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These are the user uploaded subtitles that are being translated: 1 00:00:00,420 --> 00:00:06,710 So we talked about cloud services, and in order to better understand what other types of cloud services, 2 00:00:07,050 --> 00:00:10,110 let's take a look at the three most common types. 3 00:00:10,290 --> 00:00:15,120 And these types are Ayas, Pass and suss. 4 00:00:15,660 --> 00:00:17,230 And let let's see what exactly are they. 5 00:00:17,640 --> 00:00:20,110 And let's begin with us. 6 00:00:20,730 --> 00:00:25,440 So I stand for infrastructure as a service. 7 00:00:25,920 --> 00:00:34,020 And what it means is that the cloud provides the underlying platform, such as compute networking and 8 00:00:34,020 --> 00:00:38,850 storage, and then the client is responsible for all the rest. 9 00:00:39,330 --> 00:00:45,870 In other words, the cloud provides the absolute minimum infrastructure and we the cloud of the cloud 10 00:00:46,170 --> 00:00:48,570 are expected to take care of all the rest. 11 00:00:49,150 --> 00:00:54,630 The most common example of us is virtual machines with virtual machines. 12 00:00:54,630 --> 00:01:01,800 The cloud provides the host machine, the networking and the disks, and the client creates the virtual 13 00:01:01,800 --> 00:01:08,610 machine or the guest machine and then installs software on it, patches it, maintains it, etc.. 14 00:01:08,730 --> 00:01:14,610 So it is the responsibility of the client to make sure that it's a virtual machine is up and running 15 00:01:14,910 --> 00:01:16,760 and the cloud has nothing to do with it. 16 00:01:17,400 --> 00:01:21,600 So this is its next one is Buzz. 17 00:01:22,290 --> 00:01:30,060 Buzz is platform as a service and with the services, the cloud provides a platform for running apps. 18 00:01:30,730 --> 00:01:36,760 That means that the cloud provides the compute, networking, storage, runtime environment, scaling 19 00:01:36,780 --> 00:01:43,530 redundancy, security updates, patching, maintenance, etc. and the client just needs to bring the 20 00:01:43,530 --> 00:01:44,260 code to run. 21 00:01:44,640 --> 00:01:50,610 So our responsibility as a client of the cloud is to develop our software and then upload it to the 22 00:01:50,610 --> 00:01:53,640 cloud and the cloud takes care of all the rest. 23 00:01:54,520 --> 00:02:00,020 The most common example of POS are, of course, Web apps with Web apps. 24 00:02:00,030 --> 00:02:06,660 The cloud provides the runtime for running the rebuffs and the client only uploads the code and then 25 00:02:06,810 --> 00:02:08,170 it just runs. 26 00:02:08,580 --> 00:02:14,220 Now, what's important to note with Path is that the client has no access to the underlying virtual 27 00:02:14,220 --> 00:02:14,670 machines. 28 00:02:15,270 --> 00:02:21,750 While with us we can and should actually access the virtual machine and make sure that everything is 29 00:02:21,750 --> 00:02:23,080 fine with us. 30 00:02:23,100 --> 00:02:25,280 We simply don't have access to this. 31 00:02:25,680 --> 00:02:32,760 It is the responsibility of the cloud to make sure the application is up and running and the last type 32 00:02:32,760 --> 00:02:34,620 of services is sus. 33 00:02:35,070 --> 00:02:42,510 Sus stands for software as a service and what it means is that it is software running completely in 34 00:02:42,510 --> 00:02:45,300 the cloud, the user or us. 35 00:02:45,510 --> 00:02:50,850 In this case, we do not need to install anything on premises or on the machine. 36 00:02:51,730 --> 00:02:58,080 The provider of the software takes care of updates, patches, redundancy, scalability, etc. We can 37 00:02:58,080 --> 00:03:04,130 only use software, but we can't and shouldn't mess with the underlying infrastructure of it. 38 00:03:04,890 --> 00:03:12,780 So the most common examples of SaaS are software such as Office 365 and Salesforce, which are installed 39 00:03:12,780 --> 00:03:16,350 in the cloud, and we as users just use it. 40 00:03:16,650 --> 00:03:21,920 We have no idea what is the infrastructure that Office 365 and Salesforce are running on. 41 00:03:22,050 --> 00:03:27,600 What are the virtual machines, what language are they developed in, what is a database and so on. 42 00:03:27,720 --> 00:03:28,980 We just use it. 43 00:03:30,750 --> 00:03:35,810 So to summarize the three types of services, take a look at this chart. 44 00:03:36,150 --> 00:03:42,690 So this chart depicts the level of control we need to have on each type of resource with each type of 45 00:03:42,690 --> 00:03:43,150 service. 46 00:03:43,410 --> 00:03:47,610 So if you will start from the left, we see that on on premises resources. 47 00:03:47,820 --> 00:03:49,620 We take control of everything. 48 00:03:50,310 --> 00:03:55,110 So if you will take a look from the bottom up, we see we are responsible for the networking, the storage, 49 00:03:55,110 --> 00:04:01,380 the server, the virtualization, the operating system, middleware runtime data and applications. 50 00:04:01,380 --> 00:04:04,350 We take control of everything which is just natural. 51 00:04:04,740 --> 00:04:07,080 These resources run on our premises. 52 00:04:07,080 --> 00:04:09,400 So of course we need to take control of everything. 53 00:04:10,350 --> 00:04:12,780 Next is the infrastructure as a service. 54 00:04:13,200 --> 00:04:19,740 And with us we see that the cloud takes control of the networking storage servers and virtualization, 55 00:04:20,190 --> 00:04:26,580 and we control everything that's above it, which is in this case, the operating system, the middle 56 00:04:26,580 --> 00:04:29,280 of the runtime data and applications. 57 00:04:29,670 --> 00:04:31,500 In other words, the virtual machine. 58 00:04:32,670 --> 00:04:39,810 With the platform as a service, we control the data and the applications, the cloud controls all the 59 00:04:39,810 --> 00:04:40,250 rest. 60 00:04:40,530 --> 00:04:46,290 So we takes control on virtualization, for example, on the middleware or the runtime, which is very 61 00:04:46,290 --> 00:04:52,140 important with platform as a service or with web apps and so on, and with software as a service. 62 00:04:52,140 --> 00:04:53,760 We control nothing. 63 00:04:53,880 --> 00:04:59,030 We just use the application, but we have no access to the underlying infrastructure. 64 00:04:59,040 --> 00:05:04,390 So as you can see, the cloud controls everything with software as a service. 65 00:05:05,070 --> 00:05:14,370 Now actually there are additional service types, such as fast functions as a service DB ACE database 66 00:05:14,370 --> 00:05:24,540 as a service doeth, which is desktop as a service iota's, which is Iot as a service, and even A.I.S, 67 00:05:24,960 --> 00:05:27,060 which is a service. 68 00:05:27,240 --> 00:05:34,980 But still the most common terms are Ayas Path and OS, and we will use it quite a lot throughout this 69 00:05:34,980 --> 00:05:35,400 course. 7486