Write short note on the following: HTTP, Bandwidth, Bluetooth, DNS, Data transfer rate

Q. Write short note on the following:

(a) HTTP

(b) Bandwidth

(c) Bluetooth

(d) DNS

(e) Data transfer rate

Answer: -

(a) HTTP: - The HTTP (Hypertext Transfer Protocol) protocol consists of two fairly distinct items: the set of requests from browsers to servers and the set of responses going back to the other way.

(b) Bandwidth: - Bandwidth of a channel is the range of frequencies available for transmission of data through that channel. Higher the bandwidth, higher the data transfer rate. Normally, bandwidth is the difference of maximum and minimum frequency contained in the composite signals. Bandwidth is measured in Hertz (Hz).

(c) Bluetooth: - Bluetooth is a short-range wireless technology that can be used to connect mobile-phones, mouse, headphones, keyboards, computers, etc. wirelessly over a short distance.

(d) DNS: - A way to translate a URL (domain name) into IP address.

(e) Data transfer rate: - Data travels in the form of signals over a channel. One signal carries one or more bits over the channel. Data transfer rate is the number of bits transmitted between source and destination in one second. It is also known as bit rate. It is measured in terms of bits per second (bps).