In which hierarchy are routing policies defined?
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A. B. C. D.A
Routing policies in Junos are used to manipulate and control the flow of network traffic. Routing policies define how the router should select, modify, or discard packets based on certain conditions.
In Junos, routing policies are defined in the [edit policy-options] hierarchy. The [edit policy-options] hierarchy is used to configure routing policies, including policy rules, policy statements, and policy terms.
Policy rules define the conditions that must be met for the policy to take effect. Policy statements define the actions that the router should take if the conditions of the policy rule are met. Policy terms are used to group policy statements together, and they allow multiple policy statements to be associated with a single policy rule.
Routing policies can be applied at various levels in the Junos hierarchy, including the interface, protocol, and routing-instance levels. By defining routing policies in the [edit policy-options] hierarchy, these policies can be applied consistently across different levels of the configuration.
It's important to note that routing policies are different from routing protocols, which are configured in the [edit protocols] hierarchy. Routing protocols are used to exchange routing information between routers, while routing policies are used to control the flow of traffic based on conditions that may be independent of the routing protocol being used.
Therefore, the correct answer to the question is A. [edit policy-options].