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ICTWEB424 Evaluate and Select a Web Hosting Service

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ICTWEB424 Evaluate and Select a Web Hosting Service ICTWEB424 Evaluate and select a web hosting service Learner Guide © Copyright, 2015 by North Coast TAFEnow Date last saved: 13 October 2015 by Sharon Lehman Version: 1 # of Pages = 22 TAFEnow ICT team – Content writer and course adviser TAFEnow Resource Development Team – Instructional and graphic design Copyright of this material is reserved to the Crown in the right of the State of New South Wales. Reproduction or transmittal in whole, or in part, other than in accordance with the provisions of the Copyright Act, is prohibited without written authority of North Coast TAFEnow. Disclaimer: In compiling the information contained within, and accessed through, this document ("Information") DEC has used its best endeavours to ensure that the Information is correct and current at the time of publication but takes no responsibility for any error, omission or defect therein. To the extent permitted by law, DEC and its employees, agents and consultants exclude all liability for any loss or damage (including indirect, special or consequential loss or damage) arising from the use of, or reliance on, the Information whether or not caused by any negligent act or omission. If any law prohibits the exclusion of such liability, DEC limits its liability to the extent permitted by law, to the re-supply of the Information. Third party sites/links disclaimer: This document may contain website contains links to third party sites. DEC is not responsible for the condition or the content of those sites as they are not under DEC's control. The link(s) are provided solely for your convenience and do not indicate, expressly or impliedly, any endorsement of the site(s) or the products or services provided there. You access those sites and use their products and services solely at your own risk. Contents Getting Started .................................................................................................................................. i About this unit .................................................................................................................................................................... i Elements and performance criteria ............................................................................................................................. i Icon Legends ....................................................................................................................................................................... ii Topic 1 – Hosting services ................................................................................................................ 3 What is a host? ................................................................................................................................................................... 3 What is a server? ................................................................................................................................................................ 4 What is a web server? ...................................................................................................................................................... 5 What kinds of web hosting service are there? ....................................................................................................... 6 The common types of hosting ..................................................................................................................................... 7 Features and benefits from different web hosting providers .......................................................................... 9 How can I be sure the hosting service does what it says it does? ................................................................. 11 How long do I have to wait for help? .......................................................................................................................15 What kinds of web hosting client are there? ........................................................................................................16 Summary ............................................................................................................................................................................18 Getting Started About this unit This unit describes the skills and knowledge required to determine a client’s current and future internet service providers (ISPs) needs. It applies to individuals working in information and communications technology (ICT) who take responsibility for comparing and evaluating internet service provider (ISP) services, and are technically adept and proficient communicators, with a broad knowledge of internet technologies. Elements and performance criteria Elements define the essential outcomes of a unit of competency. The performance criteria specify the level of performance required to demonstrate achievement of the element. They are also called essential outcomes. Follow this link to find the essential outcomes needed to demonstrate competency in this Unit: http://training.gov.au/Training/Details/ICTWEB424 i | Page ICTWEB424_LG_V1.0 TAFEnow Icon Legends Learning Activities Learning activities are the tasks and exercises that assist you in gaining a clear understanding of the content in this workbook. It is important for you to undertake these activities, as they will enhance your learning. Activities can be used to prepare you for assessments. Refer to the assessments before you commence so that you are aware which activities will assist you in completing your assessments. Case Studies Case studies help you to develop advanced analytical and problem-solving skills; they allow you to explore possible options and/or solutions to complex issues and situations and to subsequently apply this knowledge and these newly acquired skills to your workplace and life. Discussions/Live chat Whether you discuss your learning in an online forum or in a face-to-face environment discussions allow you to create and consolidate new meaningful knowledge. Readings (Required and suggested) The required reading is referred to throughout this Learner Guide. You will need the required text for readings and activities. The suggested reading is quoted in the Learner Guide, however you do not need a copy of this text to complete the learning. The suggested reading provides supplementary information that may assist you in completing the unit. Reference A reference will refer you to a piece of information that will assist you with understanding the information in the Learner Guide or required text. References may be in the required text, another textbook on the internet. Self-check A self-check is an activity that allows you to assess your own learning progress. It is an opportunity to determine the levels of your learning and to identify areas for improvement. Work Flow Shows a logical series of processes for completing tasks. ii | Page ICTWEB424_LG_V1.0 TAFEnow Topic 1 – Hosting services As a Web Developer you will be creating and maintaining web sites on a regular basis. When other people need to see these sites, where are they placed? They could be anywhere as long as they are “hosted” on a computer connected to the internet. You could host the website yourself as “in house”, your employer could also have their own dedicated web servers, or you could outsource it and have someone else to host it for you. But before we go any further we need to ask the question. What is a host? In networking speak, a host is an end-point (a node) on the internet. It can be a large or small machine that sends or receives end-user data. Each host has its own unique IP address formed by the computer's local number and the particular number of the network it belongs to. 3 | Page ICTWEB424_LG_V1.0 TAFEnow A network host doesn’t always distribute web pages to end users but could also host video files, serve as a dedicated email server or used purely for remote backups. What is a server? Network-based or “distributed” computing has data processed on different end-points of a network. At one end-point can be a “client” computer or device, an example of this is an internet browser that sends a request for data (the web page). Another end-point can be a “server”, e.g. a web server that continuously listens for requests and responds to them with the web page(s) you requested. The client-server connection only works if the end-points share the same application layers and relevant protocols. For a standard web based client-server connection this is HyperText Transfer Protocol (HTTP). It is good to note one server can work with many clients at once and vice versa. Servers come in many different types which don’t always serve up web pages. There are servers for: > Files > Databases > Mail > Applications > DNS – Domain Name System > Game Servers. Each of these types of servers often utilise their own relative protocols depending on the purpose the server is being used for. ADDITIONAL RESOURCES RECOMMENDED 1 Follow this link for definitions of the various types of servers: > http://www.webopedia.com/DidYouKnow/Hardware_Software/2005/servers.asp 4 | Page ICTWEB424_LG_V1.0 TAFEnow LEARNING ACTIVITIES ACTIVITY 1 The Webopedia link above will have basic explanations of the protocol list below, but to see a full range of the available suites of protocols try the following link: http://www.javvin.com/protocolsuite.html Now find the correct server types for the following list protocols. > FTP (File Transfer Protocol) > SQL (Structured Query Language) > SMTP (Simple Mail Transfer Protocol) > SOAP
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