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CCNA: Cisco Certified Network Associate Study Guide: Exam 640 - 801, Deluxe, 4th Edition
ISBN: 978-0-7821-4392-8
Hardcover
720 pages
March 2005
This title is out-of-print and not currently available for purchase from this site.
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  • Errata
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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
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1-16-2007
Various Various Combined Errata

Page 0CD

Chapter 2 Question 9 The book and CD says the answer is C, it should read B - HTTPS. The explanation is correct.

Page 41

Paragraph 5 Last sentence -The sentence reads, "It the packet is destined for a remote host, IP will look for the IP address of the default gateway (router) instead". The "It" in the beginning of the sentence should be an "If".

Page 51

Question 9 - Option F needs to be removed from the question.

Page 102

Chapter 2 Question 9 The book and CD says the answer is C, it should read B - HTTPS. The explanation is correct.

Page 129

Practice Example #2A Last column of table, all IPs should be 10.255.x.x not 10.0.x.x
Response...

Yes, this is correct.
After the ... in this practice example #2A on page 129, here is what it
should be

10.255.240.0
10.255.240.1
10.255.255.254
10.255.255.255

Page 132

Figure 3.2 it says "The mask 255.255.255.240 (/28) provides 14 subnets, ..." should be "The mask 255.255.255.240 (/28) provides 16 subnets, ..."

Page 135,137,139

On pages 135 and 137, the tables at the top of the page (From left to right: Subnet, Mask, Subnets, Hosts, Block) are incorrect in the Subnets column. It seems as though each number is listed as two less than it should be. For example: A subnet with mask 192 is listed as having only 2 available subnets, even though the block size is 64. As the author stated on page 136, "With a block size of 64, you can only have four networks, and so on, ..."

Response..

Yes, those tables were not updated in accordance with the ip subnet-zero
rule, so the 192 mask would provide four subnets, etc.

Number of subnets needs to be +2

Right now, they are 2, 6, 14, 30, 62…..please change to 4, 8, 16, 32 and 64.

Page 140

Exam 640-801: On page 140, the first sentence below Figure 3.9 should be changed from "From the list of IP addresses on the left of the figure,..." to "From the list of IP addresses on the right of the figure,..."

Page 146

Towards the bottom of the page: Existing: Host B IP address 192.168.10.34-62 should be Host B IP address 192.168.10.34-46


Page 155, Chapter 3 - Question 11

Here is the correct question text:
Which of the following IP addresses fall into the CIDR block of
110.68.4.0/22? (Choose three.)
A. 110.68.8.32
B. 110.68.7.64
C. 110.68.6.255
D. 110.68.3.254
E. 110.68.5.128
F. 110.68.12.128
Answer: B, C, E.
New explanation:
A Class A network address with a /22 is 255.255.252.0. The subnets
in the third octet are 0, 4, 8, 12, etc. The network address in the
question is 110.68.4.0, with a broadcast of 110.68.7.255, since the
next subnet is 110.68.8.0. Answers B, C, and E are correct host IDs.

Page 187

The second command (line) from the bottom of the page should read “Router(config-line)#exit” instead of just Router(config)#exit

Page 235

Fourth line down should be 192.168, not 172.16

Page 236

End of first paragraph should be 192.168, not 172.16

Page 271

Line 3-4 Should read “debug ip rip” not “debug ip route”

Page 282

Question #7, answer A. should read:
"RouterC will use an ICMP to inform HostA that HostC cannot be reached"

Page 326

4 lines from bottom. IP addresses should be 192.168.10.64 through 192.168.10.95

Page 517

Answer numbering is incorrect

Page 570

Q12. The command variables 180 and 40% have been transposed.

April 3, 2006