Which three statements are correct about NFSV4?

A.
It relies on the LOCKD and RPC.STATD daemons to perform file locking.

B.
It uses a single port (2049) for all client/server communications.

C.
The UID and GID for a particular user must be the same on both client and server to
avoid file ownership problems.

D.
It has support for filesystem quotas.

E.
RPC.IDMAPD is used to map a UID to its username and a GID to its group name and
vice versa.