Disadvantages

Disadvantages

1. WLAN

   • 1. The speed is relatively slow compared to common wired networks. 2. Anyone can easily breakdown the password if the Wired Equivalent Privacy is not enabled. 3. Because of the interference caused by electrical devices and/or items blocking the path of transmission, wireless connections are not nearly as stable as those through a dedicated cable

2. WAN

   • 1. Setting up a network can be an expensive. 2.Once set up, maintaining a network is a full-time job which requires network supervisors and technicians to be employed. 3. Needs a good firewall to restricts outsiders.

3. Lan

   • 1. Networks are difficult to set up and need to be maintained by skilled technicians. 2. If the file server develops a serious fault, all the users are affected. 3. Special security measures are needed to stop users from using programs.

4. Bluetooth

   • 1. It can lose connection in certain conditions. 2. It only allows short range communication between devices. 3. It can lose connection in certain conditions

5. Internet

   • 1. Risk of theft of personal information. 2. Risk of viruses or malware threats. 3. Information sometime can be wrong.

6. Intranet

   • 1. Separate software might be needed for internet and e-mail. 2. It doesn't have too much information. 3. Its hard to maintain it.