department have?
6 . What is/are the type(s) of cables used in the DIATINF department network?
7 . What is(are) the Physical topology(ies) used in IFRN?
8 . What is the network operating system used in IFRN?

 

Home
A: Plano de Ensino
B: Personal Details Form
Unit 01: Creating a Folder

Unit 02: Word Building

Unit 03: Types of Computer
Unit 04: Yahoo Account

Unit 05: Parts of a Computer
Unit 06: Keyboard and Mouse
Unit 07: LANs and WANs
A Game: Hangman
Unit 08: LANs and WANs 02

Unit 10: Designing Webpages

Unit 11: Reviewing Websites
Unit 12: Basic HTML
Ladies and Gentlemen...The Beatles
Test

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