Cloud Concepts
What is the difference between public cloud, private cloud, and hybrid cloud?
Public cloud is shared and accessible over the internet, private cloud is dedicated to a single organization, and hybrid cloud combines both.
What is Azure Virtual Machine (VM)?
Azure VM is an on-demand, scalable compute resource that allows you to run Windows or Linux workloads in the cloud.
What is Azure Security Center?
Azure Security Center is a service that provides unified security management and advanced threat protection across Azure resources.
What is an Azure resource group?
An Azure resource group is a container that holds related resources for an Azure solution. It helps organize and manage resources together.
What is the purpose of Azure Savings Plans?
Azure Savings Plans allow you to commit to an hourly spend for Azure compute resources, resulting in cost savings compared to pay-as-you-go pricing.
Explain the concept of serverless computing in Azure. Which service allows you to build applications without managing servers explicitly?
Serverless computing (e.g., Azure Functions) automatically scales, executes code in response to events, and bills based on usage.
Which Azure service provides a fully managed platform for building, deploying, and scaling web applications?
Azure App Service enables developers to create web, mobile, and API apps without managing infrastructure.
How can you configure Just-in-Time VM access using Azure Security Center?
You can configure Just-in-Time VM access to limit the exposure of Azure VMs by opening network ports only when needed for management tasks.
How do ARM templates simplify resource deployment?
ARM templates define resources in a declarative format, allowing consistent and repeatable deployments.
How can you estimate your monthly costs for using Azure services?
You can use the Azure pricing calculator to estimate costs based on your anticipated usage and specific requirements.
What does the acronym “SaaS” represent in the context of cloud services?
Software as a Service (SaaS) refers to cloud-based applications and services that users access over the internet without needing to install or maintain software locally.
What is Azure Cosmos DB, and why is it unique?
Azure Cosmos DB is a globally distributed, multi-model database service. It offers guaranteed low latency, 99.999% availability, and supports various data models.
What does Azure Compliance Manager help you achieve?
Azure Compliance Manager helps you assess and manage regulatory compliance across Azure services, streamlining audit processes.
What role do resource providers play in Azure?
Resource providers supply Azure resources (e.g., compute, storage) and enable their management.
What is the purpose of Azure Cost Management?
Azure Cost Management helps you analyze, manage, and optimize costs across your Azure resources by providing insights, budgeting tools, and recommendations.
Explain the difference between Capex and Opex in the context of cloud economics.
Capital Expenditure (Capex) refers to upfront investments in physical assets (e.g., servers), while Operational Expenditure (Opex) covers ongoing operational costs (e.g., cloud subscriptions). In the cloud, Opex is favored due to its pay-as-you-go model.
Explain the purpose of Azure Functions.
Azure Functions is a serverless compute service that allows you to run event-driven code without managing servers. It scales automatically based on demand.
How does Azure Key Vault enhance security for applications?
Azure Key Vault securely manages keys, secrets, and certificates, allowing applications to access sensitive information without exposing it directly.
Why is centralized management important in Azure?
Azure Resource Manager provides a unified dashboard to manage resources, streamlining deployment and organization.
How can you optimize virtual machines (VMs) to reduce costs?
You can resize or shut down underutilized VMs, choose reserved instances, and leverage Azure Hybrid Benefit for Windows Server or SQL Server.
Name one benefit of cloud elasticity
Cloud elasticity allows the dynamic scaling of resources based on demand, ensuring efficient resource utilization and cost savings.
What is Azure Logic Apps, and how does it enhance workflow automation?
Azure Logic Apps is a workflow automation service that connects various services and triggers based on events. It simplifies complex workflows and integrates with other Azure services.
What is the purpose of Azure Policy?
Azure Policy ensures compliance by defining and enforcing rules for resource configurations, tagging, and access control.
What is the purpose of Azure tags?
Azure tags allow you to categorize and organize resources for better tracking, cost allocation, and management.
What is the significance of Azure Reserved Instances (RIs)?
Azure RIs allow you to save costs by committing to a one-year or three-year term for specific VMs, databases, or other services.