job screening question

Jon Lewis jlewis at
Sun Jul 8 01:34:59 UTC 2012

On Sat, 7 Jul 2012 valdis.kletnieks at wrote:

> On Sat, 07 Jul 2012 18:03:43 -0700, Randy said:
>>> "What's the problem with using as a subnet mask if you
>>> want to make a LAN subnet with 12 hosts?"
>>> (5 word answer)
> I'm not sure if that's a typo or excessive evil on the part of the questioner. ;)
>> My response would be: Discontiguous subnet masks were allowed in the pre-CIDR era.
> Yes, but even if it was *legal*, the "subnet doesn't contain 12 addresses" answer applies. ;)

It's just a can do all sorts of crazy things with netmasks. 
The results of using "unusual" ones is not typically predictable or 
desireable to those who might accidentally use them.

  Jon Lewis, MCP :)           |  I route
  Senior Network Engineer     |  therefore you are
  Atlantic Net                |
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