Networking Question

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  • Amherst
    Amherst Posts: 695
    edited July 2010
    The wikipedia answer above is the long and short of the answer.

    Just the last octet is not always the only involved in classless routing.
    An example would be and address with a /23 or lower number.
    You are working strictly with class C in the above problem.

    Take your time and understand here, with subnetting, it's the basis you need to build on.
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  • bigaudiofanatic
    bigaudiofanatic Posts: 4,415
    edited July 2010
    The answers are B and D.
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  • John30_30
    John30_30 Posts: 1,024
    edited July 2010
    bigaudiofanatic wrote: »
    The answers are B and D.

    B is a network #, D is a host. They made the same mistake with D that I did- saw 24 bits and thought 28.
    That's a tricky bastage question in any case, plus they are wrong. Usually it just asks what are valid host #'s.

    B with a /26 or .192 has 4 networks with 62 hosts each. Network #'s are 0,64,128,192.

    D with a /24 or .0 has 1 network with 254 hosts. Network # is 0.


    Correct me if I'm wrong, guys.
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  • bruss
    bruss Posts: 1,039
    edited July 2010
    John30_30 wrote: »
    B is a network #, D is a host. They made the same mistake with D that I did- saw 24 bits and thought 28.
    That's a tricky bastage question in any case, plus they are wrong. Usually it just asks what are valid host #'s.

    B with a /26 or .192 has 4 networks with 62 hosts each. Network #'s are 0,64,128,192.

    D with a /24 or .0 has 1 network with 254 hosts. Network # is 0.


    Correct me if I'm wrong, guys.


    You are correct that D is not a network address but rather a host on the 192.18.12.0/255.255.255.0 network.
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  • concealer404
    concealer404 Posts: 7,440
    edited July 2010
    Looks like i was right about something. :p
    I don't read the newsssspaperssss because dey aaaallllllllll...... have ugly print.

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