What is the symbol for USD.JPY in IQFeed and IB?

I am newbie in forex and would like to trade forex.

In IQFeed, Tenfore and FXCM, which one is preferred? What is the symbol in IQFeed for USD.JPY?

Is USD.JPY-IDEALPRO-CASH the corresponding symbol in IB?

As far as which is preferred I’m not a forex guy so I don’t have anything to add there.

Here’s a link to IQFeeds symbol guide, you can scroll down and view Tenfore and FXCM’s listings.