All language subtitles for 3. No Wire - Wireless in cisco CCNA 200 -301

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These are the user uploaded subtitles that are being translated: 1 00:00:00,950 --> 00:00:01,820 Well, hello, my friend. 2 00:00:01,840 --> 00:00:05,090 So in this lesson, we're going to learn about Wi-Fi technology. 3 00:00:05,690 --> 00:00:10,580 So I want to get started quickly because everybody's got access to Wi-Fi these days, right? 4 00:00:11,460 --> 00:00:17,640 With the development of technology in the internet, the number of options that take up a large area 5 00:00:17,640 --> 00:00:26,580 in daily life, I'd say way increases wireless, which you encounter like everywhere, is one of these 6 00:00:26,580 --> 00:00:28,770 concepts that you come across with technology. 7 00:00:29,400 --> 00:00:35,370 So the internet, which is been a well, the center of life for quite a while now, brings with it many 8 00:00:35,370 --> 00:00:41,340 innovations that are great since the concept of wireless is often referred to as Wi-Fi. 9 00:00:42,060 --> 00:00:46,320 You might have even heard this term that at some point your life. 10 00:00:48,210 --> 00:00:50,400 But I want to break it down for you. 11 00:00:51,060 --> 00:00:58,770 The basic function of wireless ports is through systems that generate radio waves, radio waves or, 12 00:00:58,770 --> 00:01:00,480 you know, ancient, right? 13 00:01:01,110 --> 00:01:07,050 So radio waves, these kind of radio waves are produced according to more than one standard. 14 00:01:07,410 --> 00:01:10,230 And they are detected by various receivers. 15 00:01:10,500 --> 00:01:12,870 And usually they're included in the system. 16 00:01:13,710 --> 00:01:18,450 In fact, many devices that you use in daily life have some sort of wireless connection. 17 00:01:18,780 --> 00:01:24,180 So they're all able to pick up on these types of radio waves. 18 00:01:24,510 --> 00:01:24,840 Right? 19 00:01:24,870 --> 00:01:25,530 Are you with me? 20 00:01:25,830 --> 00:01:26,220 Cool. 21 00:01:26,780 --> 00:01:32,310 Now this is how we can get into your local area network. 22 00:01:32,340 --> 00:01:33,810 It's via these radio waves. 23 00:01:35,220 --> 00:01:41,160 So wireless support might not always be included in the computers that you use in daily life and in 24 00:01:41,160 --> 00:01:46,680 those cases, well, its service can be used just by plugging in a little wireless adapter. 25 00:01:47,590 --> 00:01:55,390 So the parts in the wireless system include ADSL modems and wireless network adapters and access points 26 00:01:55,390 --> 00:01:56,710 and wireless bridges. 27 00:01:58,050 --> 00:02:04,590 Now, it can also be encountered in many areas, especially wireless mobile phones and computers, which 28 00:02:04,590 --> 00:02:06,870 are, of course, at the center of our lives these days. 29 00:02:07,440 --> 00:02:12,370 But generally, wireless connections are divided into when and land. 30 00:02:13,110 --> 00:02:20,010 So this kind of nomenclature w lan, which appears, well, it's just a concept of wireless. 31 00:02:20,430 --> 00:02:25,440 It's actually an abbreviation of the word wireless local area network. 32 00:02:26,010 --> 00:02:26,310 Right? 33 00:02:27,180 --> 00:02:33,180 So by using this system, which enables transactions through radio waves, information is exchanged 34 00:02:33,180 --> 00:02:34,530 over many devices. 35 00:02:35,130 --> 00:02:42,750 In fact, wireless local area networks enable information exchange in wireless environments using radio 36 00:02:42,750 --> 00:02:43,230 waves. 37 00:02:43,620 --> 00:02:44,820 Think about cell phones. 38 00:02:46,080 --> 00:02:55,170 Now, the concept presented in the form of when is known as the abbreviation of the word wide area network. 39 00:02:55,860 --> 00:03:02,670 So this wide area network is a system that is generally used under harsh conditions or in environments 40 00:03:02,670 --> 00:03:04,740 where the cable connection is insufficient. 41 00:03:04,920 --> 00:03:08,580 So you will have a wireless wide area network. 42 00:03:08,910 --> 00:03:09,240 All right. 43 00:03:10,890 --> 00:03:16,440 Now, there are such things as wireless routers and access points, and these have to be installed in 44 00:03:16,440 --> 00:03:20,760 such a way that the coverage and the signal can be easily received. 45 00:03:21,610 --> 00:03:26,980 I don't suppose you would recognize that person kind of tapping on their phone and holding it in a strange 46 00:03:27,940 --> 00:03:29,980 way, he's trying to get a signal, right? 47 00:03:31,060 --> 00:03:35,060 So what we're talking about here is defining the coverage. 48 00:03:35,230 --> 00:03:35,710 Cell. 49 00:03:36,900 --> 00:03:43,620 Right, so this is where more than one access point is required to reach a sufficient coverage area. 50 00:03:44,370 --> 00:03:49,620 So it's also possible to add an access point to your existing wireless router at home, and that'll 51 00:03:49,620 --> 00:03:50,940 improve coverage as well. 52 00:03:51,630 --> 00:03:57,240 So they were kind of the same way wireless networks will communicate with radio signals like we were 53 00:03:57,240 --> 00:03:57,840 talking about. 54 00:03:58,170 --> 00:04:04,920 So just like if you remember back in the day when we all had cordless phones, but televisions communicate 55 00:04:04,920 --> 00:04:09,930 the same way as well, as well as that old trusty radio in your car. 56 00:04:12,380 --> 00:04:17,180 Now, two way radio communication is also used in wireless networks. 57 00:04:18,360 --> 00:04:24,930 The computers wireless adapter converts the data into radio signals and sends it via an antenna. 58 00:04:25,740 --> 00:04:29,490 So a wireless router receives the signal and decodes it. 59 00:04:30,150 --> 00:04:34,500 Then the router sends the information on to the internet with a physical cable connection. 60 00:04:35,640 --> 00:04:41,010 This process also happens in reverse, right, the router receives the necessary information from the 61 00:04:41,010 --> 00:04:44,220 internet and converts it into radio signals. 62 00:04:45,090 --> 00:04:48,690 So these radio signals are then sent to the computers wireless adapter. 63 00:04:50,260 --> 00:04:54,130 All right, so that's kind of the general idea of Wi-Fi technology. 64 00:04:54,790 --> 00:04:56,770 See, I told you one piece of boring. 65 00:04:57,610 --> 00:04:58,030 All right. 66 00:04:58,240 --> 00:04:59,410 I want to see in the next lesson. 6634

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