• The cost of an Azure VM depends on various factors like its size, OS, and region.
• Even though we create two VMs of the same size and OS they incur different charges if they are in a different region.

CapEx refers to money that is spent upfront on infrastructure hardware such as routers, switches, and servers.

Examples:

• Deploying your own data center.​
• Azure Reserved VM Instances.​

Refer to blog for more details: AZ-900 CHEATSHEET

OpEx is your operating costs, the expenses to run the day-to-day business, like services and consumable items that get used up and are paid for according to use.

In the case of Azure Reserved VMs, we are paying upfront for reserving our VM, thus becomes a CapEx.

Refer to blog for more details: AZ-900 CHEATSHEET

CapEx refers to money that is spent upfront on infrastructure hardware such as routers, switches, and servers.

Examples:

• Deploying your own data center.​
• Azure Reserved VM Instances.​

Refer to blog for more details: AZ-900 CHEATSHEET

CapEx refers to money that is spent upfront on infrastructure hardware such as routers, switches, and servers.

Examples:

• Deploying your own data center.​
• Azure Reserved VM Instances.​

Refer to blog for more details: AZ-900 CHEATSHEET

• ELASTICITY - Ability to acquire resources as you need them and release resources when you no longer need them.
• Understand Elasticity with a simple real-life example -What is Elasticity?

• Scalability is used to meet the static increase in the workload.
• Scalability is long-term planning and adopted just to deal with an expected increase in demand.
• Understand Scalability with a simple real-life example -What is Scalability?

In the event of a failure, the Azure infrastructure (the Fabric Controller) reacts immediately to restore services and infrastructure. For example, if a virtual machine (VM) fails due to a hardware failure on the physical host, the Fabric Controller moves that VM to another physical node based on the same hard disk stored in Azure storage. Azure is similarly capable of coordinating upgrades and updates in such a way as to avoid service downtime. So, Azure is fault-tolerant.

• Understand Fault Tolerance with a simple real-life example -What is Fault Tolerance?

• Agility: Speed and flexibility in allocation and deallocation of required resources. 
• Ability to the deployment of required resources and services in minutes without manual administration of provisioning or de-provisioning processes.

It's a basic definition question. 

• Scalability: Ability to allocate and deallocate resources to support the desired workload at any time.​
• Agility:  Scale Quickly​
• Elasticity: Auto-Scaling​
• Fault tolerance: Ability to maintain system uptime while physical and service component failures happen

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It's a definition question.

It's a definition question.

It's a definition question.

It's a definition question.

Although Cloud computing provides numerous services. The most common services provided by the Definition of cloud computing are Storage, Networking, Compute Power, and Analytics.