Factors that affect network performance
Bandwidth Bandwidth refers to the maximum data transfer rate of a network connection. Bandwidth is measured in bits per second (bps, Mbps, Gbps). Insufficient bandwidth […]
Networks and communications
Methods to ensure the security of networks
Firewalls See firewall Anti-virus software Anti-virus software is utility software that protects computer systems from many different types of malware listed here. Password and Network […]
WiFi versions
WiFi, otherwise known at the 802.11 protocol, has had 18 versions. This page covers just four and compares the frequencies, theoretical bitrate, and security aspects. […]
Network performance
There are a number of factors that affect the performance of a network. Bandwidth Bandwidth is how much data is transferred over time. It is […]
Network Attached Storage and Storage Area Networks
Network Attached Storage (NAS) and Storage Area Network (SAN) are both types of storage available to multiple computers over a network. They provide centralised storage […]
DHCP and DNS
Dynamic Host Configuration Protocol (DHCP) Every device on a network needs a unique IP address. While these addresses can be manually assigned that is not […]
IPv4 and IPv6
IP stands for Internet Protocol. The v in IPv4 and IPv6 is Version. We use IPv4 and IPv6 for identifying nodes on a network, each […]
Error detection and correction
When sending data over a network there is a possibility of interference and therefore errors occurring in the data. Here are two methods of detecting […]
Carrier Sense Multiple Access Collision Detection and Avoidance
While you need to know CSMA/CD for the course, you should be aware it is deprecated – it is not used anymore. It is still […]
Network security
Network security can be compromised by the following: Denial of service An attacker will flood a network resource with network traffic with the aim to […]