job screening question

Matthew Kaufman matthew at
Sun Jul 8 17:58:34 UTC 2012

On Jul 7, 2012, at 6:03 PM, Randy <randy_94108 at> wrote:

> <snip>.... 
>> "When a number received in an IP packet is presented in
>> network byte
>> order,  and the host architecture is big endian, what
>> must be done to
>> convert the number into host byte order?"
>> (one word answer)
> My response would be to have a field-day with HR talking about MSB and LSB.
> Certainly wouldn't be a one-word answer. So HR disqualifies me?
>> "What's the problem with using as a subnet
>> mask if you
>> want to make a LAN subnet with 12 hosts?"
>>   (5 word answer)
> My response would be: Discontiguous subnet masks were allowed in the pre-CIDR era. If you so desire, give me about 2 hours since I do not have a scientific calculator handy; and I will get back to you with the complete-list.
> Definitely not 5 words as required from the HR stand point. So I get disqualified again!
> ./Randy

Oh, come on, 247 decimal is 0xf7... A single zero bit in the mask isn't enough for 12 hosts no matter where it is.

If you need a scientific calculator and 2 hours for that, HR is right.

Matthew Kaufman

Sent from my iPad

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