Which of the following statements are TRUE about fixed ports and cards of AR routers?

Huawei'sAR routersoffer flexible configurations for fixed ports and modular cards, enabling them to adapt to various networking scenarios. Key points include:

LAN-to-WAN switching:LAN ports can be converted to WAN ports using theundo portswitchcommand, allowing greater flexibility in network design.

WAN-to-LAN switching:Some AR router models support converting WAN ports to LAN ports, depending on the hardware and software capabilities.

Layer 2 card limitations:Layer 2 cards configured with VLANIF interfaces can perform basic Layer 3 forwarding but lack advanced features like NAT, MPLS, IPsec, and HQoS.

The claim thatall Layer 2 cards support LAN/WAN switchingis incorrect. Only specific models and configurations support this functionality, making option D false.