单项选择题

Which statement is correct regarding exception traffic processing?（）

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

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多项选择题

What are two functions of the RE?（）

A. to maintain routing tables
B. to forward traffic toward its destination
C. to manage the PFE
D. to implement various services such as policing, stateless firewall filtering, and class of service

单项选择题

Which statement is correct regarding the Junos OS?（）

A. The same Junos OS image is used on all Junos devices.
B. The Junos OS provides separation between the control and forwarding planes.
C. Each Junos OS image is based on model-specific source code.
D. The Junos OS creates a secondary instance of the kernel to ensure redundancy.

单项选择题

What is the central processing component of the forwarding plane?（）

A. PFE
B. RE
C. Junos OS
D. forwarding table