Cloud Computing

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Cloud Computing
Training and Placement

With top global organisations adopting and harnessing the power of the Cloud, skilled Cloud professionals are in high demand, now more than ever. Cloud Computing is undoubtedly th he most sought-after skill in today’s business environment.

Cloud Computing

What is Cloud ?

Just a overview of Cloud

The cloud enables anyone with an internet connection to access IT resources on-demand, such as those consumed by cloud-based applications. The basic resources available are compute, storage, and networking, all of which are needed for a business critical application to deliver a full experience.

“The cloud” refers to servers that are accessed over the Internet, and the software and databases that run on those servers. Cloud servers are located in data centers all over the world. By using cloud computing, users and companies don’t have to manage physical servers themselves or run software applications on their own machines.

Businesses use four different methods to deploy cloud resources. There is a public cloud which shares resources and offers services to the public over the Internet, a private cloud which is not shared and offers services over a private internal network typically hosted on-premises, a hybrid cloud which shares services between public and private clouds depending on their purpose and a community cloud which shares resources only between organisations, such as with government institutions.

Overview Of Cloud Computing

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What is Cloud Computing?

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A simple definition of cloud computing involves delivering different types of services over the Internet. From software and analytics to secure and safe data storage and networking resources, everything can be delivered via the cloud.

If you’re unsure about what Cloud Computing is, you are probably among the 95% of people that are already using cloud services, like online banking and social networks, but don’t realize it.

Cloud Computing is the use of hardware and software to deliver a service over a network (typically the Internet). With cloud computing, users can access files and use applications from any device that can access the Internet.

For businesses, cloud computing means improved collaboration and productivity, as well as significant cost reductions. It means better data protection, improved availability, and expanded access to cutting-edge technologies.

Physical vs Virtual server

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  • Physical Server

Physical Server

A physical server is a piece of equipment on which data is stored and read. This may be located onsite in your server room, or it could be stored at a colocation facility (a data center) with a trusted vendor. Virtualization is the act of placing multiple “virtual servers” on physical equipment. This allows physical server resources to be split between multiple workloads for maximum efficiency and cost savings

The Pros and Cons of Physical Servers

Physical servers are generally owned, managed, and maintained by your company’s staff.

Pros of Physical Servers

  • Your IT team has full access to your dedicated server resources 24/7/365, which can be advantageous for high-demand or business-critical operations.
  • Depending on your needs, the server may be located onsite or in a conveniently-located colocation facility.
  • Your IT staff can fully customize and configure the server to your specifications and business requirements.

Cons of Physical Servers

  • Relatively high cost of server purchase, maintenance, and in the case of hardware failure, replacement.
  • Your IT staff will be responsible for setup, configuration, and maintenance on a continual basis.
  • You may need to hire a contractor or vendor for help if you have difficulty with configuration or repairs.
  • Users cannot scale storage in small increments once you reach the maximum workload, since you purchase and own the hardware.
  • Requires physical or colocation space.

  • Virtual Server

Virtual Server

Virtualization typically occurs in the cloud or on servers that are owned, maintained, and located offsite. Hiring a hosting vendor who offers secure cloud services is the most common way that organizations switch to virtualization.

The Pros and Cons of Virtual Servers

Pros of Virtual Servers

  • Fewer upfront costs, since you are not required to purchase hardware.
  • Potential for lower lifetime costs on configuration and maintenance.
  • Access to expert assistance on setup, configuration, maintenance, and software licenses.
  • Reduced need for in-house IT talent.
  • Potential to consolidate servers and increase workload efficiency.
  • Reduced environmental footprint, due to shared workloads.

Cons of Virtual Servers

  • Potential for higher recurring monthly costs, as opposed to higher upfront investment.
  • Possible issues with application compatibility, which are best discussed with a knowledgeable vendor.
  • Not all vendors are amenable to scaling your agreement up or down in small increments, which largely depends on vendor policies and service level agreements (SLAs).
  • You are no longer independently in control of your physical server and the applications running on them.

Data Center

What is Data Center?

At its simplest, a data center is a physical facility that organizations use to house their critical applications and data. A data center’s design is based on a network of computing and storage resources that enable the delivery of shared applications and data.

What defines a modern data center?

Modern data centers are very different than they were just a short time ago. Infrastructure has shifted from traditional on-premises physical  servers to virtualized infrastructure that supports applications and workloads across pools of physical infrastructure and into a multicloud environment.

In this era, the modern data center is wherever its data and applications are. It stretches across multiple public and private clouds to the edge of the network via mobile devices and embedded computing. In this constantly shifting environment, the data center must reflect the intentions of users and applications.

Why are data centers important to business?

In the world of enterprise IT, data centers are designed to support business applications and activities that include:

  • Email and file sharing
  • Productivity applications
  • Customer relationship management (CRM) and enterprise resource planning (ERP)
  • Big data, artificial intelligence, and machine learning
  • Communications and collaboration services

 

Training and certification

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