| 1: | List the five types of networking application services mentioned in this chapter. |
| A1: | Answer: File services, print services, web services, e-mail services, and file transfer services |
| 2: | Which application services effectively hide the network from the end user? |
| A2: | Answer: File and print services |
| 3: | Which application services make use of servers to hold and store data, waiting until another user is available in the network? |
| A3: | Answer: E-mail clients send e-mail to e-mail servers, who hold the e-mail, waiting until the recipient checks his mail. |
| 4: | Which application service allows a server to present multiple text, graphics, video, audio images, and sounds to the client? |
| A4: | Answer: Web services |
| 5: | In general terms, compare and contrast an enterprise network with the Internet. |
| A5: | Answer: An enterprise network is a network built for use by one enterprisein other words, one company or organization. The Internet includes almost every enterprise network, as well as Internet service providers (ISPs). |
| 6: | Does the Internet include enterprise networks, home users who connect to the Internet, both, or neither? Explain your answer. |
| A6: | Answer: The Internet includes both enterprise networks and individual users because the Internet includes any and all computers that somehow have at least one path through which to reach the rest of the Internet. |
| 7: | Explain the basic difference between a web page and a website. |
| A7: | Answer: A web page typically refers to a single pagein other words, what you see inside a browser at one instant in time. A website refers to all the web pages that a company, organization, or individual creates. These web pages are typically interconnected, allowing the user to navigate to various pages by clicking something on each web page. |
| 8: | What's a network cloud? |
| A8: | Answer: A network cloud is a cloud-looking icon that represents parts of a network for which the details are not important in the figure. It simply means "There's a network here, but that's all you need to know." |
| 9: | Compare and contrast enterprise networks and Internet service provider networks in a few sentences. |
| A9: | Answer: Enterprise networks consist of hardware and software purchased by a single company or organization. An ISP network also consists of hardware and software purchased by that ISP. The main difference relates to their purposes: The enterprise network provides network services to the people inside the company, whereas ISP networks provide services to individual users to connect to the Internet. ISP networks also provide Internet connectivity to enterprise networks. |
| 10: | What three-word term refers to the text that you need to type into a web browser to reach a particular website? What popular jargon might be used instead of that term? |
| A10: | Answer: The formal term is Universal Resource Locator (URL). Many people refer to the URL as the web address. |
| 11: | Imagine that Fred connects to the Internet using ISP1, and Barney uses ISP2. When Fred sends Barney an e-mail, to what computer does Fred send the e-mail? If the e-mail is not sent directly to Barney's computer, explain why. |
| A11: | Answer: Fred sends the e-mail to an e-mail server, typically a computer at his ISPISP1 in this case. That e-mail server forwards the e-mail to ISP2's e-mail server. Later, when Barney checks his e-mail, he retrieves the e-mail. This process allows Fred to send the e-mail, regardless of whether Fred has network connectivity to Barney at the time. |
