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Microsoft Azure Fundamentals (AZ-900) Exam Guide

Q: Which cloud service category allows for renting IT infrastructure (servers, storage, networks) on a pay-as-you-go basis?

IaaS (Infrastructure as a Service).. IaaS is the most flexible cloud service level. It allows you to rent virtual hardware, leaving you responsible for managing the operating system and applications.

Q: True or False: Azure regions are always composed of at least three Availability Zones.

False.. Not all Azure regions support Availability Zones. An Availability Zone is a physically separate location within an Azure region to ensure high availability.

Q: Which of the following is a benefit of moving from Capital Expenditure (CapEx) to Operational Expenditure (OpEx)?

Eliminating upfront costs for physical infrastructure.. The cloud allows for moving from a CapEx model (heavy hardware investment) to an OpEx model (pay-as-you-go), providing more budgetary flexibility.

Q: Which Azure service acts as a secure vault for storing encryption keys, passwords, and certificates?

Azure Key Vault.. Azure Key Vault centralizes secret storage for applications to protect and manage them securely, avoiding clear-text passwords in code.

Q: Which tool allows for comparing on-premises infrastructure costs against savings realized on Azure?

TCO (Total Cost of Ownership) Calculator.. The TCO calculator helps organizations estimate the cost savings achievable by migrating their on-premises workloads to Azure over a given period.

The **AZ-900** certification is the ideal gateway into the Microsoft Azure universe. It validates your understanding of fundamental Cloud concepts, core Azure services, security, privacy, and pricing. It is the recommended starting point before aiming for more technical certifications.

Which cloud service category allows for renting IT infrastructure (servers, storage, networks) on a pay-as-you-go basis?

Answer : IaaS (Infrastructure as a Service).

IaaS is the most flexible cloud service level. It allows you to rent virtual hardware, leaving you responsible for managing the operating system and applications.

True or False: Azure regions are always composed of at least three Availability Zones.

Answer : False.

Not all Azure regions support Availability Zones. An Availability Zone is a physically separate location within an Azure region to ensure high availability.

Which of the following is a benefit of moving from Capital Expenditure (CapEx) to Operational Expenditure (OpEx)?

Answer : Eliminating upfront costs for physical infrastructure.

The cloud allows for moving from a CapEx model (heavy hardware investment) to an OpEx model (pay-as-you-go), providing more budgetary flexibility.

Which Azure service acts as a secure vault for storing encryption keys, passwords, and certificates?

Answer : Azure Key Vault.

Azure Key Vault centralizes secret storage for applications to protect and manage them securely, avoiding clear-text passwords in code.

Which tool allows for comparing on-premises infrastructure costs against savings realized on Azure?

Answer : TCO (Total Cost of Ownership) Calculator.

The TCO calculator helps organizations estimate the cost savings achievable by migrating their on-premises workloads to Azure over a given period.