Network Security And Performance Flashcards
Security issues with open networks
Open networks are typically less secure than private networks. All data on an unsecured network is sent unencrypted. This means that anyone who intercepts the data that is sent across the network can read and understand it. This includes passwords and credit card numbers for example.
WPA encryption (Wi-Fi protected access) should be used with Wi-Fi networks to prevent any data from being understood if it’s intercepted.
Performance issues with ad hoc networks
Network performance can suffer as a result of the volume of data being transferred across it. If there are many users on the same network, each downloading a video, performance is going to be very slow. Mobile hotspots support up to 11 Mbps (megabits per second) whereas standard Wi-Fi supports 54 Mbps or higher. Mobile speeds are increasing constantly and 5G aims to offer a much faster data transfer rate which can also cope with many more users.
