|2. Understand how network hardware and software components are connected.
2.1 Explain how hardware, software and addressing combine to support network communications.
2.2 Describe potential issues with computer networks.
2.3 Explain the steps required to set up and test a simple local area network.
- Hardware: network cards eg ethernet, wireless; workstations; servers eg file, printer, web; routers; switches; wireless devices
- Communication: network cabling eg fibre optics, UTP, STP, coaxial; connectors; addressing; WAN connectivity eg ADSL, ISDN, broadband
- Software: application-based eg internet browsers, firewalls, email; operating system; utility
- Issues: speed eg bandwidth, contention; costs; staff skills; down time; security issues eg unauthorised access, loss of data, malware, virus protection; backup eg recovery; hacking; firewalls
- Preparation: components eg cabling, devices, network interface cards, software
- Set up: hardware; software; security; health and safety awareness
- Simple LAN: eg peer to peer, client-server
- Faults: commonly occurring eg address conflict, network card failure, faulty cable; loss of service eg print, file, email
- Testing: functionality; connectivity; addressing
- Security: eg firewall configuration, file and folder permissions, access control, user rights
- Use: communication; transfer files; others eg allocate user rights, allocate file space