Questions

ip/subnets

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ip/subnets

infinity1495
Given an IP address of 192.168.1.42 255.255.255.248, what is the subnet address?
A. 192.168.1.8/29
B. 192.168.1.32/27
C. 192.168.1.40/29
D. 192.168.1.16/28
E. 192.168.1.48/29

and if anyone can explain how they got the answer i will appreciate that..thanks
Clarifications Clarifications
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infinity1495
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I see i think i got it! Thanks alot!

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infinity1495
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thne how come it doesnt work in real application?

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Nunob
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Is funny how after someone says we don't do homework for others that someone still carries on to do the homework for them. We end up with CCNA's in the field that can't do anything I am looking to fire two just like this got a paper cert but not bright enough to use it really takes away from the clout the old CCNA certs had.

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Charles Bundy
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I agree that one shouldn't do the homework, but explaining how subnets work is different from just giving an answer. Somewhere along the line somebody has to say this is the right way to do it and here is why. Otherwise you are making unresonable demands (similar to the Foxconn iPhone5 assembly SNAFU ongoing.)

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Nunob
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Not really unreasonable to expect someone to learn. Most books are great resources for CCNA and it would be different if the guest came in and said I am trying to understand how subnets work not just posting a question from their homework. Training a generation who expects to be able to get the answer to anything for free off the internet and they make for lousy employees.

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Charles Bundy
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Am I to understand that from the statement

Training a generation who expects to be able to get the answer to anything for free off the internet and they make for lousy employees.

You believe that internet research == lousy employee?

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infinity1495
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You know something its not fair of you to accuse me of using internet to do my homework. its not homework my friend and i do know subnetting but abviously not good enough, i am not trying to get easy answers but for someone who can explain to meso i would learn it once and for all. an not all book s have good explanations., so before you star firing people and accusing someone not being bright enough ask a question why someone is asking for help. You dont know anything about me so to make an assesment that i am not that bright is very arrogant and rude on your part, plus you sound very pissed off.

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infinity1495
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and as far as this example Which two commands will display the current ip address and basic layer 1 and layer 2 status of an interface?(choose two)
*router#show version
*router#show ip interface
*router#show protocols
*router#show controllers
*router#show running config
i was just trying to confirm that i was right, because in packet tracer the answer is different then what the book says. the book gives the answer as show protocols and show controllers but in packet tracer show contorollers doesnt give IP address so i was just wondering why the book has it like that

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jglover
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Not sure what your issue with this is. I was an IT instructor for many years and have had to explain subnetting principles to many. Textbooks give one explanation and for some that just does not gel. The oringinal question was not just "Waht is the answer" but also "can you explain how you got it". That indicates someone who is having trouble grasping the basic ANDing concept behind subnetting. I have had to work with people who tried to learn before but were always told "Look it up" and found they were usually lacking in skills. I saw the answer by Charles and it was concise and very well explained.
As for the Internet, I have 20 years experience in IT and still use the Internet for research. I for one think it is an invaluable tool. If you know everthing already, then hooray for you . You should be a CCIE then. For the rest of us, going to sites like this and asking questions is part of increasing our knowledge base.

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infinity1495
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Thanks jglover, i know the basic of subnetting but just wasnt sure as to how they got the answer. i also posted another question as i said using packettracer or GNS3 i get a different answer but the book dissagrees so i would like to know if i am right or the book made a missprint