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CompTIA Network+ Study Guide: Exam N10-004

ISBN: 978-0-470-42747-7
888 pages
April 2009
CompTIA Network+ Study Guide: Exam N10-004 (0470427477) cover image
Bestselling author Todd Lammle thoroughly covers this first revision of the CompTIA Network+ exam since 2005. Using his one-of-a-kind conversational style, Todd gives you clear and concise information on crucial networking topics through practical examples and insights drawn from his real-world experience. This Study Guide thoroughly covers all exam objectives for the CompTIA Network+ exam (N10-004), including key topics such as network technologies, media and topologies, devices, management, tools, and security. Along with the book you get a CD-ROM featuring a custom test engine with chapter review questions, two practice exams, flashcards, and the book as a searchable PDF.

Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.

For Instructors: Teaching supplements are available for this title.

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Assessment Test.

Chapter 1 Introduction to Networks.

Chapter 2 The Open Systems Interconnection Specifications.

Chapter 3 Networking Topologies, Connectors, and Wiring Standards.

Chapter 4 The Current Ethernet Specifications.

Chapter 5 Networking Devices.

Chapter 6 Introduction to Internet Protocol (IP).

Chapter 7 IP Addressing.

Chapter 8 IP Subnetting, Troubleshooting IP, and Introduction to NAT.

Chapter 9 Introduction to IP Routing.

Chapter 10 Routing Protocols.

Chapter 11 Switching and Virtual LANs (VLANs).

Chapter 12 Wireless Technologies.

Chapter 13 Authentication and Access Control.

Chapter 14 Network Threats and Mitigation.

Chapter 15 Physical and Hardware Security.

Chapter 16 Wide Area Networks.

Chapter 17 Command-Line Tools.

Chapter 18 Software and Hardware Tools.

Chapter 19 Network Troubleshooting.

Chapter 20 Management, Monitoring, and Optimization.

Appendix A Subnetting Class A.

Appendix B About the Companion CD.



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Todd Lammle, CCNA, Network+, is the authority on networking. He has been involved in computers and networking with Fortune 500 companies for over 25 years. Todd is President of GlobalNet Training, Inc., a networking integration and training firm based in Dallas. He is also the bestselling author of numerous Cisco books, including the popular CCNA: Cisco Certified Network Associate Study Guide, with over 200,000 copies in print. You can reach him through his website at
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Do you think you've discovered an error in this book? Please check the list of errata below to see if we've already addressed the error. If not, please submit the error via our Errata Form. We will attempt to verify your error; if you're right, we will post a correction below.

ChapterPageDetailsDatePrint Run
CD Combined CD corrections, 1st Printing
Assessment Test
#14. option D is 192.l68.0.1 (that’s an L), should be
#33. change option B to –Z instead of -A

Chapter 1
#15. “start” should be “star” in explanation

Chapter 3
#1. correct answers should be B and C
#6. Change options B and C to 568A and 568B. Change explanation to 568A
#20. Change 586B to “568B” in both the question and the explanation.

Chapter 6
#8. Answer should be E, not B

Chapter 7
#2. In the explanation it shows a mask of 255,255,0,0. Should be

Chapter 8
#18. Change the question to be: Which of the following is a valid host address?

Chapter 12
#13. change option C and D to end with “AP.” instead of just “A”

Chapter 17
Option B needs to be changed from “arp ?all” to “arp -all”
Option C needs to be changed to “arp /a” from arp ?a.
Option D needs to be changed to “ipconfig /arp”
Option E needs to be changed to “arp /ipconfig”
Explanation need to be changed from arp ?a to arp /a

Chapter 18
#9. Correct answer should be B
#17. Option C needs to be changed to “110” block

#3. option A should be “X.25”
#4. in the question, “company?s” need to be changed to “company’s”
#5. change “host?s” to “host’s”
#20. There is only one correct answer: B. The question shows two correct answers, A and B, but only B is correct. Change the format of this question to single answer.
#21. in the question “frame relay” should be “Frame-Relay”
#27. change “provider?s” to “provider’s”
#28. Answer should be “D”, not C. Question, options and explanation are correct.
#33. change “company?s” to “company’s”
#35. Correct answer should be “B”, not C. Question, options and explanation are correct.
#48. change “DS0?s” to “DS0’s”
#49. change “AP?s” to “AP’s”

