CBSE Class X

CLASS - X  WEB APPLICATION  Session 8 (INTERNET SECURITY) Q :- What do you mean by Internet Security? Why it is important? Ans :- Internet security is a branch of computer security specifically related to the Internet, often             involving browser security but also network security. Its objective is to establish rules and              measures to use against attacks over the Internet. The Internet represents an insecure channel              for exchanging information leading to a high risk of intrusion or fraud, such as phishing.             Though Internet provides valuable information and entertainment, it may leave your computer             unsecure due to many online threats. You need to ensure that your usernames, passwords,             credit card or online banking information secure as they are prone to be tracked and used by             unauthorized users. Some websites can also install Malware on the computer without user            cons

Class - X                                Subject - I.T. (402) CHAPTER - WEB APPLICATION SESSION - 6 (USING OFFLINE BLOG EDITORS) Que1:- Explain the purpose of  an Offline Blog Editor. Ans :- If you do not have an active internet connection, you can create blogs using a blog application and publish the blog whenever internet connectivity is available.  There are several free offline blog editors available that can be downloaded and installed on the local computer such as:  Qumana Windows Live Writer Blogdesk An offline blog is a free blog application that is simple and easy to use. User only need to download and Install any Offline blog editor and can use it without internet connectivity. It can be downloaded from website. Once installed, you can use the program to manage blogs. you can write, edit and save your logs here and post later on when you get internet connection. SESSION - 7 (ONLINE TRANSACTION) Que1:- What is Online Transaction? What are its benefit

CLASS - X                            CHAPTER - WEB APPLICATION SUBJECT - IT                                                      SESSION - 3,4,5                                     SESSION - 3 INTRODUCTION TO INSTANT MESSAGING Q 1:- What is Instant Messaging and IM Software ? What are its feature ?  Ans :- Instant messaging (IM) is a form of communication over the Internet that offers an instantaneous transmission of text-based messages from sender to receiver. Most instant messaging software include the option for performing file transfers, audio chat, video calling and conferencing, sharing desktops etc. apart from standard text chat. Instant messaging software is widely used for personal and commercial use. Unlike email, instant messaging happens in real-time and the response from participants can be spontaneous. Some instant messaging software allows users to view messages received when they are not logged on. These are called “Offline Messages”.For utilizing audio an

CLASS - X                          SUBJECT - IT (402) CHAPTER - WEB APPLICATION  CONTENTS :-                SESSION - 1               SESSION - 2                               SESSION - 3,4,5                             SESSION - 6,7               SESSION - 8 

Chapter :- Web Application                       Class - X                                            Session - 2 NETWORKING  FUNDAMENTALS Q :-What is Computer Networking ? Ans :- A computer network is a collection of computers and other hardware components interconnected by communication channels (cables or satellites) that allow sharing of resources and information. Q:- Explain the architecture of networking. Ans :- The design of computer network establishment is called its architecture. there are two types  of Network architecture :- (i) Peer-to -Peer (P2P) Architecture :- Network in which all computers have an equal status are called peer to peer networks. Generally in such a network each terminal has an equally competent CPU . (ii) Client - Server Architecture :- Network in which certain computers have special dedicated tasks, providing services to other computer (in the network) are called Client Server networks. The Computer (s) which provide services are