I want to ask about XM's ultra-low account. 1. Are...

Jeff Thompson: 

1. I do not know directly about the technical conditions on real accounts. However, as the name implies, usually accounts that carry the ultra-low spread brand have relatively lower spreads compared to other account types.
2. Yes it can. For more info please visit the MQL5 page directly.
3. As the name implies, negative balance protection is a feature that will protect/prevent your account from minus/negative balances. This feature will save the trader from a minus balance. Also, this feature is useful to prevent the broker from losing too much. If there are traders/clients who experience minus balance, then of course the broker will also suffer losses and be negatively affected. That way, this feature has become a mandatory and standard feature in almost all brokers.

Jeff Thompson: This ultra-low account is similar to standard? Or mini or cent?

Giorgio Clementi: This ultra-low account is almost the same as a standard account, only the spreads applied to this account are relatively lower.