#28. Correct answer is “D”, not B
#29. In the question, “feather” should be “feature”

#9. Change “Which of the following…” to “Which can…” and change answer to switch/bridge
#11. Change last sentence to “What can typically cause this problem?”
#24. Which of the following techniques…” to “Which technique…”
#31. Change “Which of the following… with “Which is the point….”
#32. Change “Which of the following with “Which is a utility….”
#34. Change “Which of the following…” with “What is the default….”
#59. Change “Which of the following…” with “Which WAN …..”
7/16/09 1st
CD Corrections to Bonus Exams made after 1st printing
Bonus Exam 1
Question 37: Change Option C to
Question 40: Change Option C to 802.11b
Question 50: Change Option C, "OC-3" to "OC-12" Bonus Exam 2
Question 50: The correct answer is B, not D
CD CD Incorrect answers given on Flashcards 148 and 150
The answer given for Flashcard 148 is incorrect. It should be "False".

The answer given for Flashcard 150 is incorrect. It should be "False".
9/29/10 1st - 5th
various various Text corrections: Incorrectly named wiring standard
The following are instances in the 1st printing of the book where the 568 wiring standard was incorrectly identified as the 586 standard.

p. 77, under Wiring Standards, 1st and 2nd bullets: 586A and 586B should be 568A and 568B
p. 87, in the Exam Essentials, 3rd and 4th items: in the heading and the list item 586A and 586B should be 568A and 568B
p. 88, Written Lab, nos. 8 and 9: 586A and 586B should be 568A and 568B
p. 89, Review Question 6, options B. and C.: 586A and 586B should be 568A and 568B
p. 92, Review Question 20: 586B should be 568B
p. 93, Answer to Review Question 6: 586A should be 568A
p. 94, Answer to Review Question 20: 586B should be 568B
p. 95, Answers to Written Lab, nos. 3 and 6: 586B and 586A should be 568B and 568A
p. 655, Answer to Review Question 5: 586A should be 568A
p. 788, in Glossary entry for “unshielded twisted-pair (UTP) cable”: 586A and 586B should be 568A and 568B
8/7/09 1st
1 30 Text correction: Answer to Review Question 15
The answer to question #15:

"The best answer to this question is Ethernet, which uses a start physical topology with a logical bus technology."

Should be:

" physical topology with a logical bus technology."
6/3/09 1st
3 64 Text correction: Incorrectly identified cable
In the note under Coaxial Cable, the 2nd sentence, "Thicknet was known as RG-58 A/U." is incorrect. Thicknet's grade was designated RG-8, as indicated in Table 3.1.
9/29/10 1st - 5th
3 72 Text correction
The second sentence in the Real World Scenario at the top of the page reads:

"The standards limit UTP to a pathetic 228 feet."

That figure is incorrect. It should read "...328 feet."
6/3/09 1st
4 122 Text correction: Error in Review Question 9
"...100GBase-LR" should read
4/12/10 1st-5th
7 237 Text correction: Incorrect range given in explanation accompanying the answer to Review Question 5.
In the explanation accompanying the answer to Review Question 5, the first sentence, "The class B range is 129-191 in the first octet/byte." is in error.
It should read:
"The class B range is 128-191..."
5/27/10 1st - 4th
8 263 Text correction: typo in broadcast address
Under 3., the last sentence contains an error in the broadcast address.
"" should be ""
7/23/09 1st
8 283 Text correction: Incorrect subnet in explanation accompanying the answer to Review Question 5.
The second sentence of the explanation, " the next subnet is" should read " the next subnet is"
8 285 Text correction: Answer to Written Lab, question 3.
The answers given for the broadcast address and valid host range are incorrect. The host is in the 64 subnet, not 32 as given in the answer. The broadcast address is 95. The valid host range is 65-94.
9 303 Text correction: Error in Written Lab Question 9
The second sentence in the question, "What will be the destination hardware address of the frame?" should read:
"What will be the source hardware address of the frame?"
4/12/10 1st-5th
15 535 Text correction: Incorrectly identified protocol in Chapter 15 Exam Essentials
In the last entry on the page, "Know which application-layer protocols are secure.", "RCP" should read "SCP".
19 696 Text correction: Incorrect answer to Review Question 18
The correct answer is B., not A. The explanation is correct.
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Instructors Resources
Wiley Instructor Companion Site
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