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

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Courseware Update

(last modified: 3/10/2010)

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 2009.

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.

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Courseware Update

Lesson 2: Introduction to Internet

Technology

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.

Remove:

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:

74.206.104.14

Replace with:

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:

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Courseware Update

Lesson 2: Introduction to Internet

Technology

Location: Domain Name System (DNS) section

Second and third paragraphs under the "Domain Name System (DNS)" heading

Remove:

DNS resolves IP addresses into easily recognizable text-based names. For example, you can access the CIW Web server at IP address 74.206.104.14 by typing www.CIW-certified.com in your browser's Address box. In other words:

74.206.104.14 = www.CIW-certified.com

Replace with:

DNS resolves IP addresses into easily recognizable text-based names. For example, you can access the Certification Partners Web server at IP address

72.44.192.228 by typing www.Certification-Partners.com in your browser's

Address box. In other words:

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Courseware Update

Lesson 2: Introduction to Internet

Technology

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 www.CIW-certified.com.

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.

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Courseware Update

Lesson 2: Introduction to Internet

Technology

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.

Remove:

1. Open Mozilla Firefox and enter www.CIW-certified.com 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

Replace with:

1. Open Mozilla Firefox and enter www.Certification-Partners.com 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 2-5.

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Courseware Update

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Courseware Update

Lesson 2: Introduction to Internet

Technology

Location: Lab 2-2: Using Internet protocols in Mozilla Firefox,

Step 3

Remove:

3. Click in the Location Bar, type 74.206.104.14, then press ENTER. This step also accesses the CIW Web site and displays its home page in the browser window.

Replace with:

3. Click in the Location Bar, type 72.44.192.228, then press ENTER. This step also accesses the Certification Partners Web site and displays its home page in the browser window.

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Courseware Update

Lesson 2: Introduction to Internet

Technology

Location: Domain Name Servers section

First paragraph under the "Domain Name Servers" heading

Remove:

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 www.CIW-certified.com 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

74.206.104.14 from the domain name server, the CIW Web site displays on your screen.

Replace with:

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 www.Certification-Partners.com 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

72.44.192.228 from the domain name server, the Certification Partners Web site displays on your screen.

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Courseware Update

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, 74.206.104.14).

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Courseware Update

Lesson 7: Internet Services and Tools

Location: Troubleshooting Using TCP/IP Tools section

Second paragraph under the "The tracert command" heading

Remove:

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

Replace with:

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.

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Courseware Update

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.

Remove:

5. At the command prompt, type tracert 74.206.104.14 and then press ENTER. How

many hops were required to reach the www.CIW-certified.com site? Your display

should resemble Figure 7-15.

Figure 7-15: Using TCP/IP diagnostic tools

Replace with:

5. At the command prompt, type tracert 72.44.192.228 and then press ENTER. How

many hops were required to reach the www.Certification-Partners.com site? Your