Stands for Automatic Private IP Addressing
APIPA is a DHCP fail over mechanism for local networks. With APIPA, DHCP clients can
obtain IP addresses when DHCP servers are non-functional.
APIPA exists in all modern versions of Windows except Windows NT.
When a DHCP server fails, APIPA allocates IP addresses in the private range 169.254.0.1 to
169.254.255.254.

Question:-What protocol and port does DHCP use.

Answer:-UDP protocol and 67 port in client and 68 port in server.

DOMAIN

A domain is a set of network resources (applications, printers, and so forth) for a group of users. The user needs only to log in to the domain to gain access to the resources, which may be located on a number of different servers in the network. The ‘domain’ is simply your computer address not to confuse with an URL. A domain address might look
something like 211.170.469.

Basic Input Output System

It is an essential set of programs(routines) stored on a chip on the motherboard of a computer.

It acts as an intermediary between computer hardware and its operating system without BIOS, the PC's operating system cannot be communicate with, Or take control, of the hardware.

BENEFITS OF BIOS FOR DESKTOP / LAPTOP

---- Enforcing Security

---- Hardware Monitoring

---- Operating system Booting

---- Hardware Testing

---- Hardware Troubleshooting

Uniform Resource Locator (URL) :- URL are the unique address of the available resource . A URL is divided into four parts

(a) Transfer protocol :- https://

(b) Server name :-
www.facebook.com

(c) Directory path :- /

(d) File name :- abhay maurya

Example:-
https://www.facebook.com/abhaymaurya

Learn more about internet:-

Click here :- https://bit.ly/3d2xAiI

The internet started as a united states government project in the year 1969, called the advanced research projects administration network (ARPANET).

Characteristics of internet

---- Internet is a complex network.
---- A decentralized system.
---- Composed of billions of file.
---- It is widely used.
---- Dynamic(Internet is the changing every minute of everyday. Thousands of websites and other resources are daily upload on internet).

HOW BIOS WORKS
 
----  Power On Self Test (POST)

 ---- Bootstrap Loader

 ----- Setup utility program

 ---- BIOS drivers

Learn more click here :- https://bit.ly/2KJkw5X

Impact printer : line printer

-- It is a type of impact printer.

-- Where enormous amount of material is to be printed, users need line printers.

-- Line printer, or line-at-a-time printers , used a special mechanism that can print a whole line at once.

-- They can print the range of 1,200 to 6,000 lines per minute(Ipm).Drum, Chain and band printers are line-at-a-time printers.