WEBVTT 1 00:00.000 --> 00:08.510 So in this challenge, we're simply asked to answer a series of questions to 2 00:08.510 --> 00:09.120 ensure that 3 00:09.120 --> 00:14.200 we have a clear understanding of the various concepts in this skill. 4 00:14.200 --> 00:19.560 So let's go ahead and jump in with the first of our three questions. 5 00:19.560 --> 00:28.040 What is the primary purpose of the Show Control Connections command in Cisco SD 6 00:28.040 --> 00:28.880 -WAN? 7 00:28.880 --> 00:33.960 So let's go down our list here and see which one sounds like the best. WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000 7 00:28.880 --> 00:33.960 So let's go down our list here and see which one sounds like the best. 8 00:33.960 --> 00:39.600 First, to display the tunnel statistics between the edges. 9 00:39.600 --> 00:44.400 Well the control connections don't run between the V-edges, so this would be an 10 00:44.400 --> 00:45.040 incorrect 11 00:45.040 --> 00:47.000 answer. 12 00:47.000 --> 00:49.960 Display the data plane connections. 13 00:49.960 --> 00:54.590 Unfortunately these are not data plane connections, these are control plane 14 00:54.590 --> 00:55.840 connections, so that 15 00:55.840 --> 00:58.520 one is also going to be incorrect. 16 00:58.520 --> 01:03.280 Check the connection status of control plane devices. WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000 16 00:58.520 --> 01:03.280 Check the connection status of control plane devices. 17 01:03.280 --> 01:06.460 While these are connections and they are for the control plane, so that sounds 18 01:06.460 --> 01:07.040 like a good 19 01:07.040 --> 01:12.480 answer, but let's verify our last answer just to make sure it's not better. 20 01:12.480 --> 01:15.520 Verify application aware routing policies. 21 01:15.520 --> 01:17.840 Yeah, that's going to be an incorrect answer. 22 01:17.840 --> 01:22.780 This doesn't have anything to do with routing policies or being application 23 01:22.780 --> 01:23.480 aware. 24 01:23.480 --> 01:29.880 So that's going to leave, check the connection status of control plane devices 25 01:29.880 --> 01:30.800 as our best WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000 25 01:29.880 --> 01:30.800 as our best 26 01:30.800 --> 01:33.200 and correct answer. 27 01:33.200 --> 01:40.600 Next question, in Cisco SD-WAN, what does a T-lock represent? 28 01:40.600 --> 01:46.740 Now this one actually becomes fairly easy as long as we remember what T-lock 29 01:46.740 --> 01:47.620 actually 30 01:47.620 --> 01:49.440 stands for. 31 01:49.440 --> 01:53.670 Remember that this is a transport locator, and if we remember that it has to do 32 01:53.670 --> 01:54.000 with 33 01:54.000 --> 01:59.430 transport, it's pretty straightforward to just jump down here and say that 34 01:59.430 --> 02:00.200 transport WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000 34 01:59.430 --> 02:00.200 transport 35 02:00.200 --> 02:05.960 location identifier for control and data plane routing would be our correct 36 02:05.960 --> 02:06.800 answer. 37 02:06.800 --> 02:10.830 Just to look over the other ones quickly, template location configuration for 38 02:10.830 --> 02:12.480 edge devices, 39 02:12.480 --> 02:15.040 now that's not going to be correct. 40 02:15.040 --> 02:18.280 Tunnel locator, again it's not a tunnel locator. 41 02:18.280 --> 02:24.680 It's a transport locator, and this has nothing to do with tag based location 42 02:24.680 --> 02:25.720 objects. 43 02:25.720 --> 02:28.160 So this is going to be incorrect as well. 44 02:28.160 --> 02:33.540 So as we suspected, this leaves our correct answer as transport location WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000 44 02:28.160 --> 02:33.540 So as we suspected, this leaves our correct answer as transport location 45 02:33.540 --> 02:34.680 identifier for 46 02:34.680 --> 02:37.720 control and data plane routing. 47 02:37.720 --> 02:45.720 Final question, what command can verify BFD sessions between SD-WAN devices? 48 02:45.720 --> 02:49.960 So like most other commands, this is just going to be a matter of memorizing 49 02:49.960 --> 02:50.980 the command. 50 02:50.980 --> 02:55.120 We can see that all of these answers begin with show SD-WAN, so it's really 51 02:55.120 --> 02:55.840 about the 52 02:55.840 --> 02:58.160 second part of each answer. 53 02:58.160 --> 03:03.240 The correct answer is not going to be transport, that's not correct. WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000 53 02:58.160 --> 03:03.240 The correct answer is not going to be transport, that's not correct. 54 03:03.240 --> 03:07.980 Tunnels is not correct either, and BFD status, although that does certainly 55 03:07.980 --> 03:09.200 sound like a command 56 03:09.200 --> 03:12.200 that could exist, it actually doesn't. 57 03:12.200 --> 03:20.240 So that actually leaves us with show SD-WAN BFD sessions as our correct answer. 58 03:20.240 --> 03:25.240 So that concludes this challenge as well as this skill. 59 03:25.240 --> 03:28.740 So if you feel that you were unable to answer any of these questions, I would 60 03:28.740 --> 03:29.320 encourage 61 03:29.320 --> 03:34.560 you to go back and review the necessary sections in the skill above. WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000 61 03:29.320 --> 03:34.560 you to go back and review the necessary sections in the skill above. 62 03:34.560 --> 03:39.230 Otherwise, congratulations on completing troubleshooting SD-WAN cloud 63 03:39.230 --> 03:40.400 connectivity. 64 03:40.400 --> 03:44.310 I hope this has been informative for you, and I'd like to thank you for viewing 65 03:44.310 --> 03:44.560 . 66 03:44.560 --> 03:53.740 [BLANK_AUDIO]