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Channel: Rodrigo Schaeffer

pan

lan

man

wan

san

professor

rodrigo schaeffer

informática

00:00:00

and now we are going to talk about the

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classification of computer networks

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by geographic scope, think about

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me if the term pan appears in a test,

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what does it mean, what does it mean,

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when can we

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say that the network is personal, think about the

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idea A personal network can only be

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that idea that enables

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communication between several devices for

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personal use by a given user,

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so imagine that I have a network here

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where there is my notebook, there is also my

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tablet, my smartphone and then I connect

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these three devices that are for

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personal use with each other to exchange data between

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my notebook, my smartphone and my

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tablet so there I formed a

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personal network because I am connecting

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computers or devices for

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personal use of a single user of a

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specific user so this is the network

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and the personal network in this case of user

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rodrigo perfect but we have a variation

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there if a test indicates what

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a w pan means this w sells wireless which

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means wireless so a w pan is a

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wireless personal network that is when I connect

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these devices for personal use of a

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specific user in a wireless connection

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for example using a bluetooth connection

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to connect my smartphone to my

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notebook and exchange data between them I

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formed a personal wireless network so I

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formed a w pan and the idea of a

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wireless network connection remembering that if w

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means wireless wireless translated

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into Portuguese it is wireless that's why w

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pan wireless personal network evolve a

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little more with me let's

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now imagine the term lan local area network a

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local network when can we

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say that a network is local when it was

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restricted to a very specific geographic location

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in the space of a room,

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it is a house, an office at most in the

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space of a building, then we have the idea

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of a LAN of a local network, so a

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geographically restricted space, that

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location, that room, that house that he

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office that building I will show

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here the idea of a local network a lan

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of a specific company that has

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servers and computers connected to

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each other within the building of that company but in the maximum space of that

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building in that specific location of that

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company so it is a lan is a

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local network, of course when we talk about

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space in more than one building, suddenly the

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company occupies several floors of a

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building and even so it will be alan it will

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be the local network of that company because

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the local network accepts the maximum space of

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a building now let's imagine the test

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charging w lan and this w as you already

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know means or forget wire there is a

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w lan it is a wireless local network then I

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show a three-story house with a

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local network

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connecting the computers wirelessly

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among themselves through a

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Wi-Fi router, in fact, it is good to say that the

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Wi-Fi standard was developed to create w lan, which

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means wireless local network, the

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wi-fi standard is very efficient in creating

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wireless local networks to create the which

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we call w lan as I show

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in the image, right, perfect folks, above

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that we would have with

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geographic coverage lover that the

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metropolitan network metropolitan area network

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which is a metropolitan network is when the

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computers are connected to each other

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but the coverage is already metropolitan region

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within the same metropolitan region or,

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for example, in different neighborhoods

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of that city, we can imagine,

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for example, computers connected in

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different neighborhoods of the same city or in the

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same metropolitan region, they can even be

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different cities, but as long as these

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cities belong to the same region

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and they also we have a

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metropolitan network imagine a company that

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has several has a headquarters and several

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branches within different neighborhoods

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of that same city imagine this

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and then a network was created to connect the

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headquarters with the branches within this same

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metropolitan region so that means

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that that company formed its redman,

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its metropolitan network, but at a

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certain point, a company decided to make

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this wireless connection and then we have

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a wireless metropolitan network, which

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we will call w, remembering that

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the w in front of it means wireless

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and that's why w mom is a

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perfect wireless metropolitan network, just

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as we have a metropolitan wireless network,

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we have w a wireless metropolitan network,

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but with the same idea,

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geographic coverage has to be within the same

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metropolitan region or within

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neighborhoods of the same city well what do we

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have above that now

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the agency play what we call a

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van that the wide area network the

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long range network the long distance network

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that precisely the idea when now the

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computers are in

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extremely distant geographical coverage in

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long distance try to imagine

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computers connected in

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city-states, different countries and even continents

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that do not belong to the same

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metropolitan region, so then we have

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a van, a long-range network of a

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long-distance network, even an

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interesting debate that we can have here

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is precisely the idea of the internet itself

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the internet the world wide web

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has computers connected to each

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other in different regions all over the world

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so it means that the internet

