DIFFERENTIATE BETWEEN LAN, MAN & WAN


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COMPUTER SECURITY RISKS

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Computer security risks define as any event or action that could cause a loss of or damage to computer hardware, software, data, information or processing capability. Other intruders indicate some evidence of their presence either by leaving a message or by deliberately altering or damaging data.  Any illegal act involving a computer generally is referred to as a  computer crime .  Cybercrime  refers to online or Internet-based illegal acts. Software used by cybercriminals sometimes is called  crimeware . •Per  Other intrusions fall into  seven basic categories : Hacker,  refers to someone who accesses a computer or network illegally. Some hackers claim the intent of their security breaches is to improve security. Cracker  also is someone who accesses a computer or network illegally but has the intent of. destroying data, stealing information, or other malicious action Script kiddie  has the same intent as a cracker but does not have the technical s
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TYPE OF DIRECT CONNECTION / BROADBAND INTERNET CONNECTION

1. Digital Subscriber Line - Fast direct internet access via standard telephone line. - Requires DSL modem. - Example: Streamys without WiFi  2. Cable Internet Service  - Most widely used home broadband connection - Provides high - speed internet access through the cable television network via a cable modem. 3. Fixed Wireless  - Uses radio transmission towers rather than satellites. - Not available in all areas. - Provides high - speed internet connection using a dish - shaped antenna to communicate via radio signals.  4. Satellite Internet Service  - More expensive than cable or DSL. - Provides high - speed internet connections via satellite. - A satellite dish communication with a satellite modem. 5. Fiber To The Premises  - Delivers over fiber - optic cabling all the way to the building. - Uses fiber - optic cable - Provide high - speed internet access to house and business users. 6. Cellular Radio Network - Access via m
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DIFFERENTIATE BETWEEN PEER TO PEER & CLIENT SERVER

CATEGORY CLIENT SERVER PEER TO PEER SET UP More difficult to set up Easy to set up INSTALLATION More expensive to install Less expensive to install IMPLEMENTATION Big corporations or organizations with high security data Small businesses and home users SIZE For medium and large network For small network fewer than 10 computers. OPERATING SYSTEM Needs a specific operating system such as Windows Server 2008. Does not need a specific operating system. TRAINING Needs training Does not need training
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