CCNA & ip subnet-zero

Hi,

I have finished reading Todd Lamle's CCNA study guide 5th edition and it clearly states that the recent CCNA exam asks subnetting questions based on the ip subnet-zero command being enabled - however reading some testking questions (v6.2) the subnetting questions take into account the 2 to the power of - 2 for the total amount of subnets which means that the ip subnet-zero command is not enabled.

Has anyone taken the exam lately and seeing whether it is with or without the command enabled?

Thanks,

Jamie

Thanks - I thought as much but did not see any on the testking questions thus my question.

Its odd they ask that because it's enabled by default in cisco IOS, but I'm sure at some point it was not. I think the lesson in knowing that is understanding the use of it.