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by geographical scope is

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classified as a van as a

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wide area network means a

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long range network a long

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distance network, well guys, after having

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seen this we can image

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the internet actually having computers

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connected in different regions for a

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whole year, it's a grandma, it's a

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perfect long distance network, but there is a variation

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now in these concepts of

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network coverage that I I want to put as a

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special concept the part of what we are

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discussing that we will make a

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progression from pan to lan then mother and

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then we go but separate from that there is

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another concept that we call san s

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a n means storage area network

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meaning a network or a network area for

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data storage, we have one

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that commonly works together with

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other networks with a lan, for example,

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let me show you in practice

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this drawing here, I'll even make it

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smaller below to show you,

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imagine here in mine company, I have

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a local network called wool, here the

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computers connected to each other in

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that company's building have an

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application server, which is where the

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applications that the computers

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use are located within that lan, so we

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have an application server, but I

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created within this same company an

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area for

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data storage computer network mesh

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just to store the data that is

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generated in other networks and then I called

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this network area for storage of

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san a history area network and then how

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is that it works when computers

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here on the local network use an

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application server there on the

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application server there is an application that is used

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by all computers on the local network

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but when a specific computer

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decides to save a file the file

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ends up being saved in that network area

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for storage called tam which is

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an area that I created just to store

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the data or when one of these

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computers on the local LAN network

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requests a file to open instead of

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this file being stored on that

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computer, in fact this file is

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stored lanasa in the network area for

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and has an application server consults

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this file in the network area for

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storage in the am and returns this

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file to the computer on the local network, it

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is not very common in more

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corporate companies, in addition to the local network of that

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company, we have a

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application server that provides answers to applications

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that are used within the company but

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also having a network adds a

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network area just for storing data

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separate from the local network, this largely for

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efficiency reasons and also for

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security reasons, personal beauty, we already know

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so several important concepts in the

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classification of computer networks

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now let's do the test questions

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on this subject come with me and

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follow the reading of this question judge

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the subsequent item related to

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computer networks computer networks

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can be classified by their

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scope in local LAN area network

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one metropolitan area neto ivan wide

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area network right or wrong

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is it really difficult we can

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classify personal networks by bid the

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local network a metropolitan network ivan

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kingdom long range as described there

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perfectly in this question let's go to

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another question follow along with me as I read

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meets the following statements meets the

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following statements about networks and

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computers a lan is a type of

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local network that operates in a limited area such as

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a perfect store personal lan is a

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local network and operates in a limited area such as the

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space of a grocery store a

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house with a room and an office is

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perfect and there is one for lan the item 2

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mansion networks that cover large

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spaces such as a city perfect

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when it is such as a city yes

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switches in the coverage of a

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given city form a breast

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metropolitan network It's a good example, so that's

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right, three vans can

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cover

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Africa as a perfect country, folks,

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because if not, now the scope of this

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network is a country and to say that it goes beyond the

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metropolitan scope, so it's a

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long-range network, a network. long

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distance which is called divan so in this

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case one two three the three are

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very correct letter d for denmark that the

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answer for this question let's go to

00:10:22

one more follow the next one now it says

00:10:25

like this a computer network consists

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of interconnected machines sharing

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resources and information between

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mainly in places such as

00:10:34

offices, the need to connect

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with other source modules to other

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types of network structures such as mud in the

00:10:42

van w lan when a company wants to

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connect its office machines

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that are in the same city constitutes

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a network structure right at the moment

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he said that they are in the same city he

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is mentioning the metropolitan region and then the

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metropolitan region is mann

00:11:00

the bidet Brazil as we well studied

00:11:03

vania long range network w-lack is

00:11:06

wrong because they put it with m would be w

00:11:08

lan with n and then it would be a wireless local network

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but w lan with m there is wrong and the letter

00:11:15

of peace means personal network in this case

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when he said the same city he is

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giving the idea of computers in that

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city the metropolitan idea that's why

00:11:24

human fear of Brazil the answer correct

Description:

As redes de computadores podem ser classificadas por abrangência geográfica. O professor Rodrigo Schaeffer fala sobre os termos PAN, LAN, MAN e SAN. Mais cursos em: https://veonconcurso.com.br/veon-aprova-logo/

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