Juniper JN0-643 問題集

質問 1：
-- Exhibit -

-- Exhibit --
Click the Exhibit button.
Referring to the exhibit, you are asked to prevent the 184.16.1.0/24 route from entering the backbone.
Which configuration statements would accomplish the task?
A. On router R3, issue the set protocols ospf area 3 area-range 184.16.1.0/24 restrict command.
B. On router R3, issue the set protocols ospf area 3 nssa area-range 184.16.1.0/24 restrict command.
C. On router R1, issue the set protocols ospf area 3 nssa area-range 184.16.1.0/24 restrict command.
D. On router R3, issue the set protocols ospf area 0 area-range 184.16.1.0/24 restrict command.
正解：B

質問 2：
-- Exhibit --
user@R1> show pim join extensive
InstancE. PIM.master Family: INET
R = