Which two statements about AToM are true? (Choose two)

AToM encapsulates Layer 2 frames at the ingress PE router where traffic enters the MPLS network, not at the egress PE.

AToM does copy IP precedence values into the MPLS EXP (Traffic Class) bits to preserve QoS markings as packets traverse the MPLS core.

AToM supports the interworking feature, which allows two PE routers to connect different Layer 2 technologies - for example bridging an ATM circuit on one side to a Frame Relay circuit on the other - using the interworking option configured on the pseudowire class.

There is no AToM requirement that PE loopback addresses be /24 or /32 - while /32 is a common best practice, it is not mandated by the AToM specification.

AToM explicitly provides L2VPN support for ATM interfaces by encapsulating ATM cells or frames into MPLS pseudowires and transporting them transparently across an IP/MPLS core network.