Computer Science, asked by SHUBHAmshri822, 1 year ago

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Answered by LuckyYadav2578
2
1)
communication channel :-
co axial cables :- consist of a solid conductor running vo axual indide a solid or braidedour annular conductor. the space filled with dielectric insulating materia.

twisted pair :- a twisted pair consist of a pair insulated conductor that are twisted together.

fiber optic :- this carries signals in the form of fluctuating light in a glass or plastic cable. sn optical fibre cabke consists of a glass or plastic core surrounded by cladding of a similar material but with lower refractive index

wireless :- microwaves & satellite channel use electromagnetic broadcast in open space.

2)
there are two type of tag in html
◆ empty tag
◆ container tag

3)
satellite communication :- it is a unguided media. Transfer information at much higher speeds than cabling. it works on frequency.

4)
HTTP :- hyper text transfer protocol
FTP :- file transfer protocol
SMTP:- simple media transfer protocol


....... dear if any problem in under then you can ask in comment.....i hope it helps....☆...● :)
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