Capital One 360 is just a traditional checking account through Capital One and is not a Money Market Account.
However you can open a Capital One 360 Money Market Account if you want too.
So if you open up a Money Market Account through Capital One 360 then you'll have a money market account with a high interest rate to earn you more money than a traditional savings account.
I have a Capital One 360 Savings account and also a Capital One 360 Money Market Savings account which helps me earn more money with my savings than I did with my regular savings account at another bank.
So if you want a money market account you need to sign up for the money market account and not the traditional savings account through capital one.