JN0-664 Referring Practice Questions
The free JN0-664: Service Provider Routing and Switching, Professional (JNCIP-SP) questions that deal with referring, with answers and explanations. The full bank and the timed practice test cover every topic the exam asks about.
Question #2
Exhibit Referring to the exhibit, CE-1 is providing NAT services for the hosts at Site 1 and you must provide Internet access for those hosts Which two statements are correct in this scenario? (Choose two.)
Select 2 answers.
Correct answer: B, C
Explanation
To provide Internet access for the hosts at Site 1, you need to configure static routes in the main routing instance on PE-1 that point to the VPN-A.inet.0 table as the next hop. This allows PE-1 to forward traffic from the Internet to CE-1 using MPLS labels and vice versa. You need to configure two static routes: one for the 10.1.2.0/24 prefix that represents the private network of Site 1, and one for the 203.0.113.1/32 prefix that represents the public IP address of CE-1.
Question #4
Exhibit Referring to the exhibit, which two statements are true? (Choose two.)
Select 2 answers.
Correct answer: B, C
Explanation
This is an EVPN Type-2 route, also called a MAC/IP advertisement route, that is used to advertise host IP and MAC address information to other VTEPs in an EVPN network. The route type field in the EVPN NLRI has a value of 2, indicating a Type-2 route. The device advertising this route into EVPN is 192.168.101.5, which is the IP address of the VTEP that learned the host information from the local CE device. This IP address is carried in the MPLS label field of the route as part of the VXLAN encapsulation.
Question #7
Exhibit Referring to the exhibit, you must provide Internet access for VPN-A using CE-1 as the hub CE. Which two statements are correct in this situation? (Choose two.)
Select 2 answers.
Correct answer: A, D
Explanation
To provide Internet access for VPN-A using CE-1 as the hub CE, you need to do the following: • You must use RIB groups to leak routes between the inet.0 and vpn-a.inet.0 tables on PE-1 and CE-1. RIB groups are routing options that allow you to import routes from one routing table into another routing table based on certain criteria. In this scenario, you need to configure RIB groups on PE-1 and CE-1 to import Internet routes from inet.0 into vpn-a.inet.0 and vice versa. • Internet traffic from Site 2 takes the path of PE-2 -> PE-1 -> CE-1 -> PE-1 -> GW-1. This is because Site 2 does not have direct Internet access and needs to use CE-1 as its default gateway for Internet traffic. Site 2 sends its Internet traffic to PE-2, which forwards it to PE-1 based on VPN-A routes. PE-1 then sends it to CE- 1 based on RIB group import policy. CE-1 then sends it back to PE-1 based on its default route pointing to GW-1. PE-1 then forwards it to GW-1 based on RIB group import policy again.
Question #8
Exhibit Referring to the exhibit, which statement is true?
Correct answer: D
Explanation
The auto-export parameter is a routing option that allows a routing instance to share routes with other routing instances or the master routing table. The auto- export parameter automatically exports routes from one routing instance to another based on the route target communities attached to the routes. In this scenario, the 10.101.1.0/24 route will be shared if the auto-export parameter is configured under [edit routing-options] hierarchy level.
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