Which statement is correct about policies in the Junos OS?
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A. B. C. D.B
Policies in the Junos OS are used to manipulate traffic and routing information as it passes through a network device. There are two types of policies: import policies and export policies.
Import policies are used to filter routes and/or traffic that are entering the device. These policies are evaluated before the device decides whether to place the information in the routing table or forward it to the next hop.
Option A is incorrect because import policies are used to filter routes that are entering the device, not to filter routes from the routing table to the forwarding table.
Option B is correct. Import policies are used to filter routes destined for the routing table. For example, an import policy could be used to filter out routes from a specific autonomous system (AS) from entering the routing table.
Option C is incorrect because import policies are used to filter routes that are entering the device, not to filter routes being sent to neighboring devices.
Option D is incorrect because import policies are used to filter routes and/or traffic that are entering the device, not to filter traffic entering the device.
In summary, import policies are used to filter routes and/or traffic that are entering the device and are evaluated before the device decides whether to place the information in the routing table or forward it to the next hop. Option B is the correct statement about import policies in the Junos OS.