Juniper JN0-661 問題集

質問 1：
Click the Exhibit button.
[edit] [edit]
lab@r1# show protocols lab@r2# show protocols
ospf3 { ospf3 {
area 0.0.0.0 { area 0.0.0.0 {
interface 1o0.0; interface 1o0.0;
interface ge-1/0/6.0; interface ge-1/0/7.0;
}
}

lo0 = 172.16.100.1/32 [edit]
fc00:1000::1/128 lab@r2# show protocols
ospf3 {
area 0.0.0.0 {
interface 1o0.0;
interface ge-1/1/7.0;
interface ge-1/1/6.0;
}
}
You must ensure that r1's IPv4 loopback address exists in r3's inet 0 routing table.
Referring to the exhibit, which statement is true?
A. A policy can be configured on r1 to redistribute 172.16.100.1/32 into OSPFv2, which would cause r3 to eventually learn the route and place it into inet 0.
B. A policy can be configured on r1 to redistribute 172.16.100.1/32 into OSPFv3, which would cause r3 to eventually learn the route and place it into inet 0.
C. An IPv4 unicast realm can be enabled on each router.
D. A RIB group can be configured on r3 to copy that route into inet 0 because
172.16.100.1/32 exists in r3's inet6.0 table.
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 2：
PE1 and PE2 provide a BGP-signaled VPLS service named VPN Blue. PE1 has site ID 2, label base 2500, and label offset 1. PE2 has site ID 4, label base 3000, and label offset 1.
Which label does PE2 expect to receive on VPLS VPN Blue traffic received from PE1 site ID 2?
A. 2505
B. 2503
C. 3001
D. 5499
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 3：
Click the Exhibit button.

As a network administrator, you are asked to configure the VPN-B routing instance so that P routers are masked in CE2-to-CE5 trace routes. For the VPN-A routing instance, P routers should appear in CE1-to-CE4 trace routes.
Referring to the exhibit, which two actions achieve this task? (Choose two.)
A. Add the no-vrf-propagate-ttl statement to the VPN-B routing instance on PE1.
B. Add the no-vrf-propagate-ttl statement to the VPN-B routing instance on PE2.
C. Add the no-vrf-propagate-ttl statement on egress router PE2.
D. Add the no-vrf-propagate-ttl statement on transit router P.
正解：A,D
解説: (Topexam メンバーにのみ表示されます)

質問 4：
What are two characteristics of L3VPNs? (Choose two.)
A. Multiprotocol BGP is required for L3VPNs to function correctly.
B. Matching route distinguishers are required for L3VPNs to function correctly.
C. The IPv4 NLRI is required for L3 VPNs to function correctly.
D. Matching route targets are required for L3VPNs to function correctly.
正解：B,D
解説: (Topexam メンバーにのみ表示されます)

質問 5：
Refer to the exhibit.

What are two ways to resolve the error BGP label allocation failure: Need a next hop address on LAN? (Choose two.)
A. Configure a /32 static route with the next hop as itself to any remote address on the network assigned to the CE-facing interface.
B. Configure vrf-table-label in the routing-instance.
C. Resolve the MPLS issue between the PE routers.
D. Configure a static ARP entry on fe-l/#3.0.
正解：A,B