Multiple Domains and SEO

This could be the most noobst question ever so feel free to bash me...

However i have a site, and believe it or not it has a main domain name....

Now i have also purchased a number of other similar domains linked to that niche. I've hooked all the domains up to the hosting and set them to load from the root directory, aka the same site accross all the domains. My question would be...

How would google see this? Would they index the site multiple times? So see the same content and just skip it?

Submitted a index request to google few days ago but yet to see it in any exact match keyword searches.. Any ideas would be great.

Thanks

Looks like all will be on the same IP address which I would not advise...

Why not just 301 redirect the other sites to your main URL?

All domains from different IP and hosting, it's gives best results.

On one hand there is no problem with having multiple domains on one ip. There are plenty of very large authority websites that are located on one ip.

The problems are:
Crappy content
Linking crappy content sites together
then the big G will penalize your sites. Unless you are using a VPN, then you are probably already sharing your ip with other people, and you have no control over what they are doing anyway.

Make each domain stand by itself. Take time and develop them, after a few months then start linking them together. Or sell them off

Next time consider setting up a WPMU multiuser set up. Then you only need to buy one domain - dogzz.com - and then set up multi sites and control and update them from one place.
It will look something like this - dogtraining.dogzz.com - dogfeeding.dogzz.com and so on.
Just do the proper keyword research

Maybe even do this right now. and sell off the other domains down the line

all the best

Make sure to do your research about WPMU