Free Practice Questions for Juniper JN0-664 Exam

What is the correct order of packet flow through configurable components in the Junos OS CoS features?

• Multifield Classifier -> Behavior Aggregate Classifier -> Input Policer -> Forwarding Policy Options -> Fabric Scheduler -> Output Policer -> Rewrite Marker -> Scheduler/Shaper/RED
• Behavior Aggregate Classifier -> Multifield Classifier -> Input Policer -> Forwarding Policy Options -> Fabric Scheduler -> Output Policer -> Scheduler/Shaper/RED -> Rewrite Marker
• Behavior Aggregate Classifier -> Input Policer -> Multifield Classifier -> Forwarding Policy Options -> Fabric Scheduler -> Output Policer -> Scheduler/Shaper/RED -> Rewrite Marker
• Behavior Aggregate Classifier -> Multifield Classifier -> Input Policer -> Forwarding Policy Options -> Fabric Scheduler -> Scheduler/Shaper/RED -> Output Policer -> Rewrite Marker

A packet is received on an interface configured with transmission scheduling. One of the configured queues In this scenario, which two actions will be taken by default on a Junos device? (Choose two.)

• The excess traffic will be discarded
• The exceeding queue will be considered to have negative bandwidth credit.
• The excess traffic will use bandwidth available from other queueses
• The exceeding queue will be considered to have positive bandwidth credit

Which two statements are correct about reflecting inet-vpn unicast prefixes in BGP route reflection? (Choose two.)

• Route reflectors do not change any existing BGP attributes by default when advertising routes.
• A BGP peer does not require any configuration changes to become a route reflector client.
• Clients add their originator ID when advertising routes to their route reflector
• Route reflectors add their cluster ID to the AS path when readvertising client routes.

Which two statements describe PIM-SM? (Choose two)

• Routers with receivers send join messages to their upstream neighbors.
• Routers without receivers must periodically prune themselves from the SPT.
• Traffic is initially flooded to all routers and an S,G is maintained for each group
• Traffic is only forwarded to routers that request to join the distribution tree.

You are responding to an RFP for a new MPLS VPN implementation. The solution must use LDP for signaling and support Layer 2 connectivity without using BGP The solution must be scalable and support multiple VPN connections over a single MPLS LSP The customer wants to maintain all routing for their Private networkIn this scenario, which solution do you propose?

• circuit cross-connect
• BGP Layer 2 VPN
• LDP Layer 2 circuit
• translational cross-connect

Which two statements are correct about the customer interface in an LDP-signaled pseudowire? (Choose two)

• When the encapsulation is vlan-ccc or extended-vlan-ccc, the configured VLAN tag is not included in the control plane LDP advertisement
• When the encapsulation is ethernet-ccc, only frames without a VLAN tag are accepted in the data plane
• When the encapsulation is vLan-ccc or extended-vlan-ccc, the configured VLAN tag is included in the control plane LDP advertisement
• When the encapsulation is ethemet-ccc, tagged and untagged frames are both accepted in the data plane.

Which two statements are correct regarding bootstrap messages that are forwarded within a PIM sparse mode domain? (Choose two.)

• Bootstrap messages are forwarded only to routers that explicitly requested the messages within the PIM sparse-mode domain
• Bootstrap messages distribute RP information dynamically during an RP election.
• Bootstrap messages are used to notify which router is the PIM RP
• Bootstrap messages are forwarded to all routers within a PIM sparse-mode domain.

When building an interprovider VPN, you notice on the PE router that you have hidden routes which are received from your BGP peer with family inet labeled-unica3t configured.Which parameter must you configure to solve this problem?

• Under the family inet labeled-unicast hierarchy, add the explicit null parameter.
• Under the protocols ospf hierarchy, add the traffic-engineering parameter.
• Under the family inet labeled-unicast hierarchy, add the resolve-vpn parameter.
• Under the protocols mpls hierarchy, add the traffic-engineering parameter

You want to ensure that L1 IS-IS routers have only the most specific routes available from L2 IS-IS routers. Which action accomplishes this task?

• Configure the ignore-attached-bit parameter on all L2 routers.
• Configure all routers to allow wide metrics.
• Configure all routers to be L1.
• Configure the ignore-attached-bit parameter on all L1 routers

You are a network architect for a service provider and want to offer Layer 2 services to your customers You want to use EVPN for Layer 2 services in your existing MPLS network.Which two statements are correct in this scenario? (Choose two.)

• Segment routing must be configured on all PE routers.
• VXLAN must be configured on all PE routers.
• EVPN uses Type 2 routes to advertise MAC address and IP address pairs learned using ARP snooping
• EVPN uses Type 3 routes to join a multicast tree to flood traffic.