The biggest disadvantage of packet switching, which transfers digital information in discrete blocks rather than in a continuous stream, is having data arrive in bundles that must be reassembled at the reception point. When packets are routed through various network adapters, buffers and switches, they can arrive at their destination out of their original sequence. This makes the technology less than ideal for applications such as voice-over-Internet.
An alternate method of delivering data is circuit switching, which requires a point-to-point and continuous connection between transmission and reception. An example of circuit switching is the telephone call. Packet switching is cheaper because the user pays a fee per unit of data while circuit switching is charged by connection time. For this reason, packet switching is preferred for transmitting data while circuit switching is the preferred method for voice.
The biggest impediments to packet switching for voice applications are latency (delay) and poor voice quality, because packets containing voice signals can arrive at the destination (listener) at various times and out of order. With packet switching, blocks of data seek the most efficient routes for transmission as circuits become available, which is economical for transmitting large amounts of data. The Internet is based on packet switching, but most corporations have a hybrid system employing both methods of transmission.Learn More
A packet sniffer is a network tool used by technicians to identify and analyze problems with the network. A packet sniffer can also be utilized by hackers to mine data, such as identity information. Packet sniffers come in both hardware and software forms.Full Answer >
The importance of packet switching is that it is more economical than using private lines, especially if the amount of traffic between the two terminals does not require a dedicated circuit. Packet switching is also more economical than data when the data communication sessions are shorter than the minimum time for a chargeable call. Packet switching is the technique of sending data in small chunks called packets.Full Answer >
Disadvantages of using the Internet are loneliness, lack of face-to-face communication, poor conflict resolution, diminishing interpersonal skills, overdependence on technology, mood swings and physical problems such as painful wrists and arms and obesity. Potential financial loss is another possibility. People who use the Internet to carry out banking and other forms of financial transactions are at a risk of losing their money, as hackers are always on the prowl.Full Answer >
A wired network is a network connection that connects devices to other networks or the Internet using cables. One of the main disadvantages of a wired network is running cables in difficult areas through ceilings, walls and floors. The cables also need to be run from one computer to another, a process which can be time consuming.Full Answer >