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Unit 9 Computer Networks P3 P4 £5.49
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Unit 9 Computer Networks P3 P4

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This is what you need to get all marks for unit 9 computer networks p3 and p4. I achieved full marks on the course last year. If you need any help after your purchase I am more than happy to do what I can.

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  • October 13, 2018
  • 2
  • 2017/2018
  • Essay
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Unit 9 - Computer Networks
Key Components and Interconnection Devices (P3, P4)

The key components used in networking:
Key components: network devices; interconnecton devices; connectors and cabling; sofware

Network devices: workstatons; servers e.g. print, mail, fle, web, proxy; others e.g. network
interface cards (NIC); features and functons

Interconnecton devices: equipment e.g. router, switch, wireless access points; purposes, features
and functons of each

Connectors and cabling: leased line; dedicated line; media types e.g. STP, Category 5, coaxial, UTP,
fbre optc; wireless; mobile technology; cablecconnecton standards

Sofware: network operatng system; virus checker; frewall; other e.g. email client

Commercial systems: sofware e.g. Mac OSX, Linux, Windows

Typical Network Services (P5)

Telecommunication services:
 communicaton e.g. email, internet relay chat (IRC), discussion boards
 remote access e.g. via mobiles, remote desktop, social networking

File services:
 fle transfer
 fle sharing

Application services:
 applicaton sofware e.g. database, web, proxy
 shared resources e.g. printng, storage space

Voice over IP (VoIP);
 mobile working
 authentcaton e.g. users, hardware

Business Risks and Securing Systems (M3)
Business risks: loss of service; loss of business or income e.g. through loss of customer records;
increased costs; loss of confdentality; compromised data integrity; security issues e.g. malware
(hostle, intrusive, or annoying sofware or program code), viruses, Trojans, worms, spyware, adware

Securing a system: passwords, authorisaton permissions and access control lists; backing up and
restoring; encryptng; others e.g. biometrics; physical security e.g. CCTV, locks, frewalls; security risk
levels; sofware protecton e.g. antvirus, intrusion detecton systems.

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