What is a key role for the access layer in a hierarchical network design?

A. The access layer provides a security, QoS, and policy trust boundary.

B. The access layer provides an aggregation point for services and applications.

C. The access layer serves as a distribution point for services and applications.

D. The access layer can be used to aggregate remote users.

Refer to the exhibit.

You are designing an MPLS network with Layer 3 VPNs, where the traffic path must be the same in both directions inside the MPLS network to ensure that symmetric routing occurs. The sites are connected to two PE routers. Which two design considerations will allow you to achieve this symmetric routing? (Choose two.)

A. When MPLS TE is used, the bidirectional TE tunnel automatically provides symmetric routing.

B. The MPLE TE tunnels should be set up in both directions so that the same path is used.

C. There should not be any equal cost paths for IGP inside the MPLS backbone, the IGP routing should use the same path in both directions, and the BGP routing does not matter.

D. There should not be any equal cost paths for BGP inside the MPLS backbone, the BGP routing should use the same path in both directions, and the IGP routing does not matter.

E. There should not be any equal cost paths for the IGP and the BGP inside the MPLS backbone, and both IGP and BGP routing should use the same path in both directions.

An enterprise company needs to transport multicast traffic between its hub-and-spoke WAN routers over an MPLS Layer 3 VPN provider that does not currently support multicast. Which option describes how this enterprise how this enterprise can achieve this requirement in a cost-effective way?

A. Use MSDP over the WAN.

B. Enable multicast routing on the WAN physical and tunnel interfaces.

C. Create multicast-enabled GRE tunnels over the WAN between the hub-and-spoke routers.

D. Provide an Internet link to each site and use DMVPN over the Internet.

Which load balancing option for iP-only traffic is the least efficient in terms of Layer 2 EtherChnnel physical links utilization?

A. on a per port number basis

B. on a per destination MAC address basis

C. on a per destination IP address basis

D. on a per source IP address basis

What two options are significant drivers for 5G in IoT networks? (Choose two)

A. Energy Efficiency

B. Lower Latency

C. Mass Connectivity

D. Programmability

E. Higher data rates