单项选择题

What is the purpose of unicast reverse path forwarding?（）

A. to validate packet receipt on interfaces where the traffic should be received
B. to forward packets out the interfaces where the traffic should be received
C. to forward packets out the interfaces where the traffic should be sent
D. to validate packet receipt on interfaces where the traffic should be sent

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单项选择题

What is the default action for firewall filters?（）

A. accept
B. reject
C. discard
D. log

单项选择题

Which statement is correct about policies in the Junos OS?（）

A. Export policies are used to filter routes from the RE forwarding table to the PFE forwarding table.
B. Export policies are used to filter routes destined for the routing table.
C. Export policies are used to filter routes being sent to neighboring devices.
D. Export policies are used to filter traffic leaving the device.

单项选择题

Which statement is correct about policies in the Junos OS?（）

A. Import policies are used to filter routes from the routing table to the forwarding table.
B. Import policies are used to filter routes destined for the routing table.
C. Import policies are used to filter routes being sent to neighboring devices.
D. Import policies are used to filter traffic entering the device.