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Home > Archive > CCNA > August 2000 > Disappointed in Lammle's new book
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Disappointed in Lammle's new book
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| Well it's the fifth day of a five day cram session, so I hope I'll be ready for the test tomorrow. I had read Lammle's 640-407 study guide through 5 times(not my only source) and was fairly confident I had most of the materials down pat.
But after reading a number of posts on this board by people who had just passed, I got in a panic by how many of them mentioned how different the new test is. So I called my friend Clint to see if I could rush over and get his Lammle 640-507 to make sure I had the new materials down.
Well I must say I am just as, if not more disappointed in his 507 than his 407 because there are MORE errors in 507 than 407. I thought for sure he would have corrected the errors of 407 in 507, and he did some, but there's an even bigger batch of NEW errors in 507.
The other night my wife was quizzing me out of the 407 book using the address table in the back. It's a pretty handy table which gives all three together, decimal/binary/hex. She would give me one and I'd figure the other two out in my head. She gave me 59 and I said 3b and 00111011. Wrong she says, "the table says 00111010". Well the book is wrong I said, that's 58. Odd decimal numbers always end in a 1 in binary. Well it turns out the whole column was wrong.
That is just one of the numerous typos and wrong answers in 407(there's a bunch of wrong answers in the subnetting section). Now I figured 507 would be better-WRONG. There are MORE errors in 507 than 407 and they're new errors to go with some old ones.
On page 41-42 he gives the different uses of straight-through cables versus crossover cables. Straight-through are said to be used for:
* connecting a router to a hub or switch
* connecting a server to a hub or switch
* connecting workstations to a hub or switch
While crossover cables are said to be used for:
* connecting uplinks between switches
* connecting hubs to switches
* connecting a hub to a hub
* connecting a router to a router
* connecting two PC's together
But when we get to the review questions question #6(Lammle 640-507, P-58) is:
For which of the following would you not need to provide a crossover cable?
A. connecting uplinks between switches
B. connecting routers to switches
C. connecting hub to hub
D. connecting hubs to switches
Answer(Lammle 640-507, P-68):
B and C. Crossover cables are used to connect switch to switch and hub to switch.
Huh? I thought hub to switch used a straight-through cable. This is not just a typo in the answer. If we change the answer to hub to hub rather than hub to switch the answer is STILL WRONG.
Now let me point out, there a MANY errors in the book like this which I do not have the time to point out here. But to suffice it to say that I have much less confidence in the materials that I have learned from his books.
I guess that's a good reason you should have many sources of information. But it is disappointing that a proof reader or Todd himself could not have spent the 3 hours reading I did. All I can say is CAVEAT EMPTOR!!!
Thanks for letting me get that off my chest.
All references to published materials are authorized under fair use.
Certmadman,
A+, Network+, I-net+ | |
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| "Huh? I thought hub to switch used a straight-through cable. This is not just
a typo in the answer. If we change the answer to hub to hub rather than
hub to switch the answer is STILL WRONG."
Sorry, my typo, hub to switch is crossover.
See how confused he's gotten me? | |
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| Thanks for the info certmadman!
I am using Odom's Cert Guide and was thinking of buying Lammle's 507 book. I think I should check them out first!
Good luck in your test! Seems to me like your ready for whatever it throws at you!
(How can you work out Hex in your head?!? i can't even fathom how, let alone doing it myself! lol)
Cheers.
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Cheers.
TKN (aka Dylan)
MCSE, MCP+I | |
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| Thx, hope I do well :-)
Hex is easy, just divide by 16, subtract the remainder, and assign number or letter. it's 1-9 or a-10, b-11, c-12, d-13, e-14, f-15.
16 goes in to 59 3 times or (3x16)48-----3
59-48=11, 11 is b------------------------b
59 is 3b in hex | |
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| Wow, Certmadman, that has got to be the best way I have ever seen Hex done. I think I'll use that from now on.
I used to do decimal to binary the traditional way (subtracting powers of 2), then do binary to hex by breaking the bytes in half and converting each "nibble" into hex.
i.e.:
140 -> 10001100 -> 1000 1100 -> 8, 12 -> 8C
Your way is a lot easier.
Thanks!
Skip
[This message has been edited by TheSkipster (edited 08-24-2000).] | |
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| outstanding!!!...definite feedbacks on erros in the new 507 Lammle book and nice way to hex to decimal conversion...check people i avoided hex(converting!) and have never actually used octal and now a neat hex conversion! this messagebrd is turning out to be as valuable as any book or course thanks to the good group that we have. giga kudos 2 certmadman | |
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