Networking Essentials 2nd. Ed. Corrections Part 2 (187879)

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Page xxxvi: Support Section Missing

On page xxxvi, the following Support information should be added to the bottom of page:

Every effort has been made to ensure the accuracy of this book and the contents of the companion disc. Microsoft Press provides corrections for books through the World Wide Web at the following address: If you have comments, questions, or ideas regarding this book or the companion disc, please send them to Microsoft Press using either of the following methods:

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Page 30: Lab 2 Directions Are Incorrect

Use the following directions to correctly proceed through Lab 2:

Exercise 1: Sharing a Directory:

1. From the Start Menu, open Windows Explorer. Open the Networking Essentials directory and select Lab2.exe.
2. Right-click the My Computer icon, and then select Explore. This opens the Windows NT Explorer.
3. In the left pane, click the C: drive to open it.
4. Now right-click the DOS directory and select Sharing.
   
   NOTE: For purposes of this simulation, DOS is the only directory that can be shared.
   
   The DOS Properties window appears. Select the Sharing tab and click Shared As:
5. Notice that you have several options in the Shared As: section.
   
   Share Name -- Shows the name users specify to connect to the shared directory. In order for Microsoft MS-DOS-based computers to connect, the name must conform to the MS-DOS 8.3 naming convention. On a Windows NT-based network, the name can be up to 12 characters long.
   
   By default, the share name is the name of the selected directory.
   
   NOTE: Normally, you can type a different name in the Share Name: box. However, if you change the name of the share, when someone accesses the share, they will use the share name and not the directory name.
   
   Comment -- The comment is optional and is displayed with the Share Name in the Connect Network Drive dialog box.
   
   User Limit -- Sets the maximum number of users who can connect to the shared directory at one time. By default, no limit is set.
   
   Permissions Button -- You can control access to a shared directory by setting permissions on it. Permissions are covered in a later lesson.
6. Accept the default name DOS for the share by clicking OK.
   
   Notice the small hand holding the DOS folder. This indicates that the folder is shared.

Exercise 2: Stop Sharing a Directory

1. Right-click the DOS directory and click on Sharing.
   
   The DOS Properties window appears. Select the Sharing tab and click Not Shared:
   Notice that the small hand holding the DOS folder has disappeared.
2. On the File menu, click Exit Lab 2.

Page 80: Thicknet Cable Does Not Use BNC Connectors

On page 80, in the first paragraph, first sentence change:
"Both thinnet and thicknet cable use connection components, known as a BNC (British Naval Connector), to make the connections between the cable and the computers."

To:
"Thinnet cable uses connection components, known as a BNC (British Naval Connector), to make the connections between the cable and the computers."

Page 93: Typographical Errors

1. On page 93, under Fiber-Optic Considerations, the statement is made:
   "Do not use fiber-optic cable if you:
   ...are under a tight budget. (Note: pricing for fiber optic cable is
   competitive to hi-end copper cabling.)"
   
   Change: 'competitive to hi-end'
   
   To: 'competitive with high-end'
2. Also on Page 93, the statement is made:
   "...Do not have the expertise to properly install it and connect devices
   to it. (Note: fiber optic cable is increasingly easier to work with.
   Polishing and terminating techniques require fewer parts and less expertise.)"
   
   Change: 'teminating'
   
   To: 'terminating'

Page 97: Clarification For Question 3

On page 97, question 3 should specify "some devices" rather than "each", as the documentation indicates on page 95.

Change:
"3. Each device on a _________ network can transmit and receive at the same time."

To:
"3. Some devices on a _________ network can transmit and receive at the same time."

Page 99 Contradicts Page 103

Page 99 has a table entitled "IBM Cabling System". It indicates: "IBM Type 3" "Voice Grade Cable" "Consists of four solid, unshielded, twisted-pair 22 or 24 AWG cables".

Page 103 States: "IBM has its own cabling system complete with its own types. IBM Type 3 cabling, for example, is a voice grade, shielded twisted-pair cable otherwise known as STP."

Microsoft Press is aware of this contradiction and will post further information when available.

Errors in Cable Summary on Page 102 and CD-ROM Demo6

Slide 11 of Demo 6 (located in the CD-ROM /Demos folder) shows a Cable Comparison Summary chart which is also displayed on page 102 of the book. There are several discrepancies between the text in the two different charts.

Specifically:

Under category Thinnet coaxial (10Base2):
Usable cable length:
in book: "185 m or about 607 feet"
in CD: "185 m (600 feet)"
The actual conversion is 607 feet.

Under category Twisted-Pair (10BaseT):
Usable cable length:
in book: "100 m or about 328 feet"
on CD: "100 m (330 feet)"
The actual conversion is 328.08 feet. The book is correct.

Transmission rates:
in book: "10MBps, 4-100 MBps"
on CD: "4-100 MBps"
The actual range is 4-100 MBps.


