A layer 3 switch can move packets between subnets based on which of the following criteria?（）A、802.1q tagB、PortC、ApplicationD、IP address

A. The design supports multiple server subnets.

B. An end-user sees the IP address of the real server.

C. SLB routes between the outside and inside subnets.

D. The source or destination MAC address is rewritten, but the IP addresses left alone.

E. SLB acts as a "bump in the wire" between servers and upstream firewall or Layer 3 devices.

A. Layer 3 MPLS VPNs can forward only IP packets

B. Layer 2 MPLS VPNs can forward any network protocol

C. MPLS label paths are automatically formed based on Layer 2 frames

D. Layer 3 MPLS VPNs can forward any network protocol based on Layer 2 frames

E. In Layer 2 MPLS VPNS, the service provider controls the customer Layer 3 policies

A. 802.1q tag

B. Port

C. Application

D. IP address

A. Server-to-server traffic always remains in the core layer.

B. The recommended practice is for the core infrastructure to be in Layer 3.

C. The boundary between Layer 2 and Layer 3 should be implemented in the aggregation layer.

D. The Cisco Express Forwarding hashing algorithm is the default, based on the IP address and Layer 4 port.

E. Core layer should run BGP along with an IGP becauseiBGP has a lower administrative distance than any IGP.

A. use a Layer 2 link between distribution switches

B. use a Layer 3 link between distribution switches

C. use a redundant link to the core

D. use a Layer 3 link between distribution switches with route summarization

A. all interfaces in the path toward the destination

B. all networks in the path toward the destination

C. adjacent next hop router in the path toward the destination

D. all routers in the path toward the destination

E. all interfaces through which the packets can be routed

F. type of service and precedence in the IP packets