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CLASS -5, SUBJECT-COMPUTER, Chapter 9- Communication services of Internet, Short question answerQ1 What is ARPANET?, , A1 ARPANET was the first computer network and a step towards the, creation of Internet., , Q2 Define the term Internet., A2 Internet is a vast network that connects computers all over the world., Q3 Give any two services of the Internet., A3 (i) Video Calling (ii) = Email, Q4 Expand FTP., A4 File Transfer Protocol., Q5 What is Skype?, A5 Skype is a very popular program for video calling., Long question answerQ1 Write any four advantages and limitations of emails., A1 Advantages, 1. Email is a fast communication method to deliver messages., 2. Email services are inexpensive., 3. It gives immediate feedback., , 4. There is no need of pen and paper to send emails., , Sp

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Limitations, 1. Email is impersonal., 2. Need of hardware and software to send mail., 3. Spam email, 4. Alteration of message formats by operating system., , Q2 Describe the video calling service of the internet. Also define its, types., , A2 Video calling is a useful method of conducting live conference, between two or more people. A video call is of two types, Point -to- point video call- In this two persons talk to each other from, two different locations., , Multipoint video call- In this more than two people talk to one another, from multiple locations., , Q3 What is FTP? Desribe., , A3 FTP stands for File Transfer Protocol which is commonly used to, download programs and other files to your computer from other servers., , Q4 Define the following, , a. Social networking- Social Networking is the use of internet-based, social media programs to make connections with friends, family etc., , b. Chat room- An online site in which people can chat online., Q5 Write any two advantages of video calling., A5 1. Video calling is fast and convenient for meetings., , 2. It saves time and money., , , , Sp