Chapter 10: Communication

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Security and Password protection.To increase security in emails: -

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ØUse strong password  - e.g. contain a combinations of letters, numbers & symbols.

ØChange password on a regular basis.

ØUse spam filters to remove suspicious emails.

ØRun anti virus and anti spam software at all times

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Netiquette

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internet etiquette.

Front

Online Netiquette

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1.Don’t be abusive.

2.Don’t send spam.

3.message- clear and brief

4.Message posts are public in most cases & can be read by everyone.

5.Check spelling and grammar.

6.Respect people’s privacy.

7.Forgive people’s mistakes

8.Don’t use CAPITAL LETTERS to highlight comments.

9.Don’t plagiarise – always acknowledge quotes used.

10.Don’t use too many emoticons. 

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Used of Email group -

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ØEasier  to send out multiple emails if all address are group together.

ØMarketing purposes - Companies and organisations can group people together – specific target group.

Ø‘Spammers’ – create groups by buying people’s address from companies.

ØMeetings – companies use it to setup meetings. Ensure everybody is always invited to attend.    

Front

Characteristics and effects of spam

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oAny unsolicited email sent over the internet is regarded as spam.

oOften sent to multiple recipients – from annoying to dangerous  email-  spam can contain viruses or be part of a phishing scam .

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The main disadvantages of Spam email

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» It uses up people’s time.

» It generally annoys people.

» It uses up valuable bandwidth on the internet, slowing it down

» It can have viruses attached or even be part of a phishing scam.

» It can clog up users’ inboxes.

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Definition of an intranet

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Acomputer network based on internet technology but designed to meet the internal needs for sharing information within a single organisation or company.

Reside behind a firewall & are only accessible:

» internally to members of the company, or

» to people given various levels of access who are external to the company

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Why use intranet:

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 Safer – less chance of external hacking / viruses. 

 Possible to prevent external links (certain websites). 

 Can ensure that info. available is specific to their needs.

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Internet protocols

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set of rules agreed by the ‘sender’ & ‘recipient’ when data is being transferred between devices

Front

Internet Protocol examples

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HTTP

HTTPS

 

FTP

 

SSL/TLS