JN0-660 Exam Questions

What are two elements that must be configured to enable LDP? (Choose two.)

Refer to the exhibit. What does 192.168.1.2 represent?

What are three reasons an OSPF neighbor ship would be stuck in ExStart? (Choose three.)

Click the Exhibit button. You are receiving the OSPF link state advertisement shown in the exhibit. What are two reasons for the displayed metric value? (Choose two.)

Click the Exhibit button. You are creating an OSPF multiarea adjacency with a link between two ABRs. Referring to the exhibit, which configuration setting must be added to the rout...

You have an AS boundary router which is also an area border router with an NSSA attached. Which two LSA types are exported into the NSSA by default? (Choose two.)

What are two valid actions that can be applied to a frame by a Layer 2 firewall filter? (Choose two)

Which two statements describe differences between IPv4 and IPv6? (Choose two)

You must configure an OSPF area that does not accept type 3 link-state advertisements (LSAs) from area 0 (other than the default route) You have configured your area to be stub, bu...

You have configured an IP-IP tunnel between Router A and Router B. Which Junos operational mode command is used to verify that the tunnel interface is up and operational?

Which IS-IS packet is used to determine the level of an IS-IS neighbor?

Router A is an OSPF router connected to both Area 0 and Area 1 Area 1 has been configured as a stub area Which two LSA types does Router A suppress from Area 1 ?

You are logged into a router and have navigated to the (edit routing-options] level of the hierarchy. You have been asked to create a static route that will use 10.10.10.1 as its p...

Click the Exhibit button. Based on the illustration of the VPLS topology shown in the exhibit, which statement is true?

Which Junos operational mode command is used to verify that load balancing is working as expected?

Which two values displayed in the output from the show spanning-tree MSTP configuration command must match on all switches participating in the same MSTP region? (Choose two)

Which role does the router ID (RID) have in the BGP route selection process?

You are logged into a router and have navigated to the [edit routing-options] level of the hierarchy. You have been asked to create a static route that will use 43 18 7 1 as its pr...

Click the Exhibit button. Referring to the network illustrated in the exhibit, how does router A reach destinations in area 49.2222?

You have recently implemented a graceful Routing-Engine switchover (GRES) and want to further reduce down time if a Routing Engine (RE) failure occurs. Which two features can be co...

Which BGP state denotes a fully operational session?

Click the Exhibit button. You work for the regional Internet service provider shown in the exhibit You have a partial BGP table and are receiving a 10 100/16 route from your upstre...

You have been asked to configure an IPv6 address for a group of interfaces that could belong on different routers. If a packet is sent to that address, it should be received by all...

Click the Exhibit button. In the exhibit, OSPF routers R1, R2, R3, and R4 come up, in order, at 1- minute intervals. Which router will be the designated router?.

What is the function of the hop limit field in the IPv6 header?

You have been asked to define a default gateway for traffic leaving a router. This route should use interface so-0/0/0 as its next-hop.Which type of route would be suited for this...

Click the Exhibit button. In the exhibit, how many full OSPF adjacencies will R3 have?

You are asked to design a Layer 2 switched topology that can automatically recover from link failures. Which type of protocol would you consider in your design?

Click the Exhibit button. When the Junos configuration shown in the exhibit is applied to the router, which routes in the forwarding table will begin load-balancing packet flows?

Using industry best practices, what is true regarding an external BGP session?

You own a home network connecting through an always-on connection and need to assign IPv6 addresses to your routers because you want to follow the guidelines spelled out in RFC 317...

Which two BGP attributes are modified by default when they are passed between external BGP peers? (Choose two)

Click the Exhibit button. In an RSTP network, the root and designated ports have been elected as shown in the exhibit. What will be the port type of port 1?

Which two statements about BGP are accurate? (Choose two.)

Which two elements contribute to the bridge ID when configuring RSTP? (Choose 2)

You want to influence how traffic enters your network. Using industry best practices, which two BGP attributes would you modify to accomplish this goal? (Choose two)

You have recently installed a second Routing Engine (RE) in your router Which two statements correctly describe the expected behavior if the primary RE fails? (Choose two.)

Which command would you use to verify the presence of VPN routes on a PE device?

Click the Exhibit button. An operator is unable to establish any IS-IS adjacencies on a router in the network. Based on the configuration shown in the exhibit, what is the problem?

Which statement is true of a Layer 2 circuit?

What are three circumstances under which a router sends link-state PDUs (LSPs)? (Choose three)

In an RSTP network, which combination of port types can exist on the root bridge?

In the evaluation of an RSTP configuration BPDU. Which two values are contained in the Bridge ID value? (Choose two)

Under which Junos configuration hierarchy is a load-balancing policy applied?

Which two configuration elements are defined under an MSTP instance? (Choose two)

Click the Exhibit button. Given the network topology shown in the exhibit, you are configuring a GRE tunnel from Router A to Router C. Which interface configuration on Router A wil...

Which protocol is used by wired Ethernet to manage frame collisions?

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...

You would like two LDP routers on opposite sides of your network to become neighbors. Which LDP message is used to form this relationship?

In which two environments would BGP add value? (Choose two)