What Is a Public Cloud Environment?

A public cloud hosting environment is one that provides on-demand compute, storage, and networking capabilities to customers via the internet, using the cloud provider’s IT infrastructure (e.g., Microsoft Azure, AWS). In contrast with private cloud environments, most public cloud services use multi-tenant or shared environments that are created by partitioning individual servers into multiple, separate virtual machines. This allows multiple customers to securely access the same computing resources simultaneously.

Public cloud providers often operate out of massive data centers, commonly referred to as hyperscale data centers, which house thousands of servers and span tens of thousands—or even millions—of square feet. When people refer generally to “the cloud,” they are typically referring to the public cloud services model.

Cloud Models

On Premises

  • Applications
  • Data
  • Runtime
  • Middleware
  • O/S
  • Virtualization
  • Servers
  • Storage
  • Networking

Infrastructure-as-a-Service

  • Applications
  • Data
  • Runtime
  • Middleware
  • O/S
  • Virtualization
  • Servers
  • Storage
  • Networking

Platform-as-a-Service

  • Applications
  • Data
  • Runtime
  • Middleware
  • O/S
  • Virtualization
  • Servers
  • Storage
  • Networking

Software-as-a-Service

  • Applications
  • Data
  • Runtime
  • Middleware
  • O/S
  • Virtualization
  • Servers
  • Storage
  • Networking

Why Nexustek for Public Cloud Hosting Services?

NexusTek provides a seamless managed IT service that transcends your cloud and on-premises investments. When you partner with NexusTek for public cloud services, you gain access to the stellar products and services of Microsoft, with the personalized support we offer all of our customers. As our engineers possess extensive experience with Microsoft Azure and software products, they can provide you with strategic guidance on solutions that best fit your business needs and goals. NexusTek offers a diverse collection of IT services that work in tandem with cloud services:

  • Strategic consultation to help you select the right cloud model and service types to fit your business.
  • Cloud readiness assessments to ensure that even the most complex migrations proceed smoothly.
  • Managed IT services available to keep your systems running smoothly.
  • Cyber security services available to safeguard your systems and data.
  • Business continuity and disaster planning services available to prepare your business for worst case scenarios.

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Frequently Asked Questions

What Are Advantages of Public Cloud Hosting Services?

As with all cloud hosting services, public cloud solutions are attractive to businesses because they reduce or eliminate the need to purchase and maintain on-premises IT infrastructure. Because applications and data that are stored in the cloud can be accessed through the internet, cloud hosting services also make it easy for businesses to offer remote and hybrid work options to employees. In addition, public cloud services offer the following advantages:

  • Virtually Limitless Scalability: All cloud hosting services, public or private, are offered through subscription-based plans that scale easily. By simply contacting your cloud provider, you can quickly and conveniently increase or decrease the scope of your services plan. Businesses with significant growth aspirations are often drawn to public cloud services in particular because of their larger capacities. Because hyperscale public cloud providers have vast numbers of servers at their command, this allows businesses to scale their usage upward dramatically when needed.
  • Cost Effectiveness: By maximizing efficiencies in their expansive data centers, public cloud solutions are often more cost effective in comparison with on-premises and equivalents. In multi-tenant environments, public cloud providers are able to run servers at higher levels than is possible with dedicated hardware, which is more energy efficient than running servers at lower levels. Hyperscale public cloud providers also choose locations for data centers that require less energy to cool. These savings in energy costs—and other savings due to economies of scale—are then passed on to customers in the form of lower rates.
  • Compliance & Security: NexusTek’s public cloud solutions are delivered from SOC 2 Type II compliant environments, and additional compliances for specialized industries are available.
  • Reliability: Public cloud resources are extensive and widely distributed, which facilitates fast and reliable access from anywhere your employees choose to work. In addition, infrastructure redundancies across public cloud data centers result in little to no downtime.
  • Easy Migration: When managed by NexusTek’s experienced engineers, migration to the public cloud is a smooth and easy process. However, migration to public cloud environments may be a complicated process if not overseen by engineers with the requisite knowledge and tools.
  • Hybrid Compatible: Public cloud services can be combined easily with private cloud or on-premises infrastructure to create a holistic cloud solution.
  • The Latest Applications: Another attractive possibility with public cloud services is the ability to access a wide range of applications, including those on the cutting edge. Hyperscale public cloud services providers may also offer the latest in computing capabilities, such as machine learning and big data analytics.

What is the difference between public cloud and private cloud?

To understand how public cloud and private cloud differ, it is helpful to first consider what they have in common. Both private and public cloud offer on-demand, internet-mediated access to computing capabilities that are provided by IT infrastructure located elsewhere. The central difference between public cloud and private cloud emerges from tenancy practices, or who is allowed to access the IT infrastructure. In a private cloud paradigm, server access is restricted to only one customer, which is usually a business. Companies might create their own private cloud settings, housing and managing the IT infrastructure themselves. Or, companies might purchase private cloud services through a cloud hosting provider. Public cloud providers, on the other hand, typically offer multi-tenant environments, allowing multiple companies or users to access the same computing resources at the same time.

Do shared cloud hosting environments allow other users to access my company’s data?

No. In a shared or multi-tenant cloud hosting environment, virtualization allows a single server to be partitioned into multiple, separate virtual machines that handle data processing for multiple customers. However, the virtualization process executed by public cloud providers includes measures that secure each customer’s data to prevent access by other customers. In Microsoft Azure environments, each customer’s data is segregated from other customers’ data through a process of logical isolation.

Is the public cloud the same as multi-cloud?

Public cloud and multi-cloud are both terms that are used to refer to the IT infrastructure and provider services that are associated with the public cloud. A fine difference, though, is that multi-cloud refers specifically to a customer’s use of two or more public cloud providers. For example, a company may use the Azure public cloud to access Microsoft 365 while also using another public cloud provider to access a specific customer relationship management (CRM) system or accounting software. Customers often choose multi-cloud arrangements to gain access to specific software applications or to avoid becoming locked in with a single public cloud provider.

Can businesses keep some applications and data on-premises while moving other applications and data to the public cloud?

Yes, absolutely. In fact, this is a very popular model of cloud hosting services referred to as hybrid cloud. In many cases, businesses are running legacy systems in on-premises server rooms, or have sensitive or proprietary information that they wish to store onsite. In such a situation, you would work together with our engineers to develop a cloud migration plan that involves moving only specified applications and data to the cloud. As NexusTek offers public cloud services through Microsoft Azure, and both shared and private cloud services through NexusTek Cloud, your hybrid cloud hosting options can be tailored to your company’s unique needs and preferences.