JUNOS Enterprise Routing

Chapter Review Questions

1. Which RP dissemination mechanism supports load balancing within the same group?

   1. Auto-RP

   2. Anycast-RP

   3. Bootstrap

   4. Static

2. Which RP dissemination mechanism supports load balancing on a group-by-group basis?

   1. Auto-RP

   2. Anycast-RP

   3. Bootstrap

   4. Static

3. Which methods can you use to scope bootstrap messages?

   1. This is not possible given the hop-by-hop forwarding using the All PIM Routers address

   2. By configuring bootstrap import or export policy

   3. By configuring RP register policy

   4. By configuring PIMv2 on external interfaces

4. Which correctly describes sparse-dense mode operation?

   1. Flooding all traffic until a prune is received, then switching to sparse mode

   2. Operating in sparse mode until a join is received, then switching to dense mode

   3. Operating in sparse mode, with the exception of specific groups that are treated as dense

   4. Sparse-dense mode is needed to support Anycast-RP

5. Which correctly describes PIM register policy?

   1. It allows you to filter register messages to control RP usage

   2. It controls which C-RPs can register with the BSR for inclusion in the RP set

   3. It supports Anycast-RP by allowing inter-RP communication regarding active sources

   4. It controls when the last hop router decides to join an SPT

6. Which correctly describes the default JUNOS software PIM sparse mode behavior?

   1. The first hop routers initiates an SPT join as soon as the first packet is sent

   2. The last hop router initiates an SPT join as soon as the first packet is received

   3. The first hop router initiates an RPT join before the source becomes active