Courseware Update. (last modified: 3/10/2010)

Transcription

1 Internet Business Foundations v2.0 This document contains revisions that have occurred to this course since its most recent public release. NEW VERSION RELEASE: The 2.0 version of Internet Business Foundations was released to our distribution partners in May If no material follows this section, no courseware updates exist for the 2.0 version. If you have feedback for this course, your instructor can send us your comments for inclusion in this Updates document Certification Partners, LLC. All Rights Reserved. Page 1

2 Location: Internet Protocols section Second paragraph under the "Internet Protocol version 4 (IPv4)" heading Remove the following text shown in strikethrough, and replace it with the following text shown underlined. Internet Protocol version 4 (IPv4) The creators of the Internet recognized the need for a flexible addressing system powerful enough to accommodate the enormous number of current and future users. They decided that every device on the Internet would be given an IP address, just as every house and business is given a street address. Instead of a street address format, such as 123 Main Street, a 32-bit address format is used, such as the following: Internet Protocol version 4 (IPv4) The creators of the Internet recognized the need for a flexible addressing system powerful enough to accommodate the enormous number of current and future users. They decided that every device on the Internet would be given an IP address, just as every house and business is given a street address. Instead of a street address format, such as 123 Main Street, a 32-bit address format is used, such as the following: Certification Partners, LLC. All Rights Reserved. Page 2

3 Location: Domain Name System (DNS) section Second and third paragraphs under the "Domain Name System (DNS)" heading Remove the following text shown in strikethrough, and replace it with the following text shown underlined. DNS resolves IP addresses into easily recognizable text-based names. For example, you can access the CIW Web server at IP address by typing in your browser's Address box. In other words: = DNS resolves IP addresses into easily recognizable text-based names. For example, you can access the Certification Partners Web server at IP address by typing in your browser's Address box. In other words: = Certification Partners, LLC. All Rights Reserved. Page 3

4 Location: Domain Name System (DNS) section After the fifth paragraph under the "Domain Name System (DNS)" heading Add the following Tech Note as shown underlined here. Add: One way to remember a domain name is to understand its structure, which can reveal information about the site. Businesses choose their domain names carefully so other businesses and users will be able to recall them. We will reference the CIW Web site often in this and subsequent lessons because it contains information pertinent to the course you are taking. The CIW Web site's domain name is Each domain name is unique and registered with the Internet Corporation for Assigned Names and Numbers (ICANN). When a name within a domain category (i.e.,.com) is assigned, no other organization or individual can use that name within that category. For example, no other Web server can use CIW-certified.com. However, CIW-certified.org is still available, as is CIW-certified.net Certification Partners, LLC. All Rights Reserved. Page 4

5 Location: Lab 2-2: Using Internet protocols in Mozilla Firefox, Step 1 Remove the following text shown in strikethrough and image, and replace it with the following text shown underlined and image. 1. Open Mozilla Firefox and enter in the Location Bar. This step accesses the CIW Web site and displays its home page in the browser window, as shown in Figure 2-5. Figure 2-5: CIW Web site home page in Mozilla Firefox 1. Open Mozilla Firefox and enter in the Location Bar. This step accesses the Certification Partners Web site and displays its home page in the browser window, as shown in Figure Certification Partners, LLC. All Rights Reserved. Page 5

6 Figure 2-5: Certification Partners Web site home page in Mozilla Firefox 2010 Certification Partners, LLC. All Rights Reserved. Page 6

7 Location: Lab 2-2: Using Internet protocols in Mozilla Firefox, Step 3 Remove the following text shown in strikethrough, and replace it with the following text shown underlined. 3. Click in the Location Bar, type , then press ENTER. This step also accesses the CIW Web site and displays its home page in the browser window. 3. Click in the Location Bar, type , then press ENTER. This step also accesses the Certification Partners Web site and displays its home page in the browser window Certification Partners, LLC. All Rights Reserved. Page 7

8 Location: Domain Name Servers section First paragraph under the "Domain Name Servers" heading Remove the following text shown in strikethrough, and replace it with the following text shown underlined. Domain name servers Domain name servers are servers on the Internet whose sole function is to resolve human-readable domain names into their computer-readable IP addresses. For example, when you enter into your browser's Address box, the browser contacts a domain name server to obtain the IP address related to this domain name. When the browser receives the IP address from the domain name server, the CIW Web site displays on your screen. Domain name servers Domain name servers are servers on the Internet whose sole function is to resolve human-readable domain names into their computer-readable IP addresses. For example, when you enter into your browser's Address box, the browser contacts a domain name server to obtain the IP address related to this domain name. When the browser receives the IP address from the domain name server, the Certification Partners Web site displays on your screen Certification Partners, LLC. All Rights Reserved. Page 8

9 Lesson 3: Web Browsing Location: How Browsers Work section Step 3 under the "How Browsers Work" heading Delete the following text, as shown in strikethrough. Delete: 3. Your browser communicates with a domain name server to translate the server name into an IP address (in this case, ) Certification Partners, LLC. All Rights Reserved. Page 9

10 Lesson 7: Internet Services and Tools Location: Troubleshooting Using TCP/IP Tools section Second paragraph under the "The tracert command" heading Remove the following text shown in strikethrough, and replace it with the following text shown underlined. In the following lab, you will use TCP/IP diagnostic tools to test connectivity. Suppose that your co-worker is unable to connect to the CIW-certified Web site. You can use these diagnostic tools to test her computer's connectivity. Lab 7-13: Using TCP/IP diagnostic tools In the following lab, you will use TCP/IP diagnostic tools to test connectivity. Suppose that your co-worker is unable to connect to the Certification Partners Web site. You can use these diagnostic tools to test her computer's connectivity. Lab 7-13: Using TCP/IP diagnostic tools 2010 Certification Partners, LLC. All Rights Reserved. Page 10

11 Lesson 7: Internet Services and Tools Location: Lab 7-13: Using TCP/IP diagnostic tools, Step 5 Remove the following text shown in strikethrough and image, and replace it with the following text shown underlined and image. 5. At the command prompt, type tracert and then press ENTER. How many hops were required to reach the site? Your display should resemble Figure Figure 7-15: Using TCP/IP diagnostic tools 5. At the command prompt, type tracert and then press ENTER. How many hops were required to reach the site? Your display should resemble Figure Figure 7-15: Using TCP/IP diagnostic tool 2010 Certification Partners, LLC. All Rights Reserved. Page 11