- What are the characteristics on which a Cloud Computing Model should be selected for implementing and managing workload?
- What do you understand by CaaS?
- What is the minimal requirement to implement an IAAS Cloud?
- How is the Cloud Computing different from primitive Client-Server Architecture?
- Why should one prefer public cloud over private cloud?
- Is it cost effective to implement a private cloud rather than a public cloud and why?
- Does network topology play an important role in deciding the success of a Cloud Infrastructure?
- Is Cloud Computing an application?
- What is the use of defining cloud architecture?
- How does cloud architecture overcome the difficulties faced by traditional architecture?
What are the characteristics on which a Cloud Computing Model should be selected for implementing and managing workload?
Scalability is a characteristic of cloud computing through which increasing workload can be handled by increasing in proportion the amount of resource capacity. It allows the architecture to provide on demand resources if the requirement is being raised by the traffic. Whereas, elasticity is being one of the characteristic provide the concept of commissioning and decommissioning of large amount of resource capacity dynamically. It is measured by the speed by which the resources are coming on demand and the usage of the resources.
What do you understand by CaaS?
CaaS is a terminology given in telecom industry as Communication as a Service. The Voice-over-Ip (VoIP) follows a same delivery model. CaaS can offer the enterprise user features such as desktop call control, presence, unified messaging, and desktop faxing. In addition to the enterprise features, CaaS also has a set of services for contact center automation that includes IVR, ACD, call recording, multimedia routing (e-mail and text chat), and screen pop integration.
What is the minimal requirement to implement an IAAS Cloud?
The minimal requirement to implement are basically three things:
- OS to support hypervisor or a hypervisor.- Preferably open-source software like Linux and Xen hypervisor
- Networking topology and implementation.- Public Network or Private network with Level 3 Switch
- Selection of cloud model as per requirement or business.- SaaS, Software as a Service- PaaS, Platform as a Service- CaaS, Communication as a Service
How is the Cloud Computing different from primitive Client-Server Architecture?
The primitive Client-Server architecture is a one-to-one communication between only two physical machines namely Client machine and Server machine(datacenter). Whereas the cloud computing, infrastructure is similar at the client side but varies at server-side. The server-side contains a main Cloud Controller that forwards the request to its worker machines known as Nodes. These nodes are a grid computing machines that dedicate all its resources to process application. These nodes are maintained in clusters. So a cloud computing infrastructure is quite complicated on server side that processes all the requests from clients and send the result back.
Why should one prefer public cloud over private cloud?
The cloud technology is the best example of sustainable technology that utilizes all the computing resources. If a person needs to setup a quick business and wants to host its website, he need not require to setup a full-fledged private cloud. Rather he should go for public cloud hosting that provides different pay-per-use subscriptions, which could actually result in being economical. There are numbers of vendors that provide such services like godaddy.com etc.
Is it cost effective to implement a private cloud rather than a public cloud and why?
It depends on the type of business that demands a cloud setup. Suppose if the subscription on a public cloud for an application that is to be deployed on OS images is proving to be more costly then to buy some new datacenters and maintain them. Then obviously the a private cloud has to be setup instead of a public cloud. This public clouds follow utility billing methodology as electricity bill for example.
Does network topology play an important role in deciding the success of a Cloud Infrastructure?
The network topology plays a vital role in selecting a cloud model and success of that model
Public Cloud These are the platforms which are public means open to the people for use and deployment. For example, google, amazon etc. They focus on a few layers like cloud application, infrastructure providing and providing platform markets.
Private Cloud Organizations choose to build their private cloud as to keep the strategic, operation and other reasons to themselves and they feel more secure to do it.
Hybrid Clouds It is the combination of public and private cloud. It is the most robust approach to implement cloud architecture as it includes the functionalities and features of both the worlds.
Is Cloud Computing an application?
The Cloud Computing is not an application but it is a methodology that deploys application in a custom fashion on a server. It can be also learned as an advance model of client-server architecture that is highly flexible, scalable and configurable. This architecture leverages high performance out of machines with quite an ease of management.
What is the use of defining cloud architecture?
Cloud architecture is a software application that uses on demand services and access pool of resources from the cloud. Cloud architecture act as a platform on which the applications are built. It provides the complete computing infrastructure and provides the resources only when it is required. It is used to elastically scale upon down the resources according to the job that is being performed.
How does cloud architecture overcome the difficulties faced by traditional architecture?
Cloud architecture provide large pool of dynamic resources that can be accessed any time whenever there is a requirement, which is not being given by the traditional architecture. In traditional architecture it is not possible to dynamically associate a machine with the rising demand of infrastructure and the services. Cloud architecture provides scalable properties to meet the high demand of infrastructure and provide on-demand access to the user.
