Cover

Table of Content

  1. DESCRIBE Azure CLOUD SERVICES
  2. Understanding Azure Cloud Computing
  3. Benefits of Azure Cloud Computing
  4. Cloud Computing Models and Responsibilities
  5. Public, Private, and Hybrid Cloud Models
  6. Networking Concepts for AZ-900 Exam
  7. Understanding Azure Virtual Networks:
  8. What is Load Balancers?
  9. What is VPN Gateway?
  10. What is Content Delivery Networks (CDN)?
  11. Network Security & Defence in Depth:
  12. What is Azure Firewall?
  13. Azure Web Application Firewall (WAF) and Network Security Groups (NSGs)
  14. Application Security Groups (ASGs):
  15. Authentication & authorization for azure AD
  16. Security, Tools and Features
  17. Azure Governance and Methodologies
  18. Azure Monitoring and Reporting Options
  19. Compliance and Data Protection Standards in Azure

 

 

DESCRIBE Azure CLOUD SERVICES

✓ Identify the benefits and considerations of using cloud services

Identify the advantages and factors to consider when utilizing cloud services, including recognizing the benefits of cloud computing such as High Availability, Scalability, Elasticity, Agility, and Disaster Recovery.

Identify the distinctions between Capital Expenditure (CapEx) and Operational Expenditure (OpEx).

Describe the consumption-based model.

DESCRIBE CLOUD SERVICES

✓ Describe the differences between categories of cloud services

Elaborate on the variations among categories of cloud services.

  1. Describe the shared responsibility model.

  2. Describe Infrastructure-as-a-Service (IaaS).

  3. Describe Platform-as-a-Service (PaaS).

  4. Describe Software-as-a-Service (SaaS).

Identify a suitable service type based on a particular use case.

DESCRIBE CLOUD OBJECTIVES

✓ Describe the differences between types of cloud computing

Provide an overview of the variations between types of cloud computing.

  1. Describe cloud computing

  2. Describe Public cloud

  3. Describe Private cloud

  4. Describe Hybrid cloud

Compare and contrast the three types of cloud computing.

The initial objective in the Microsoft Azure AZ-900 Certification Exam entails fundamental cloud concepts. These concepts serve as the groundwork for comprehending why organizations opt for cloud computing and the array of services available within Azure. These concepts encompass the diverse cloud computing models in Azure, the economic advantages of adopting Azure, and the three primary service categories in Azure, which are software-as-a-service (SaaS), infrastructure-as-a-service (IaaS), and platform-as-a-service (PaaS).

To commence, we will delve into the realm of cloud computing.

Understanding Azure Cloud Computing

Microsoft presently provides three distinct cloud computing solutions: Microsoft Azure, Microsoft 365, and Microsoft Dynamics 365. Microsoft Azure, the subject of AZ-900 Certification Exam coverage, offers an extensive array of cloud services. These services encompass server-based and end user–oriented computing services, database services, analytics, artificial intelligence, networking, infrastructure, and more.

Note Microsoft's second cloud offering, Microsoft 365, primarily caters to end-user Software as a Service (SaaS) solutions like Windows, Office, SharePoint, and OneDrive. Microsoft Dynamics 365 encompasses applications for enterprise resource planning and customer relationship management. Notably, the AZ-900 exam does not cover Microsoft 365 and Microsoft Dynamics 365.

Both of Microsoft's cloud offerings empower organizations to relinquish the need for housing their computing infrastructure, which they would traditionally self-manage. In most cases, larger organizations maintain their own servers, networking equipment, and other IT resources within a data center, a facility designed exclusively for housing servers, IT hardware, and related infrastructure. Some organizations operate their data centers, while others opt to engage third-party data center providers to host their IT equipment and resources.

Smaller organizations typically rely on third-party data centers or establish server rooms within their facilities, essentially serving as compact, in-house data centers.

Cloud solutions like Azure provide organizations with the capability to transition some or all of their servers, networking equipment, and other IT resources to data centers managed by external providers. In Azure's case, Microsoft possesses and maintains multiple data centers worldwide to host resources for organizations of all sizes. The management of these resources then becomes a shared responsibility between the organization and Microsoft, contingent upon the extent of what Microsoft is hosting and the services the organization is utilizing in Azure.

Regardless of the specific arrangement or the extent of services hosted in the cloud, the decision to offload these resources to a cloud provider like Microsoft offers various advantages, which will be detailed in the following section.

Benefits of Azure Cloud Computing

Embracing a cloud computing model brings forth numerous advantages, encompassing both financial savings and streamlined human resources. This section delves into these primary benefits.

Economic Benefits Traditional IT infrastructure, including hardware and related resources, can entail substantial costs. In an on-premises model where an organization self-manages its IT infrastructure, whether within its own data center or a third-party facility, the organization shoulders expenses for hardware, maintenance, support, and associated costs. These costs are typically amortized over several years, sometimes exceeding the hardware's useful life. This expenditure is categorized as capital expenditure (CapEx), signifying an organization's investment in acquiring or maintaining fixed assets. Organizations often meticulously budget their capital expenditures, necessitating a yearlong budgeting process to establish the CapEx budget and adhering strictly to it.

With Azure, Microsoft assumes responsibility for the capital expenditures required to uphold and expand the service. By utilizing Azure services, organizations replace these capital expenditures with operational expenditures (OpEx), representing monthly costs for running their operations. For instance, instead of procuring a license for Microsoft Office for each user (a capital expense), the organization pays a monthly per-user fee for Microsoft 365 (an operational expense). Instead of incurring a substantial upfront cost for a perpetual license, the organization spreads the expense over a monthly basis.

Transitioning from a capital to an operational expenditure model serves to eliminate sizable upfront expenses associated with deploying hardware, licenses, support contracts, and other resources. This operational model not only bypasses these substantial upfront outlays but also facilitates cost distribution throughout the year. Additionally, it permits organizations to correlate expenses with headcount, meaning that if an individual departs from the organization, the corresponding operational cost also diminishes (or is seamlessly reassigned to a new resource).

Another economic boon of cloud computing is the principle of economy of scale. In this scenario, a cloud provider can procure substantial quantities of hardware at a discount and extend these savings to its customers. For example, if your organization needed to replace five aging servers, the cost of acquiring these servers would be considerable. However, Microsoft acquires servers in large quantities, reducing the cost per server significantly, making it much more affordable than purchasing the same equipment individually. This mirrors the concept of purchasing a case of canned beans at a warehouse store; per can, a case of 24 is considerably less expensive than purchasing a single can. This is the essence of economy of scale.

Storage offers another illustration of economy of scale. As cloud providers like Microsoft acquire large volumes of storage at a significant discount, these savings are transferred to their customers. Consequently, the storage you obtain from Microsoft is typically far more cost-effective than the storage and related infrastructure you would acquire independently. Just like the canned beans scenario, the cost is distributed across numerous customers, further reducing the cost for each customer.

Impressum

Verlag: BookRix GmbH & Co. KG

Texte: Mamta Devi
Bildmaterialien: Mamta Devi
Cover: Mamta Devi
Lektorat: Richa Shukla
Korrektorat: Ajay Singh
Übersetzung: Kamta Prasad
Satz: Himesh Pathak
Tag der Veröffentlichung: 30.10.2023
ISBN: 978-3-7554-5926-2

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