Page 17 - Campus Chronicles Technical Magazine 2021

6) Maintenance: Maintenance of cloud computing • Support multiple languages and frameworks. Advantages of Cloud Computing: Disadvantages of Cloud Computing:
applications is easier, since they do not need to be • Provides an ability to "Auto-scale". As we all know that Cloud computing is trending 1) Internet Connectivity: As you know, in cloud
installed on each user's computer and can be accessed technology. Almost every company switched their computing, every data (image, audio, video, etc.) is
from different places. So, it reduces the cost also. Example: AWS Elastic Beanstalk, Windows Azure, services on the cloud to rise the company growth.Here, stored on the cloud, and we access these data through
7) Low Cost: By using cloud computing, the cost will be Heroku, Force.com, Google App Engine, Apache we are going to discuss some important advantages of the cloud by using the internet connection. If you do not
reduced because to take the services of cloud Stratos, Magento Commerce Cloud, and OpenShift. Cloud Computing. have good internet connectivity, you cannot access
computing, IT company need not to set its own 1) Back-up and restore data: Once the data is stored in these data. However, we have no any other way to
infrastructure and pay-as-per usage of resources. Software as a Service (SaaS): the cloud, it is easier to get back-up and restore that access data from the cloud.
SaaS is also known as "on-demand software". It is a
8) Services in the pay-per-use mode: Application data using the cloud. 2) Security: Although cloud service providers
software in which the applications are hosted by a
Programming Interfaces (APIs) are provided to the implement the best security standards to store
cloud service provider. Users can access these 2) Improved collaboration: Cloud applications
users so that they can access services on the cloud by improve collaboration by allowing groups of people to important information. But, before adopting cloud
using these APIs and pay the charges as per the usage applications with the help of internet connection and technology, you should be aware that you will be
web browser. quickly and easily share information in the cloud via
of services. sending all your organization's sensitive information to
shared storage.
a third party, i.e., a cloud computing service provider.
Characteristics of SaaS: 3) Excellent accessibility: Cloud allows us to quickly
Cloud Service Models • Managed from a central location and easily access store information anywhere, anytime While sending the data on the cloud, there may be a

There are the following three types of cloud service • Hosted on a remote server in the wholeworld, using an internet connection. An chance that your organization's information is hacked
models • Accessible over the internet internet cloud infrastructure increases by Hackers.
1. Infrastructure as a Service (IaaS) • Users are not responsible for hardware and organizationproductivity and efficiency by ensuring 3) Limited Control: As we know, cloud infrastructure is
2. Platform as a Service (PaaS) software updates. Updates are applied that our data is always accessible. completely owned, managed, and monitored by the
3. Software as a Service (Saas) automatically. service provider, so the cloud users have less control
• The services are purchased on the pay-as-per-use 4) Low maintenance cost: Cloud computing reduces over the function and execution of services within a
Infrastructure as a Service (IaaS): basis both hardware and software maintenance costs for cloud infrastructure.
IaaS is also known as Hardware as a Service (HaaS). It is organizations.
4) Vendor lock-in: Vendor lock-in is the biggest
a computing infrastructure managed over the internet. Example: BigCommerce, Google Apps, Salesforce, 5) Mobility: Cloud computing allows us to easily
The main advantage of using IaaS is that it helps users Dropbox, ZenDesk, Cisco WebEx, ZenDesk, Slack, and access all cloud data via mobile. disadvantage of cloud computing. Organizations may
to avoid the cost and complexity of purchasing and GoToMeeting. 6) IServices in the pay-per-use model: Cloud face problems when transferring their services from
managing the physical servers. one vendor to another. As different vendors provide
computing offers Application Programming Interfaces different platforms, that can cause difficulty moving
(APIs) to the users for access services on the cloud and from one cloud to another.
Characteristics of IaaS:
• Resources are available as a service pays the charges as per the usage of service.
• Services are highly scalable 7) Unlimited storage capacity: Cloud offers us a huge
• Dynamic and flexible amount of storing capacity for storing our important
• GUI and API-based access data such as documents, images, audio, video, etc. in
• Automated administrative tasks one place.

Example: DigitalOcean, Linode, Amazon Web Services
(AWS), Microsoft Azure, Google Compute Engine (GCE),
Rackspace, and Cisco Metacloud.

Platform as a Service (PaaS):
PaaS cloud computing platform is created for the
programmer to develop, test, run, and manage the
applications.

Characteristics of PaaS:
• Accessible to various users via the same
development application.
• Integrates with web services and databases.
• Builds on virtualization technology, so resources
can easily be scaled up or down as per the Campus Campus
organization's need. CHRONICLES 16 17 CHRONICLES
Technical Magazine Technical Magazine