Internet Commerce - Tutorial Question Ch3-1

Tutorial Questions: Chapter 3

End-of-Chapter Questions (Page 188)

1. What are the three basic building blocks of the Internet? (Question 1)

Packet Switching, which slices digital messages into packets, routes the packets along different communication paths as they become available, and then reassembles the packets once they arrive at their destination.

TCP/IP, which is the core communication protocol for the internet. TCP establishes the connections among sending and receiving Web computers and makes sure that packets sent by one computer are received in the sequence by the other, without any packets missing. IP provides the addressing scheme and is responsible for the actual delivery of the packets.

Client/server Technology, which makes it possible for large amounts of information to be stored on Web servers and shared with individual users on their client computers.

2. Why isn’t the Internet overloaded? Will it ever be at capacity? (Question 7)

It is not possible for internet to be overloaded, because it is forever growing.

3. Compare and contrast intranets, extranets, and the Internet as a whole. (Question 11)

Internet: An interconnected network of thousands of networks and millions of computers, linking businesses, educational institutions, government agencies, and individuals

Intranet: TCP/IP network located within a single organization for purposes of communication and information processing

Extranet: Formed when firms permit outsiders to access their internal TCP/IP networks

4. What are some of the challenges of policing the Internet? Who has the final say when it comes to content, such as with Yahoo! France? (Question 13)

5. Compare and contrast the capabilities of Wi-Fi and 3G wireless networks. (Question 15)

3G Wireless Networks: new generation of cellular phone standards that can connect users to the Web at 2.4 Mbps

Wi-Fi:

Project (Page 189)

Q2: Locate where cookies are stored on your computer. (They are probably in a folder entitled “cookies” within your browser program.) List the top 10 cookies you find, and write a brief report describing the kinds of sites that placed the cookies. What purpose do you think the cookies serve? Also, what do you believe are the major advantages and disadvantages of cookies? In your opinion, do the advantages outweigh the disadvantages, or vice versa?

A cookie is a text-only string of information that a website transfers to the cookie file of the browser on your computer's hard disk so that the website can remember who you are.

A cookie will typically contain the name of the domain from which the cookie has come, the "lifetime" of the cookie, and a value, usually a randomly generated unique number. Two types of cookies are used on this website-session cookies, which are temporary cookies that remain in the cookie file of your browser until you leave the site, and persistent cookies, which remain in the cookie file of your browser for much longer (though how long will depend on the lifetime of the specific cookie).

Cookies can help a website to arrange content to match your preferred interests more quickly. Most major websites use cookies. Cookies cannot be used by themselves to identify you.

Source: http://www.allaboutcookies.org/cookies/