• Describe how browsers use plug-ins. See page 295. (1 point)
A plug-in is a program written by an application interface that follows a certain specification. A lot of software has plug-ins, and there are hundreds of them. For example, in IE, when you install the relevant plug-ins, the WEB browser can invoke the plug-in directly to handle certain types of files.Flash plugins, RealPlayer plug-ins, MMS plug-ins, MIDI 5 line, ActiveX plug-ins, etc. For example, Winamp's DFX is also a plug-in. There are many other plug-ins that are new to developers.
2. Explain why cookies are useful in an environment that is based on a stateless protocol, and provide some concrete examples of their use. See page 296 (2 points)
Cookies are the
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While the Session is created, the server generates the unique Session id for the Session, and the Session id is used to retrieve the created Session in the subsequent request. After the Session is created, the Session correlation method can be called to add content to the Session, which will only be saved in the server, and only the Session id will be sent to the client; When the client sends a request again, will this Session id, after the server receives the request will be based on the Session id to find the corresponding Session, and used again. Formally, the user's state is maintained.
3. Describe the advantages and disadvantages of type of Web page development tool discussed in this chapter. See pages 297. (2 points)
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Web Tool Advantages Disadvantages asp Can quickly complete site application No debug mechanisms php A good security Unable to realize commercialization application development.
Asp.net Language is flexible, and support the object-oriented features of complex. Database connection complex. jsp Strong scalability. A lack of systematic data.
4. Create a short tutorial explaining how to create, test, and post a Web page using a text editor such as Notepad or TextEdit. See page 299. (1 point)
Web page editing software provides a menu option, it can be released automatically HTML document and related document.Web page editing software provides a menu option, it can be released automatically HTML document and related document.
The first versions of WWW ((what most people call “The Web”))) provide means for people around the world to exchange information between, to work together, to communicate, and to share documentation more efficiently. Tim Berners-Lee wrote the first browser (called WWW browser) and Web server in March 1991, allowing hypertext documents to be stored, fetched, and viewed. The Web can be seen as a tremendous document store where these documents (web pages) can be fetched by typing their address into a web browser. To do that, two im- portant techniques have been developed. First, a language called Hypertext Markup Languag (HTML) tells the computers how to display documents which contain texts, photos, sounds, visuals (video), and animation, interactive
In computing, utility programs (in English: plugins) or plug –INS are add- one or extensions leads to more tasks and functions.
2. Using your web you should create a rough draft using your ideas. You should double space your rough draft so you will have room for corrections.
Server state can be divided into two part : the stateful and stateless server. The stateful server is that when a client open a file the server gives that client an unique identifier and stores client’s information into its memory. Although this method can improve performance, however, stateful server is generally be avoided in distributed system. On the other hand, stateless server uses totally different mechanism that the server identifies the file information and client position in each request but save nothing into its memory. The advantage is that it is easier to use fault tolerance on stateless server.
And then finally, within Firefox is a classic tool called Web Developer that gives a lot of data and information that anyone
8. Yes, this record includes a session ID. The purpose of the session ID is to provide the SSL session a unique identifier.
Applications member with embedded caches become a part of the distributed system as peer-to-peer members. Each cache member directly communicates with other cache member.
1. The client and/or server can crash, and if the server isn’t stateless, there’s likely to be a significant loss of information (Dordal, 2016).
A computer and a server are usually two unique and separate devices and each are customized to handle specific functions and purposes. For example a web server will not need any type of display or monitor and can be located anywhere. But when it comes to a data server or client, there is typically a need for some form of display monitor so information can be reviewed and tracked. It is not uncommon in some occurrences that a device can function both as a computer and a server for the same application. This also can hold true for a application act as a client to other server for various other
Cookies are used to collect the information about your visit to the website. This information can be used in many ways for the multiple devices to monitor and maintain the information about the visitors to our website. Some visitors may set the browser not to accept the cookies or notify when you receive the cookies for deciding whether to accept the cookies. If you do not accept the cookies then you will not experience any visit orelse you have to subscribe the service offerings on this website. These cookies play an important role for providing the good customer experience.
In the past native applications had some capabilities which were missing in the web area. This function can store data on the client. This is the good way to replace cookies. An alternative proposed by the World Wide Web Consortium (W3C) is called Web Storage. The Web Storage contain of Local Storage, so I will explain the Local Storage here.
In today’s era of technology, many people are concerned about internet privacy. Most concerns are usually sparked by misinformation. One piece of technology that is most misunderstood is the cookie and its uses.
c. In your document explain the purpose of different software utilities which is available. Explain how software utilities can improve the performance of computer systems (P3, D1)
Site Management Software: Web site management includes such things as uploading HTML files, showing a graphical view of a site, checking for bad links, etc.
Abstract – Today, there are millions web application or web app on the internet, including app market, such as Amazon app store, Apple Store, Chrome App Store, etc. The web application is server-based application, and client no need to install the software in their local pc or laptop. User just need to use compatible browser to access the web application at anywhere and anytime. In fact, the web application still a form of software. To develop a successful software, an appropriate software development method is critical. Because, it is a guide book to monitor the development life cycle throughout the development project. In this work, two popular methods will