HOTSPOT - For each of the following statements, select Yes if the statement is true. Otherwise, select No. NOTE: Each correct selection is worth one point. Hot Area:
The last one has a tricky word, It´s said "Reduce" instead "Has NOT", PaaS eliminate the administrative overhead for managing hardware like IaaS and SaaS
It seems obvious that jorgenoguerah meant "does not have". Not everyone speaks English as their 1st language.
... and he's right. "Reduce" feels tricky, but hardware questions on the AZ-900 always mean physical hardware, and by "reduce", Microsoft means "reduces managing hardware vs on-prem solutions". MS doesn't always word it well in questions.
It is reduce, because PaaS (and even SaaS) doesn't completely eliminate overhead costs for hardware, you still need computers to connect to Azure's VMs, printers, etc. You might also have a hybrid cloud, so you have to maintain your own servers
"Cloud features such as scalability, high-availability and multi-tenant capability are included, reducing the amount of coding that developers must do." from
https://azure.microsoft.com/en-gb/overview/what-is-paas/
1st one no doubt 'YES'.
2nd one I am not sure because it says 'PaaS stands for Platform-as-a-service. Rather than creating a virtual infrastructure, and installing and managing the database software yourself, a PaaS solution does this for you. You specify the resources that you require (based on how large you think your databases will be, the number of users, and the performance you require), and Azure automatically creates the necessary virtual machines, networks, and other devices for you. You can usually scale up or down (increase or decrease the size and number of resources) quickly, as the volume of data and the amount of work being done varies; Azure handles this scaling for you, and you don't have to manually add or remove virtual machines, or perform any other form of configuration.'
3rd one may be 'YES' but PaaS reduces administrative overhead of managing software. IaaS reduces overhead of managing Hardware.
I think 2nd one is yes too.
" Single databases in Azure SQL Database support manual dynamic scalability, but not autoscale. "
https://docs.microsoft.com/en-us/azure/azure-sql/database/scale-resources
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