Ease of installation:
in book: "very easy; possibly already installed"
on CD: "very easy"
The book is correct. Many buildings already include twisted-pair cable.

Under category Fiber-optic:

Cable cost:
in book: "More expensive"
on CD: "Most expensive"
Both should read "most expensive."

Usable cable length:
in book: "2k or about 6562 feet"
on CD: "2k (6500 feet)"
The actual figure is 6561.68 feet.

Transmission rates:
in book: "100 MBps or more (>1GBps)"
on CD: "100 MBps or more"
Both should read "100 MBps to 2 GBps"

Flexibility:
in book: "Very Flexible"
on CD: "Not flexible"
Both should read "Not Flexible".

Ease of installation:
in book: "Easy to install"
on CD: "Difficult to install"
Both should read "Difficult to install."

More Errors In Cable Summary On Page 102

The Twisted-pair (10BaseT) column needs to be broken into to two separate categories: Unshielded Twisted-pair (UTP) and Shielded Twisted-pair (STP).

Unshielded Twisted-pair

Cable cost: Least expensive
Usable cable length: 100 meters or about 328 feet
Transmission rates: 4 - 100 Mbps
Flexibility: Most flexible
Ease of installation: Very easy; possibly already installed
Susceptibility to interference: Very susceptible to interference
Special features: Same as telephone wire; often pre-installed in buildings
Preferred uses: Smaller sites on budget

Shielded Twisted-pair

Cable cost: More than Thinnet coaxial
Usable cable length: 100 meters or about 328 feet
Transmission rates: 16 - 500 Mbps
Flexibility: Less flexible
Ease of installation: Moderately easy to install
Susceptibility to interference: Good resistance to interference
Special features: Supports higher transmission rates than UTP
Preferred uses: Token Ring in any size

A couple of other corrections are also needed:

Under the Thinnet coaxial column, change the Cable Cost from:
"More than twisted-pair"

To:
"More than UTP"

Under the Thicknet coaxial column, change the Ease of Installation from:
"Easy to install"

To:
"Moderately easy to install"

Page 144: Text Error

Page 144, under the subheading Exercise 1: Matching:

Change: "One item in Column B will not be used..."

To: "Two items in Column B will not be used..."

Page 147: Correction To The Answer For Exercise 3, Part 2

Page 147, Exercise 3, part 2:
Add "f. Onboard microprocessor" to the list of possible answers.

Page 149: Diagram Correction

In the diagram on page 149, computer G should be connected to the Hub as outlined
on page 148. However, the line that connects G to the Hub was left off the diagram.

Page 150: The Distance From J To The Hub Exceeds 328 Feet

Page 150, first sentence:

Change:
"The distances for A, B, C, D, E, F, and G to the hub all exceed the maximum cable length of 328 feet specified by 10BaseT."

To:
"The distances for A, B, C, D, E, F, G, and J to the hub all exceed the maximum cable length of 328 feet specified by 10BaseT."

Page 171: Information Under Wrong Heading

Page 171, under the heading "Presentation Layer", paragraph 2:
Move the following text to page 170, under the "Application Layer" heading.

"A utility known as the redirector operates at this layer. The purpose of the redirector is to redirect input/output (I/O) operations to resources on a server."

Page 176: Error in OSI Information

Correction:
Page 176:
Under "Enhancements to the OSI Model," the information about the LLC and the MAC should include the following information:

Page 208: Sequencing Information Is Under Transport Layer

On page 208, Figure 3.18 incorrectly shows that sequencing and address information is added to the packet at the Network layer.

Sequencing information is added to the packet at the Transport layer.

Page 210: APPC Listed as Application Protocol, S/B Transport Protocol

Page 210 bullets a number of Application Protocols. The list includes the first bullet:
"APPC (advanced program-to-program communication)--IBM's peer-to-peer SNA protocol, mostly used on SNA/400(R)s."

However, on pages 218 and 220, APPC is listed as a Transport Protocol.

On page 210, APPC should be removed from the bulleted list of Application Protocols. On page 211, APPC should be added to the bulleted list of Transport protocols.

Please note: APPC uses the LU 6.2 protocol that works in both the Transport and Session layers of the OSI model, which is why it can be considered a Transport protocol. However, APPC can also be defined as an application protocol since it also works in the Presentation layer of the OSI model. The terms APPC and LU 6.2 are often used interchangeably.

Page 212: Some Acronyms In Figure 3.20 Are Not Defined

Some of the acronyms referenced in Figure 3.20 are not defined in the text of this book.

TDI: Transport Driver Interface
NBT: NetBIOS over TCP/IP
DLC: Data Link Control

Also note: NDIS 3.0 is no longer used. NDIS 3.0 should be changed to 4.0.

