Para calcular a classificação geral de estrelas e a análise percentual por estrela, não usamos uma média simples. Em vez disso, nosso sistema considera coisas como se uma avaliação é recente e se o avaliador comprou o item na Amazon. Ele também analisa avaliações para verificar a confiabilidade.
The book, I believe, is a good start to learning the basics of Azure. I'm almost half way through the book but noticing errors/inaccuracies. For example, on page 9 it references a SaaS, IaaS, and PaaS pyramid diagram, in that order, but a few pages later it references it in the wrong order. The subject is comparing these three different services with which one has more control to less control. I wrote in the correct order directly in the book. Another page references a diagram number that isn't in the book. It's on page 42 (chapter 2), if anyone is interested. Figure 10-10 doesn't exist, I assumed the book is referencing diagram 2-10. The book only has 4 chapters so it doesn't make sense to reference Figure 10-10. The first exercise in the book has you creating a VM using Ubuntu Server. It skips a couple of steps, which turn out to be necessary to complete the creation of the VM. You must choose the size that you want to use for the VM, that section isn't covered at all and if you try to create the VM it will fail validation because a size wasn't chosen during the configuration.
I have been working in IT for 20 years and have tons of cloud training. I saw a few diagrams that were 100% wrong. The book takes a 180 turn into machine learning labs which has absolutely nothing to do with the test. This book alone won’t be enough to pass the AZ-900 test, but it’s a start to learning the basics of Azure.
I still haven't taken the test for this yet so not sure how helpful it will be. What I don't like about it so far is that it's not broken up into smaller pieces with review questions and/or labs. It's hard to retain so much information especially terms and technology you never heard of.