JN0-660 Exam Questions

Click the Exhibit button. On your MX Series router, traffic using the critical scheduler is out of profile. All other data is currently in profile. Referring to the exhibit, which...

Click the Exhibit button. All networks shown in the exhibit contain more than one BGP speaking router. You operate ISP A. You must ensure that customer Y sends their traffic to you...

Which two statements are true about OSPFv3? (Choose two.)

Click the Exhibit button. As shown in the exhibit, you have an adaptive LSP that requires 85 Mbps. The LSP is configured with a primary path and a secondary path in standby mode. A...

You have configured MPLS and RSVP in your network using all of the Junos defaults. You established an LSP in your network which is reporting an up status but no traffic is using it...

You have been asked to provision a service provider's network to accommodate Layer 3 VPNs as defined in RPC 4364. Which three tasks must be performed before the provider core is re...

Which statement is true about the operation of Layer 2 VPNs?

Click the Exhibit button. Given the drop profile in the exhibit, what is the drop probability when the buffer reaches 90% full?

Click the Exhibit button. All routers in the exhibit are running IS-IS level 2 routing. The wide- metrics-only parameter is configured on all routers. Which metric does R1 see for...

Click the Exhibit button. Referring to the exhibit, which type of traffic protection mechanism is used for the LSP?

Which operational mode command displays the number of configured forwarding classes?

Your multicast receivers are indirectly connected to an MX Series router. The receivers need to join multicast group 224.2.2.2. What must be configured in IGMP to receive report me...

Your OSPF network includes an NSSA. Which LSA type is injected into the NSSA by the ASBR?

Click the Exhibit button. Your router should be configured with a rewrite rule which alters the default behavior of expedited- forwarding as shown in the exhibit. Which configurati...

You have assigned target:65432:100 as the route target for Customer A's BGP Layer 2 VPN. The PE1 router VRF is configured with vrf-target export target:65432:100. Which configurati...

Click the Exhibit button. Based on the exhibit, what do you expect to find in the configuration on R1 and R4?

IS-IS is configured to support both IPv4 and IPv6 routing. Which statement is true?

Click the Exhibit button. You are the administrator of AS 65000. In the exhibit, there are four links between your network (AS 65000) and your upstream provider (AS 65001). You hav...

Which two statements correctly describe BGP operation? (Choose two.)

Click the Exhibit button. In the exhibit, on which label value does PE1 expect to receive traffic from CE3 for VPN A?

Click the Exhibit button. Two PE routers in your Layer 3 VPN are not advertising customer VPN routes to each other. Referring to the output in the exhibit, which configuration para...

You have been asked to make a configuration which inherits the statements in a predefined configuration group. What will accomplish this?

Click the Exhibit button. The exhibit contains a BGP topology. R1 and R2 are peering using IBGP. R2 and R3 are peering with EBGP. R1 is not installing any routes from R3 due to nex...

Click the Exhibit button. Based on the output shown in the exhibit, which statement is correct?

Which statement is true about ASM and/ or SSM multicast?

Click the Exhibit button. CE1, CE2, and CE3 are part of a single VPLS VPN. R1, R2, and R3 are PEs in the provider network, and have just been powered on. The VPLS domain has conver...

Click the Exhibit button. What would happen if the guaranteed-rate command is removed from the configuration shown in the exhibit?

In an interdomain multicast deployment scenario, an RP1 is in AS1 and an RP2 is in AS2. MSDP is configured between RP1 and RP2.In which routing table on RP1 are source-active messa...

Click the Exhibit button. In the exhibit, R1 is a route reflector and R2 through R5 are clients in a full mesh configuration. R2 should only receive one copy of all routes sent fro...

Click the Exhibit button. A customer is using the Layer 3 VPN multicast technology shown in the exhibit. Which statement is true?

You are facing BGP scaling issues and decide to add dedicated route reflectors to your network. You notice that VPN routes are not being advertised by your route reflectors. Which...

Click the Exhibit button. R3 and R4 want to establish an EBGP session between each other's loopback addresses. They have each configured static routes to the other's loopback addre...

What is the purpose of the no-cspf command?

Click the Exhibit button. R2 is announcing the 10.200/16 network to its IS-IS neighbors. No routing policies have been applied to R3. Referring to the exhibit, will R5 have 10.200/...

An OSPF network has been designed with multiple areas to improve scalability. Which two statements are true? (Choose two.)

Click the Exhibit button. Customer A is complaining that routes advertised from the CE2 router are not being received on the CE1 router. The physical topology of the network is CE1...

Click the Exhibit button. In the exhibit, what happens if the source starts sending multicast traffic toward R1 and there are receivers registered at the RP?

Click the Exhibit button. You have an MPLS network and you have configured most-fill as a CSPF tiebreaker. Using the information in the exhibit, which path will be used to signal a...

Which two configuration parameters are required to configure a BGP-signaled VPLS service? (Choose two.)

Click the Exhibit button. Referring to the exhibit, which statement is correct?

Click the Exhibit button. The IGP is IS-IS. Routes from R1 need to be present on R6. Referring to the exhibit, what will accomplish this task?

Click the Exhibit button. Referring to the exhibit, PE2 requires the loopback of PE1 to appear in the inet.3 routing table as a labeled route. Which configuration parameter is spec...

You have been asked to provision a service provider's network to accommodate Layer 3 VPNs as defined in RFC 4364.Which three tasks must be performed before the provider network is...

Your company has purchased two new Juniper Networks MX480 routers. Your manager has asked you to add these two devices to the existing ISIS network. Which two rules about ISIS adja...

Which three functions are performed by an OSPF area border router (ABR)? (Choose three)

Click the Exhibit button. In the exhibit, R1 and R2 have a static default route configured that points toward the provider. Both routers redistribute the default route into OSPF. R...

You are provisioning a new customer for an LDP Layer 2 circuit. You have assigned them VLAN 600 on interface ge-1/0/0.Which configuration correctly provisions the interface?

Click the Exhibit button. In the exhibit, R2 and R3 are both rendezvous points. Assume that R2 fails. Which RP redundancy method could converge the multicast stream and RP as quick...

Which two statements are true when configuring OSPF authentication? (Choose two.)

Which three statements are true about the BGP community attribute? (Choose three.)