WEBVTT 1 00:00:00.630 --> 00:00:02.070 In this section of the course, 2 00:00:02.070 --> 00:00:03.480 we're going to cover the concepts 3 00:00:03.480 --> 00:00:05.490 surrounding wireless networks. 4 00:00:05.490 --> 00:00:07.080 Now, as you're watching this video, 5 00:00:07.080 --> 00:00:09.660 chances are you're already using a wireless network 6 00:00:09.660 --> 00:00:10.650 to do it. 7 00:00:10.650 --> 00:00:13.050 That wireless network could be Wi-Fi, 8 00:00:13.050 --> 00:00:14.910 or, if you're on your smartphone, 9 00:00:14.910 --> 00:00:17.490 you may be watching it over your cellular connection, 10 00:00:17.490 --> 00:00:18.360 but both of these 11 00:00:18.360 --> 00:00:20.760 are technically considered wireless networks 12 00:00:20.760 --> 00:00:22.860 that you're using to watch this video, 13 00:00:22.860 --> 00:00:25.050 so in this section of the course, 14 00:00:25.050 --> 00:00:26.130 we're going to dive deep 15 00:00:26.130 --> 00:00:28.080 into the different types of wireless networks 16 00:00:28.080 --> 00:00:29.670 and their different uses. 17 00:00:29.670 --> 00:00:31.350 Our focus in this section of the course 18 00:00:31.350 --> 00:00:33.960 is going to be on domain two, networking, 19 00:00:33.960 --> 00:00:35.640 and as we go through this section, 20 00:00:35.640 --> 00:00:38.250 we're going to be covering objective 2.3. 21 00:00:38.250 --> 00:00:40.710 Objective 2.3 states that you must be able 22 00:00:40.710 --> 00:00:43.950 to compare and contrast protocols for wireless networking, 23 00:00:43.950 --> 00:00:46.380 and we're going to cover this entire objective fully 24 00:00:46.380 --> 00:00:48.330 in this section of the course. 25 00:00:48.330 --> 00:00:49.920 Now, as we begin this section, 26 00:00:49.920 --> 00:00:51.180 we're going to first take a look 27 00:00:51.180 --> 00:00:52.980 at the different wireless frequencies 28 00:00:52.980 --> 00:00:54.870 that are used in Wi-Fi networks, 29 00:00:54.870 --> 00:00:58.230 including 2.4 gigahertz and 5 gigahertz. 30 00:00:58.230 --> 00:01:00.990 Next, we're going to move into the different wireless standards 31 00:01:00.990 --> 00:01:03.390 that you're going to encounter when working with Wi-Fi, 32 00:01:03.390 --> 00:01:07.350 including 802.11a, b, g, 33 00:01:07.350 --> 00:01:10.200 n, ac, and ax. 34 00:01:10.200 --> 00:01:11.550 Then we're going to move into 35 00:01:11.550 --> 00:01:13.560 the different types of wireless security standards 36 00:01:13.560 --> 00:01:14.940 that you may come across, 37 00:01:14.940 --> 00:01:19.290 including WEP, WPA, WPA2, MAC filtering, 38 00:01:19.290 --> 00:01:22.680 and disabling of your SSID broadcasts. 39 00:01:22.680 --> 00:01:24.780 After that, we're going to move into our coverage 40 00:01:24.780 --> 00:01:26.700 of fixed wireless options. 41 00:01:26.700 --> 00:01:29.280 This includes things like cellular, microwave, 42 00:01:29.280 --> 00:01:31.170 and satellite connections. 43 00:01:31.170 --> 00:01:33.150 Then we're going to move into different types 44 00:01:33.150 --> 00:01:35.940 of short-range wireless communication protocols, 45 00:01:35.940 --> 00:01:39.000 things like NFC, or near-field communication, 46 00:01:39.000 --> 00:01:42.450 RFID, or radio frequency identification, 47 00:01:42.450 --> 00:01:46.290 IR, or infrared, MBT, which is Bluetooth. 48 00:01:46.290 --> 00:01:49.140 Finally, we're going to move into a short demonstration 49 00:01:49.140 --> 00:01:51.330 where you're going to learn how to configure a small office, 50 00:01:51.330 --> 00:01:53.250 home office wireless network, 51 00:01:53.250 --> 00:01:54.690 so let's get started 52 00:01:54.690 --> 00:01:56.730 with our exploration of wireless networks 53 00:01:56.730 --> 00:01:58.230 in this section of the course.