Cloud Computing

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What is cloud computing?

Cloud computing refers to a new class of network enabled computing hosted over the internet. Previously, we used to run applications/programs from software downloaded on a physical computer or server. Cloud computing allows us to access the same through the internet. Cloud computing allows one to access latest technologies without spending a penny on infrastructure, without exhausting hard drive storage and without necessitating an additional software. Everything can be done online which means that cloud computing can be done anywhere, anytime.

 

What are the various cloud service models?

Cloud service models are divided into three service categories.

  • IaaS (Infrastructure as a Service) model, provides the computing infrastructure, physical or virtual machines, block and file-based storage, firewalls, load balancers, IP addresses, virtual local area networks etc. thus enabling the user to outsource and build a virtual data center in the cloud. Eg: Amazon EC2, Windows Azure, Rackspace, Google Compute Engine, HPCloud.
  • PaaS (Platform as a Service) model, provides computing platforms which includes operating system, programming language execution environment, database, web server etc. on which a software can be developed and deployed. Eg: AWS Elastic Beanstalk, Apple iCloud, Windows Azure, Google App Engine, Apache Stratos.
  • SaaS (Software as a Service) model, users are provided with access to application softwares , where the service provider will install, manage and upgrade software, thus reduces the cost of licensing software. Eg: Google Apps, Microsoft Office 365, Dropbox.

 

Why we use Cloud? Do I use it?

Well, Instead of traditional on-site usage most of the business enterprises widely use cloud either directly or indirectly due to its significant advantages like cost reduction, universal access, scalability, flexibility, choice of applications, up-to-date software etc. Obviously, usage of cloud is integrated with ones like in one way or the other. For instance, If you own a smartphone, maybe once in an hour or at least once in a day you use the cloud. The most popular examples of applications which run on Cloud in our daily social life are WhatsApp, Facebook, Twitter, Emails, etc.

What are the Job Opportunities in Cloud?

The growth of Cloud computing is very fast, which enhance job vacancies chasing behind the qualified candidates. Extensive knowledge in the technology (Amazon Web Services, OpenStack, Salesforce.com or Azure) is required for most of the cloud jobs. Cloud computing jobs range from architects and developers to data scientists and more with a high salary package even if you are a fresher. You can work as Cloud Engineer, Data Engineer, Data Scientist, Cloud Architect, Cloud Developer, etc. It is very important to ensure the security of information in the cloud server, which eventually creates the opportunity for Security Engineers.

Why is cloud a big deal in the job market?

Almost 85% of cloud servers are running in Linux, of which 75% are in Red Hat. So we can easily say that Red Hat Certification can guarantee a job in the cloud, as it assures you an upper hand.

What are the Cloud Certifications available?

Red Hat, World’s leading provider of open source solutions deliver various certifications in cloud computing which are accepted globally.
Cloud Certifications