DevNet Associate DEVASC 200-901 Official Certification Guide by Adrian Iliesiu (z-lib.org)

operating systems, storage, or network. There may be some customization capabilities, but they are usually limited to applicatio ...

owned and operated by a third party. The following are the key characteristics of a private cloud: A private cloud has dedicated ...

A public cloud supports multiple customers. Connectivity occurs through the Internet or virtual private connections. Use of a pu ...

Figure 13-5 Hybrid Cloud Community Cloud A community cloud, as shown in Figure 13-6, is unique in that it is provisioned for the ...

Figure 13-6 Community Cloud Edge and Fog Computing With the increase in IoT applications, devices, and sensors, the various depl ...

Figure 13-7 Edge and Fog Computing APPLICATION DEPLOYMENT METHODS What is IT’s value to the business if you boil it down to the ...

need more memory or CPU, however, you have to physically add new memory or a new processor, or you can transfer the application ...

server capacity was poorly utilized. The idea with virtualization is to build one large server and run more than one application ...

just because you have a virtualized infrastructure doesn’t mean you have a cloud; the big difference is in the operational model ...

more capacity, just plug in a new server, and it is added to the server pool automatically. The infrastructure deploys the appli ...

Deploying applications in a container decouples parts of the application. Consider a traditional application stack like LAMP (Li ...

separately. So instead of everything being loaded on a single virtual machine, you break off the Apache web server and PHP code ...

When writing code, you create a function that you call repeatedly at different places in the code to make it more efficient. Ser ...

Scalability: Developers don’t need to build in their own autoscaling policies or technologies. The provider is responsible for a ...

would claim that the software worked fine in testing on their laptops, so the infrastructure must be broken. The operations team ...

Figure 13-14 Dev and Ops Calendars Traditional IT service delivery is slow, manual, and often prone to errors (see Figure 13-15) ...

do software development are looking for ways to capture the efficiencies of this model to gain a competitive edge and be better ...

Figure 13-16 DevOps PUTTING DEVOPS INTO PRACTICE: THE THREE WAYS When discussing DevOps, it’s hard not to mention two very impor ...

problems occur because of the ripple effect of not knowing how everything flows and not being able to visualize all work moving ...

Quality is not a bolt-on at the end of the development and deployment process. It has to be integrated into the whole system. Wa ...