Is transcender, sybex and boson sims adequate?

sleemie

I've read the sybex book, taken the transcender tests, done most of the boson labs and i'm at about a 90% success rate with the transcender and sybex tests...but then I start doing the boson exsims which has a total of over 700 questions and after taking like half of the first test which is which is like 190 questons i'm at like a 46% success rate. Some of the stuff in there just doesn't seem like it would be as important, and i've heard people say they've passed the test just sybex, the cisco press and some real routers or the boson sims, so I figure I can skip these exsims and be okay...

some of the questions that none of my other tests/books asked..

what's the LLC sublayer specification for IEEE Ethernet?

what is the name given to the multicast internet?

just to name a couple of some of the more obscure type questions...

any opinions??

Humper

I've never seen any questions like that with my **** subscription either...They are over 775+ questions