CCENT/CCNA ICND1 Official Exam Certification Guide
Second Edition
Copyright © 2008 Cisco Systems, Inc.
ISBN-10: 1-58720-182-8
ISBN-13: 978-1-58720-182-0
Warning and Disclaimer
Every effort has been made to make this book as complete and as accurate as
possible, but no warranty or fitness is implied. The information provided is on an "as
is" basis. The author and the publisher shall have neither liability nor responsibility to
any person or entity with respect to any loss or damages arising from the
information contained in this book or from the use of the CD or programs
accompanying it.
When reviewing corrections, always check the print number of your book.
Corrections are made to printed books with each subsequent printing.
Note: Due to some oddities in the printing production process, multiple print runs
may have the same printing number. To fully identify some printings, you must look
at the copyright page, and find both the printing number and the printing
month/year. In this errata file, when the same print run number has been used for
multiple printings, the printing number and date is listed in this errata file. Please
compare this to your book’s copyright page to find the correct printing and section to
begin with in this errata file.
First Printing: August 2007
9th Printing
(Includes previous printings)
Page 24 – 2nd paragraph – begins “The other protocol… HTML”, should not refer to
HTML as a protocol. Replace “protocol” with “specification”.
Page 110 – Table 5-5 – the table is inconsistent compared with Cd-only appendix I’s
table I-7. The table as listed on page 110 is correct.
Page 141 – 1st paragraph after Figure 6-6 – the timer is per TCP segment. To fix the
text, in the first line, change "…sets a retransmission timer…" to "…sets a
retransmission timer per segment…". In the 3rd line, change "…all segments again."
to "…the segment again."
Cisco Press ICND1 Exam Certification Guide – Errata
Last Update: January 28, 2010
7th Printing
(Includes previous printings)
Page 117 - Step B - 2nd to last line - The text currently reading "R2 forwards the
packet..." change the first instance of R2 to R1. The text should now read "R1
forwards the packet..."
Page 311 – Table 11-6 – row whose first column lists DSSS – add "802.11g" to the
right column.
Page 352 – 1st paragraph – 3rd line – repeats "two-fifty-five" 4 times – it should
instead list that phrase 3 times, followed by "zero", being the wording version of
255.255.255.0.
Page 445 - Example 14-4 - 7th highlighted line – lists "…10.1.1.251", which should
instead be "…10.1.128.251".
Page 461 – 2nd bullet point – "…16 seconds ago" should be "…20 seconds ago".
Pg 472 – Figure at bottom of the page – The address on R2’s S0/1 interface should
be changed from 10.1.13.3/30 to 10.1.13.2/30.
Page 501 – 1st paragraph – 2nd to last line – text "… link between R1 and R4" should
instead be "… link between R3 and R4."
Page 504 – example 15-10 – 3rd and 4th lines – swap the references between
FastEthernet 0/0 and FastEthernet 0/1.
Pg 604 - Last definition on page - "CSU/DSU…" Change the word "digital" to "data".
4th Printing
(Includes previous printings)
Page 83 – table 4-2 – 2nd column, 2nd-to-last row – the speed for an E3 is 34.368
Mbps.
Page 119 – paragraph before Step 1 – 2nd line - …Routing protocols follow… " should
instead be "…Routers follow…". Then, in steps 2 and 3, change the 1 instance of
"router" to "routing protocol". (These changes make the distinction that the routing
protocol does the work in steps 2 and 3, but not in step 1.)
Page 192 – table 7-4 – last row, right-most column – the distance per the
specifications is 5Km, not 10Km.
Page 308 – last paragraph – 3rd line – "shortwave" should be replaced with "Ultra
High Frequency (UHF)".
Page 309 – table 11-5 – first column – "900 Khz" should instead be "900 Mhz". In
the second column, the "M" in ISM stands for "Medical", not "Mechanical".
Cisco Press ICND1 Exam Certification Guide – Errata
Last Update: January 28, 2010
Page 430 – last line on the page – "…about 72 MB…" should instead read "…about
384 MB…".
Page 456 - table 14-4 – RIP-1 column – row for "supports autosummarization" – the
cell should list "yes", meaning RIP-1 does support autosummarization.
Page 485 – Example 15-3 – 4th line lists "172.16.1.251" – it should instead be
"172.16.1.253" to match figure 15-1. Likewise, same page, very last line, replace
"172.16.1.251" with "172.16.1.253".
Page 493 – Example 15-9 – the IP address for interface Fa0/1 should be
"192.168.4.30" instead of "192.168.2.23".
Page 495 – 2nd paragraph – 2nd line – "172.31.25.0/25" should instead be
"172.31.5.0/25".
Page 495 – 4th paragraph – 3rd line – "…between 172.31.25.1 and 172.31.25.126…"
should list a 3rd octet of "5", not "25", in both numbers.
Page 583 – Chapter 11, question 1, answer: Replace answer text with “802.11a uses
the U-NNI band of frequencies (around 5.4 GHz). 802.11b and 802.11g use the ISM
band (around 2.4 GHz). 802.11i is a security standard.”
Appendix F (CD only) – page 23 – table F-6 – Column 2, last row reads "Not shown",
but instead should say "12.2(25)SE".
Appendix F (CD-only) – page 16 – answer to question 6 – reference to "7 seconds"
should instead be "9 seconds".
3rd Printing
(Includes previous printings)
Page 156 – figure 6-15 – upper left section – laptop labeled “PC2” should instead be
labeled “PC1”.
Page 278 – paragraph after table 10-2 - two instances of the word “enabled” should
instead read “disabled”. (1) in the middle of the 3rd line: “…CDP can be easily
enabled”, replace “enabled” with “disabled”. (2) towards the end of the 6 th line:
“Otherwise, CDP can be enabled…”, again replace “enabled” with “disabled”.
Page 279 – figure 10-2 – the PC in the upper left should be labeled “Fred”, with MAC
address “0200.1111.1111”.
Page 286 – paragraph before figure 10-3 – 2nd line – “…duplex half…” should instead
be “…duplex full…”
Page 394 – table 12-40 – the table should have 10 highlighted lines, as follows,
based on the first column: Tables 12-2, 12-3, 12-4, 12-9, the lists on pages 356,
358, and 359, table 12-12, and the two entries labeled as “paragraph”.
Cisco Press ICND1 Exam Certification Guide – Errata
Last Update: January 28, 2010
Pages 492 and 494 – figures 15-5 and 15-6 – PC11, near the upper left of the figure,
should have IP address 10.10.25.1/21, in both figures. As currently listed with IP
address 10.10.23.1/21, PC11 would not be in the same subnet as R1’s Fa0/0
interface.
Page 493 – Example 15-9 – the two “interface serial…” commands refer to the wrong
serial interfaces – instead of serial 0/0/0 and 0/1/0, the example should list serial
0/0/1 and 0/1/1, respectively.
Page 494 – figure 15-6 – upper right part of figure – text “Subnet 192.168.4.16 /24”
should instead end in “…/28”.
2nd Printing
(Includes previous printings)
Page 440 – figure 14-1 – Router “Seville” – IP address 10.1.130.252 should end in
“253” instead of “252”.
Page 492 – figure 15-5 – the two bottom routers should be labeled “R3” and “R4”,
instead of “R1” and “R2”, respectively.
Page 178 – figure 7-6 – wrong figure. The correct figure is:
Page 207 – last two entries in the bullet list should read “No parity bits” and “1 stop
bit”.
Cisco Press ICND1 Exam Certification Guide – Errata
Last Update: January 28, 2010