JN0-660 Exam Questions

An IS-IS level 1-only router is configured within a larger multilevel hierarchy. Which OSPF area type resembles the routing information in the L1 router's table?

Click the Exhibit button. The exhibit contains a sample trace file of a BGP update message. Which two statements are true? (Choose two.)

Click the Exhibit button. Your employer is ISP A. Your customers must be able to reach customers of both ISP B and ISP C, but your network must not allow transit traffic between IS...

After configuring OSPF between two routers you check for an adjacency. You see that the adjacencies are not coming up on an Ethernet segment. What are two reasons that would cause...

Click the Exhibit button. You are asked to configure an OSPF network based on the topology shown in the exhibit. Area 1 must not receive Type 5 LSAs from the backbone, but must be...

Click the Exhibit button. In the exhibit, NG-MVPN is used for a Layer 3 VPN. Which two statements are valid? (Choose two.)

What are three valid BGP message types? (Choose three.)

Router A receives two similar route advertisements from different BGP peers.What would cause a route to be selected in this scenario?

Click the Exhibit button. In the exhibit, R1 has a loopback address of 192.168.1.1. Its loopback interface is included in OSPF Area 1.Which two statements are true? (Choose two.)

Click the Exhibit button. You are provisioning a full-mesh BGP Layer 2 VPN for Customer A. The customer has four remote sites in their network. Using best practices, you assigned i...

Which statement is true about IS-IS?

Click the Exhibit button. In the exhibit, network 172.16.0.0/16 is redistributed into IS-IS in Area 49.0002. R1 must use R2 to access 172.16.0.0/16. All other traffic leaving Area...

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

What does the Junos command advertise-inactive allow?

You manage an MPLS network. You are asked to classify traffic using the EXP bits from ingress to egress. What will allow you to accomplish this?

Click the Exhibit button. The routers shown in the exhibit are connected in a full BGP mesh. R1 is the route reflector and R2 through R5 are clients. R3 should only receive one cop...

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...

Junos scripts can be written in which two languages? (Choose two.)

Click the Exhibit button. In the exhibit, all routers within each AS are configured for Anycast RP. All intra-AS routers are configured within the same MSDP mesh group. Inter-AS mu...

You are evaluating a routing policy for an ISP and you find the ^42+ .* (23|9)$ regular expression. Which three AS paths match the regular expression? (Choose three.)

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...

The network design team has decided to activate multicast in the network. Auto-RP has been selected as the RP mechanism. Which PIM operational mode must be enabled in this network?

Click the Exhibit button. Area 1 has three network links. You need to summarize the network addresses in Area 1 so that Area 0 sees one route representing the network links. A rout...

Click the Exhibit button. R3 and R4 want to establish an EBGP session between each other's loopback addresses. Static routes have been configured for the loopback addresses and you...

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

Click the Exhibit button. A customer has the configuration shown in the exhibit applied to the VRF C-PIM domain. What can you determine from this configuration?

Click the Exhibit button. You manage an MX series router (with 100 ms buffer size per port) that includes the configuration shown in the exhibit. Traffic marked with DSCP 000101 is...

Click the Exhibit button. R2 and R3 advertise a default route into Area 1.Based on the configurations in the exhibit, which statement is true? (Choose two.)

Click the Exhibit button. R1 and R2 are directly connected using the interfaces shown in the exhibit. R1 can ping R2's interface, and R2 can ping R1's interface. The IS-IS adjacenc...

Click the Exhibit button. The output in the exhibit was captured on an interface. Which three statements are true about the configuration on the router with hostname SaoPaulo? (Cho...

Click the Exhibit button. Referring to the exhibit, you want to save CPU processing load on the PE3 router by preventing the reception of routes belonging to Customer B. Which Laye...

Click the Exhibit button. Traffic is flowing through the interfaces in the exhibit as follows: On ge-0/0/2.0, IPv4 traffic has a throughput rate of 4 Mbps, and the burst size count...

Router R5 has the overload parameter configured. Which statement is true?

Click the Exhibit button. You work for ISP A. Customers of both ISP B and ISP C must be able to reach all of your customers, but your network must not allow transit traffic between...

Click the Exhibit button. In the exhibit, Area 1 and Area 2 are configured as not-so-stubby areas. RIP network 192.168.100.0/24 is redistributed into OSPF in Area 1.Which three sta...

Click the Exhibit button. Referring to the exhibit, your network management systems have alerted you to a loss of connectivity to the CE2 router in your Layer 3 VPN. The loopback a...

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

Click the Exhibit button. You are configuring a new PE router in your Layer 3 VPN. A remote PE router is using the configuration shown in the exhibit. Which configuration is needed...

Click the Exhibit button. A LDP Layer 2 circuit is shown for VPN A and VPN B. LDP tunneling over RSVP is activated on P1 and P2. Referring to the exhibit, which statement is true a...

What is a limitation of LDP?

Click the Exhibit button. Customer A is complaining that CE1 and CE2 cannot form an OSPF adjacency across your LDP Layer 2 circuit. The physical topology of the network is CE1-PE1-...

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

Click the Exhibit button. Referring to the OSPF link metrics in the exhibit, which path will traffic from R6 take to reach R1?

Click the Exhibit button. You work for ISP A, as shown in the exhibit, and must configure R1 to use load balancing across both available links to ISP B's network. Which command do...

Click the Exhibit button. The exhibit shows the output of a Junos show bgp neighbor command. Which two statements are true? (Choose two.)

Click the Exhibit button. On your MX Series router, traffic using the voice scheduler has exceeded its transmit rate. All other data is currently in profile. Referring to the exhib...

You are asked to design a Layer 2 VPN service for a service provider network that supports Ethernet and ATM transport. Which two Layer 2 VPN technologies will meet this requirement...

Click the Exhibit button. You are an employee of ISP A. You must not allow traffic between ISP B and ISP C to cross your network, but customers of ISP B and ISP C must be able to r...

An LDP Layer 2 circuit is configured for VPN A and VPN B. Which three statements are true regarding LDP Layer 2 circuit signaling? (Choose three.)

Your are the administrator for a network that uses IS-IS as its IGP. As the network grows, you find that the protocol's default capabilities for setting metrics is limiting your op...