Page 219: Screen Shot From NT 3.51

Page 219, Figure 3.22:
The third screen shot seen in Demo21.exe is from Microsoft Windows NT 3.51, not Microsoft Windows NT 4.0. This screen shot will be updated with the equivalent Microsoft Windows NT 4.0 screen shot in future reprints and editions.

Page 229: Last Paragraph Confuses Wire And Wire Pair

On Page 229 the last paragraph confuses wire and wire pair. First stating demand priority uses four pairs of wires (8 wires total), then stating the four wires enable quartet signaling.

Change:
"Four pairs of wires are used. The four wires enable quartet signaling, which transmits..."

To:
"Four pairs of wires are used. These wires enable quartet signaling, which transmits..."

Page 230: Demand Priority is Non-contention

On page 230, in the Access Methods Summary chart, change the second row in the Demand Priority column from "Contention" to "Non-contention"

Page 256: Illustration of 10BT UTP Shows Coax/BNC

The illustration in figure 4.3 shows a repeater being used to extend maximum cable length beyond 100m. This is in an ethernet system using unshielded, twisted-pair cable. Two segments of cable with BNC-type connectors are shown at the repeater.

This illustration should use RJ-45 connectors.

Page 266: Text Errors Confusing 100BVG With 100BT

Page 266, paragraph 3, sentences 2 and 3:

Change: "100BaseT"

To: "100BaseVG"

Page 266: Corrections To Specifications

Change second item under specifications from:
"Ability to support a cascaded star topology over Category 3, 4 and 5 twisted pair and fiber-optic cable."

To:
"Ability to support a cascaded star topology over Category 5 twisted pair and fiber-optic cable."

Category 3 and 4 twisted pair do not support data transmission rates of 100 Mbps.

Page 276: Text Error

Question 3. on page 276 states:

"3. In a token ring frame the Media Access Control field indicates whether the frame is a _____ frame or a _______ frame."

The answer given afterwards is :

token or data

The sentence should read:
"In a token ring frame the Access Control field indicates whether the frame is a _____ frame or a _______ frame."

Note that in the table on the previous page, there is a field called an Access control field, which not only indicates frame priority, but also indicates whether the frame is a data frame or a token frame.

Page 281: Text Incorrect

Page 281:
The last sentence of the second paragraph is incorrect. Up to 33 MSAUs can be connected together to form a Token Ring.

Page 282: Cable Lengths Expressed Inconsistently in Meters or Feet

On pages 282 and 283, cable lengths are given in text and in a figure. In the first two paragraphs, lengths are expressed in meters (with feet in parentheses).

In the figure, only meters are given. In the third and fourth paragraphs, only feet are given. On page 283, only feet are given.

Corrections for this situation appear below:

Figure 4.16:
101 meters
change to: "101 meters (330 feet)"
100 meters
change to: "100 meters (328 feet)"
45 meters
change to: "45 meters (148 feet)"

3rd paragraph:
150 feet
change to: "150 feet (46 meters)"
500 feet
change to: "500 feet (152 meters)"

Fourth paragraph:
500-foot limit
change to: "500-foot (152-meter) limit"

Page 283:
First paragraph:
150 feet
change to: "150 feet (46 meters)"
45 meters (150 feet)
change to: "46 meters (150 feet)"

Pages 300, 323, 335, 507, 617, 834: Minor Text Errors

Page 300: Exercise 1: Matching
Column B, Item B) "Uses bus star topology with UTP."
should read: "Uses star bus topology with UTP."

Page 323: Text of Figure 5.6 indicates a directory as:
"F:\=\Network server\Data directory"
should read: "F:\\Network server\Data directory"

Page 335: Last sentence reads: "For those services that are set to Manual startup, you can use the above window and the Startup... button to change them to start automatically."
should read: "Start... button"

Page 507: Exercise 3, Question 2), second paragraph reads: "Local groups consists of individual user accounts that have rights and permissions on the local computer and other group accounts."
should read: "other Global group accounts".

Page 617: Exercise 2: Matching, Column B, Item K, reads "SDN".
should read: "ISDN"

Page 834 (Index):
Under T:
"T1 Service, 586-587, 799"
should read: "T1 Service, 587-588, 801"

Pages 328: Minor Text Errors

Page 328: Under IP Address, 4th sentence, "The ID identifies a specific host on a network."
Should read "host ID identifies".

Pages 432, 547: Minor Text Errors

Page 432, 1st paragraph, 4th sentence, states: "Access permissions are rules associated with a resource, usually a directory file or printer."
Should read "directory, file or printer".

Page 547, 2nd paragraph, 1st sentence, states: "PPTP provides a way to route IP, IPX, or NetBEUI PPP *pckets* over a TCP/IP network."
Should read "packets".

Page 396: Description Of Centralized Computing Unclear

Page 396, under the Centralized Computing subheading:

Second paragraph, first sentence:

Change:
"The entire database travels in message-sized pieces..."

