Azure Fundamentals

What is the fundamental concept of Cloud Computing?

• Storing data on personal computers.

• Delivering computing services over the internet.

• Using physical servers in an office.

• Developing software applications offline.

Answer explanation

Cloud computing is defined by the delivery of computing services—including servers, storage, databases, networking, software, analytics, and intelligence—over the Internet (“the cloud”).

Which of the following is NOT a characteristic of Public Cloud?

• Owned by a cloud service provider.

• Resources are shared with multiple users.

• Organizations have complete control over hardware.

• Accessed over the internet.

Answer explanation

In a Public Cloud model, the cloud provider owns and manages the infrastructure, not the organizations using it.

What does CapEx stand for in cloud economics?

• Cloud Application Expenditure

• Capital Expenditure

• Compute and Execution

• Capacity Expansion

Answer explanation

CapEx refers to the upfront spending of money on physical infrastructure, which is typically reduced in cloud computing by moving to OpEx.

Which of the following is an example of SaaS (Software as a Service)?

• Azure Virtual Machines
  

• Microsoft Office 365

• Azure App Service

• Azure Kubernetes Service (AKS)

Answer explanation

SaaS provides ready-to-use software applications over the internet. Microsoft Office 365 is a suite of applications accessed directly by users.

What is the primary purpose of an Azure Region?

• To manage user accounts.

• To provide global regulatory compliance.

• To group datacenters in close proximity for low latency.

• To handle billing for Azure services.

Answer explanation

Azure Regions are made up of one or more datacenters in close proximity, designed to provide low latency and regional availability.

In the Shared Responsibility Model, who is ALWAYS responsible for the information and data in the cloud?

• The Cloud Provider (e.g., Microsoft)

• The Customer

• Shared between the provider and customer

• Depends on the service model (IaaS, PaaS, SaaS)

Answer explanation

Regardless of the cloud service model, the customer is always responsible for their data, its classification, security, and management.

What is the key benefit of using Availability Zones in Azure?

• Reduced cost of storage.

• Increased network bandwidth.

• Protection against datacenter-level failures.

• Simplified user management.

Answer explanation

Availability Zones are physically separate datacenters within an Azure region, designed to provide resilience against datacenter failures.

Which Azure service provides the most control and customization, making it suitable for lift-and-shift migrations?

• Azure App Services

• Azure Functions

• Azure Virtual Machines

• Azure Container Instances

Answer explanation

Azure Virtual Machines (VMs) are IaaS, offering total control over the operating system and infrastructure, ideal for migrating existing applications with minimal changes.

What is the primary advantage of using VM Scale Sets?

• Enhanced security for individual VMs.

• Automatic scaling of virtual machines based on demand.

• Lower cost for running virtual machines.

• Simplified patching of virtual machines.

Answer explanation

VM Scale Sets allow you to automatically increase or decrease the number of VM instances based on resource needs, ensuring optimal performance and cost efficiency.

What is the purpose of Azure Resource Groups?

• To manage billing across multiple subscriptions.

• To organize and manage related Azure resources as a single unit.

• To control access to Azure services at a global level.

• To monitor the performance of virtual machines

Answer explanation

Resource Groups are containers that help you manage and aggregate Azure resources in a logical and organized way.