In this article, I describe the two terms On premise and Cloud computing. This topic newly included in the CCNA exam 200-301. The terms on premise and cloud are represented two different terms from each other. For any computing work the basic requirements are space, power, computer hardware etc. After availability of these basic requirements, a business or company can be established.
The basics of Local Area Network LAN are very similar to networking basics. There are endpoint devices, networking devices, some common protocols used by devices.
Local area network LAN connects the computers and devices locally with each other via switch or WAP. A Local area network LAN created to share the resources and information within a small network. Local area networks created to share the resources and information within a small network. LAN may be established in a building or in a small campus. In a general way, we can say that in a LAN all devices are physically accessible.
Nodes or End Devices in small office home office SOHO
Nodes is an important term in networking basics for CCNA. The Nodes are the equipment which is connected with some networking devices like hub or switch. The Nodes may be servers, computers, printers, smartphones, etc. Nodes are generally identified by network addresses or IP address.
In a small office home office SOHO devices able to exchange information with each other with the help of a switch, router, etc. The shared resources may be any application, videos, images, email, data storage, printers etc. Sharing of resources in a network done via flowing of network packets. Nodes are the computers, smartphones in a small office home office SOHO.
Data Packets flow in small office home office SOHO
The data flow in the form of Data Packets in a small office home office SOHO. Data Packets are the main thing to understand in a network. Packets are generated and flow with the help of networking devices. The packet size is defined by the networking protocols. The flow and control of packets control by the protocols used in the network.
Actually, the information divided into the packet at the source and transmitted. When the same packets received at destination packets are reassembled and reform the information. this process is known as data transmission in a Local Area Network LAN. The flow of packets depends on the bandwidth of media. Media for sharing information may be OFC, Cat6, WiFi, Bluetooth, etc.
Connectivity medium for small office home office SOHO
The medium used to connect the network nodes is called transmission media. Transmission media are of various types. Some common media are electrical cable, Optical fiber cable, Wireless etc. Ethernet is the common media use for connectivity of networks. It is IEEE 802.3. Ethernet works on electrical and fiber both medium.
Types of small office home office SOHO
There are many works which are not required the physical appearance of a person. Most of them are a technical business. Online web services become very popular in today’s life. Online coaching or tuition is a very common small office home office type business. You need only a good connectivity internet connection and you can connect with anybody throughout the world. Some most famous SOHO business are writers, coaching, web design, software development, blogging etc.
The above said job can be done from home. Some construction types job can also done from home by providing the person to someone who need it. Some construction type jobs are plumbing, carpenters, electrician etc. The person who need these services can search online and you can provide these persons to the seeker. Similarly some other occupation can be done from home like doctor, accountants and engineers etc.
On Premise establishments
It belongs to a setup which is established at own space like small office home office. First thing you need to establish the data center is space. The space is sufficient and should be properly isolated from any public dealing. The space should have the air conditioning system to keep cool the room and the devices placed there. To run a complete independent setup you need power supply for 24×7. There should be power backup like UPS and alternative generator also required. So these are the basic requirements before going to install the hardware in the data center on premise.
After the arrangement of these things, we can install some hardware of servers and computers. To do that we need separate separate team of different fields. Networking team provide the connectivity to all the computers and servers. The infrastructure team provide the installation of different hardware like servers, storage etc.
After installation of hardware and proper connectivity now the part of software comes. You need database servers, application servers and report servers. So you need some software developers and database administrator for this purpose. The operating system and other softwares should be licensed to avoid piracy act. Till now you can understand how much man power and other things required for establish an On premise data center.
The most important part is security of our database and other servers. You need some network security experts and antivirus for all the system. I think you understand how much difficult is this task to establish own On Premise data center.
So it is a very big task to establish and maintain on premise data center. The costs required to manage and maintain all the system at on premise became very high. Some big companies offer cloud computing which provides paid services to establish small business.
Some big IT companies like Microsoft, google and amazon etc provide the facility to hosting the application and maintain them. Big companies provide the required space for the application and bandwidth to access the application on payment basis. The company take responsibility of data security and other anti hacking activities. The benefit is that you just need a good speed internet connection only.
The servers provided by the cloud computing are virtual machines. Cloud computing provides many types of connectivity like web browser based, file transfer and direct remote access of servers. With cloud computing you do not need to update the operating system and other softwares manually. The hosting company itself do these primary task on regular basis.
Deployment of On Premise and Cloud computing
There is a very big difference in deployment of On Premise and Cloud computing. On Premise need every thing to deployed manually at your own space. In cloud computing the company provides you the service after deployment of all resources. The company which hosting your application and database also responsible to manage and maintain the software and hardware. But in On Premise you have to maintain the things manually which is not so easy. You need many different man power to manage and maintain On Premise data center.
Cost for On premise and Cloud computing
Cost depends on your requirement of infrastructure. In case of On Premise you have to purchase every stuff which is required to you. In case of cloud computing you have to pay for only the services which are required for your business or purpose.
Maintenance of On Premise and Cloud computing
Each infrastructure require maintenance time by time. Maintenance include the task like updation and up-gradation of softwares, backup of database and application, disaster recovery etc. In case of On Premise you need to maintain the stuffs manually. Bu in cloud computing all the regular tasks are responsibility of the clouding hosting company. Also you do not have access to do such things in cloud computing.
Security concern with On Premise and Cloud computing
Security is always important part for any business or company. The security may be physical security of hardware, security from virus and malwares and the most important security of your own data base. The scene is same here in case of On Premise you have to complete the above task manually by your own employees. In Cloud computing the responsibility of security tasks is of cloud hosting company.
Summary of On Premise and Cloud computing
A user can see the pros and cons of both the On Premise and Cloud computing. As per your requirement you can choose the best one for your business. I recommend to use the cloud computing for any small or large business model.
Source: CNA tutorials