Sharing of internet connection
Sharing of files, documents and data
Sharing of printers/peripheral devices
System failures – server or terminals affect multiple users
Security of files / user privacy
Overload of sharing – reduction in speed and processing power
Expensive to install
Administrative time and maintenance
A network topology is the physical arrangement of the devices in a network.
A star topology has a central node with all devices connected directly to it.
A bus topology is an arrangement where all nodes are connected via a cable called the bus.
A ring topology is an arrangement where all nodes are connected in the shape of a closed loop.
Types of networks
There are three basic types of networks
All networks are susceptible on some level to malicious software (malware) such as a virus. Networks are also at risk of pernicious sites, breaches of privacy and site security, unauthorised sale and misuse of data. All these elements present a threat to people who use the internet for general purposes.
The most common issues users face when using there internet are:
Identity theft and fraud
Businesses are additionally at risk of experiencing denial of service (DOS) attacks.
The WannaCry ransomware virus was one of the most malicious and effective in the past few years. it reached its peak prominence in May 2017.
The WannaCry virus automatically locked all users data and demanded a ransom to have the lock removed.
Financially the creators are estimated to have less than $100,000 from actual ransom payments.