Summary CHAPTER 13: NETWORKS (A level IT 9626)

These series of Notes are comprehensive, Detailed, Summarized and Easy to Understand. Summary CHAPTER 13: Networks Complete and in-depth slide presentation on Networks (A level IT 9626), strictly inline with the updated syllabus. We keep on updating our uploaded resources to always deliver the best Cambridge standards as well as A Level is concerned. What to expect and what you will be getting: Summarized notes/slides on Network components • We would describe the role and operations of the following components in a network: switches, hubs, wireless access points, network interface cards, wireless network interface cards, routers, repeaters, gateways, bridge, firewalls (hardware and software) and servers • describe bandwidth • describe bit rate • describe bit streaming (both real-time and on demand) • discuss the importance of bit rates/broadband speed on bit streaming • describe packet switching, circuit switching and message switching • describe optical communication/transmission methods (fibre optic, laser), their advantages, disadvantages and their typical applications • evaluate wireless communication/transmission methods (including: Bluetooth®, infrared, WiFi, radio), their advantages, disadvantages and their typical applications • explain the importance of bandwidth and bit rate when transmitting data • analyse how different types of communication/transmission media (cables, wireless, optical) govern the bandwidth available for transmitting data • describe what a protocol is and different types of protocols (including: Wide Area Network protocols and Local Area Network access protocols) • describe how the BitTorrent protocol provides peer-to-peer file sharing Summarized notes/slides on Network security • describe the security issues that could arise from networking computers • explain how security issues can be prevented on a computer network • evaluate a range of physical and software based security methods for a computer network • list the principles of a data protection act • analyse the need for a data protection act • evaluate methods for combating IT crime (including: physical security methods, biometric methods, firewalls, back-up, encryption, access rights, malware security, anti-virus, anti-spyware) Summarized notes/slides on Satellite Communication Systems • describe how satellite communication systems are used and work in data transfer systems, television and radio broadcasting systems and global positioning systems (GPS) • discuss the advantages and disadvantages of using satellites for data transfer systems, television and radio broadcasting systems, and GPS