下列关于工程项目组成的说明，正确的是（)。A．具有独立的设计文件，并能形成独立使用功能的建筑物

A. Transit traffic is handled by the RE only

B. Transit traffic is handled by the PFE only

C. Transit traffic is handled by both the RE and the PFE

D. Transit traffic is not handled by the RE or the PFE

A. The PFE controls the RE by providing Layer 2 and Layer 3 forwarding tables

B. The PFE implements advanced services such as policing, stateless firewall filtering, and class of service

C. The PFE sends traffic to the RE for systematic packet forwarding

D. The PFE receives hardware and environmental status messages from the RE

A. Traffic addressed to the chassis that requires some form of special handling by the RE before it can be forwarded out an egress port.

B. Traffic that enters an ingress port, is compared against the forwarding table, and is forwarded out an egress port.

C. Any traffic that requires the generation of an ICMP message.

D. Traffic that requires some form of special attention and does not pass through the device.

In London, how does they solve the problem of the traffic congestion？

A．They take a completely-free bus service.

B．They experimented a very cheap bus service.

C．Part of the street is for buses only.

D．They closed the streets to cars.

According to Larson, to redress the traffic problem, ______.

A．rapid mass transit system must be introduced

B．overall strategies must be experimented

C．a fundamental shift of notions must be taken

D．a better understanding of the root of traffic problems must be reached

According to Larson, to redress the traffic problem, ______.

A．rapid mass transit system must be introduced

B．overall strategies must be experimented

C．a fundamental shift of notions must be taken

D．a better understanding of the root of traffic problems must be reached

According to Larson, to redress the traffic problem,

A．rapid mass transit system must be introduced.

B．overall strategies must be experimented.

C．a fundamental shift of notions must be taken.

D．a better understanding of the root of traffic problems must be reached.

In London, how does they solve the problem of the traffic congestion？

A．They take a completely-free bus service.

B．They experimented a very cheap bus service.

C．Part of the street is for buses only.

D．They closed the streets to cars.

In London, how does they solve the problem of the traffic congestion？

A．They take a completely-free bus service.

B．They experimented a very cheap bus service.

C．Part of the street is for buses only.

D．They closed the streets to cars.

A. Exception traffic is only handled by the PFE

B. Exception traffic is rate-limited across the internal link to protect the RE

C. Exception traffic is not prioritized during times of congestion

D. Exception traffic is forwarded based on forwarding table entries