课程: Microsoft Azure Fundamentals (AZ-900) Exam Tips

Virtual machine services - Azure教程

课程: Microsoft Azure Fundamentals (AZ-900) Exam Tips

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Virtual machine services

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- Be sure to know when to use virtual machines in a cloud solution and also be prepared to get some questions about that in your AC 900 exam. For instance, I'm going to click on create and then I'm going to navigate to the compute category and select one of those templates, say window server, and finally create. So I strongly suggest do you understand the different options that you have when creating a virtual machine? Of course, I need to set the name, say VM one or something. And one of those options that is quite important for the AC 900 exam is discs because you can get a question along the lines of you have many virtual machines created with the same size. Would they cost the same at the end of the month? Well, actually the answer is going to be no because those virtual machines, it doesn't matter if you're using the same size because those virtual machines could be using different disc types. So for instance one virtual machine could be using a premium SS D and another one could be using an H D D or something. So because of this fact those virtual machines are going to cost differently at the end of the month. Okay, let me go back to the resource group because I'm not going to deploy this virtual machine and let's say virtual machine skill set. This is another service for creating virtual machines. However, virtual machine skill sets let you create and manage a group of identical load balanced virtual machines. So this is great for creating a cluster or something of virtual machines. So again, you need to set the name and select some options. I strongly suggest you understand the different options that you have. Okay, so as you can see this is quite similar to the virtual machine template. However, here you're creating a number of virtual machines, okay? And finally, be sure to understand availability sets which are designed to ensure that virtual machines get staggered updates. Okay, let's go to the practice questions. You plan to deploy some virtual machines. Applications running on the virtual machines need to continue working after a single data center failure. Be careful about that. Okay? Data center failure. You plan to deploy the virtual machines to two virtual machines skill sets. Does this meet the goal? Well, actually, it could be meeting the goal, however it doesn't say anything about availability zones. So this could be no since it's not mentioning anything about availability zones. Okay, next question. If you create two virtual machines with the same size each virtual machine will always cost the same. Remember what I told you, the answer is no because the discs could be different. Okay - Next one. If you stop a virtual machine you still have to pay for storage costs. And here the answer is going to be yes because it doesn't matter if the virtual machine is stopped you still have to pay for the storage account that is being used by the virtual machine. So be careful about that. Okay?

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