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AZ-900 Azure Exam Which of the following statements is not true about cloud computing? IaaS, PaaS, and SaaS are examples of cloud computing service models. Cloud computing resources are usually limited to specific geographic regions. Cloud computing typically decreases your operating expenses. Three cloud computing deployment models are public cloud, private cloud, and hybrid cloud. True or false: You need to purchase an Azure account before you can use any Azure resources. False True True or false: In an IaaS environment, the cloud tenant is responsible for routine hardware maintenance. True False Azure Cosmos DB is flexible. At the lowest level, Azure Cosmos DB stores data in atom-record-sequence (ARS) format. The data is then abstracted and projected as an API, which you specify when you’re creating your database. Your choices include SQL, MongoDB, Cassandra, Tables, and Gremlin. This level of flexibility means that as you migrate your company’s databases t...