To:
"The requested information travels in message-sized pieces..."

Fourth paragraph, second sentence:

Change:
"If it is a large database, moving what could be vast amounts of data takes time and ties up the network."

To:
"Moving vast amounts of data takes time and ties up the network."

Page 443: Text Corrections

1. Page 443, third bullet:
   
   Change: "System Groups"
   
   To: "Special Groups"
   
2. Page 443, section "Built-in Groups," second paragraph:
   Sentence should refer to three types of built-in groups, not four.
   

Page 444: Invalid Information

On page 444, in the "Server Operators" row of the table:

Change: "Lock or override the lock of a server."
To: "Lock a server."

Page 537: International Standards Text Error

On Page 537, under the section titled "International Standards", the definition and origin of the word "terbo" are incorrect, and the definition of "bis" is technically incorrect as well.

Terbo is not French for third. The word "bis" is French, but it does not actually mean second. It is more likely to be interpreted to mean again or twice.

Change:
"Sometimes it also includes the word 'bis,' which means second in French."

To:
"Sometimes it also includes the word 'bis'."

Also change:
"If the standard also contains the word 'terbo,' which is French for third, it indicates that the second, or bis, standard was also modified."

To:
"If the standard also contains the word 'terbo,' it indicates that the second, or bis, standard was also modified."

Page 556: Error In Bridge Definition

The list on page 556 outlines the abilities of a network bridge. The last bullet is incorrect.

Change:
"Link unlike network segments such as Ethernet and Token Ring, and forward packets between them."

To:
"A translation bridge can link unlike network segments such as Ethernet and Token Ring, and forward packets between them."

Page 565: Fig. 7.14, Lower Left Router C Not Labeled

Figure 7.14 on page 565 shows a diagram of routers. In the text box for A's table routing, Adjacent Router C is described; however, there is no router labeled as C in the figure.

Line 2 of the small text box states:
Dest. Adjacent router Hops
H C 5

Instead, the text should state:
Dest. Adjacent router Hops
H F 4

Pages 567-569: Missing Page

In some copies of the "Networking Essentials, Second Edition" text, a printing error resulted in problems with pages 567-569. In the affected books, The content on page 567 is duplicated on page 568, the material on 569 should be on page 568, and the material that should be on page 569 is missing.

Microsoft Press has prepared a set of correction pages that contain the proper content for pages 568 and 569. These pages are in Microsoft Word 95 format and can be viewed using Microsoft Word 95, Word 97, or Microsoft Wordpad.

The following file is available for download from the Microsoft Download Center:
For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base: Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help to prevent any unauthorized changes to the file.

Page 615: ISDN Is Digital Connectivity At About 128Kbps

Page 615, fifth sentence:

Change:
"ISDN is digital connectivity that divides bandwidth into three channels to transmit voice, data, and imaging at about 150 Kbps."

To:
"ISDN is digital connectivity that divides bandwidth into three channels to transmit voice, data, and imaging at about 128 Kbps."

Page 617: Correction For Question 10

On page 617, Exercise 2, Question 10:
Change: "52.84 Mbps"
To: "51.84 Mbps"

Page 659: HP Network Advisor Has Been Replaced

Page 659, Figure 8.6 caption:

Change: "HP Network Advisor"

To: "HP Internet Advisor"

Page 661, 4th bullet point:
Change to:
* Hewlett-Packard Internet Advisor

The Internet Advisor is actually a 386-based computer that includes a color LCD screen, interfaces designed for data acquisition for a LAN, WAN, or ATM, and an artificial intelligence (AI) portion called Expert Analyzer.

Page 690: Starting Point URL Is Wrong

On page 690, the URL for Starting Point, listed in question 4 is wrong.

Change:
http://www.stp.com

To:
http://www.stpt.com

Page 777: Corrections For Description of Gateway & Frame Relay

On page 777, the description of Gateway is incorrect.

Change:
"Gateways functions at the Network layer of the OSI model."

To:
"Gateways typically function at the application layer of the OSI model. However, the level of functionality varies widely between different types of gateways."

Also on page 777, the acronym for PVC used in the Frame Relay description is incorrect.

Change:
"It is a point-to-point system that uses a private virtual circuit (PVC)..."

To:
"It is a point-to-point system that uses a permanent virtual circuit (PVC)..."

Page 822: Index Listing For Multiplexing Also See Page 587

Index, Page 822:

The listing for Multiplexing should include page 587 which gives the definition of multiplexing.
Change the listing:
Multiplexing (muxing) 588, 785

To:
Multiplexing (muxing) 587-588, 785

Microsoft Press is committed to providing informative and accurate books. All comments and corrections listed above are ready for inclusion in future printings of this book. If you have a later printing of this book, it may already contain most or all of the above corrections.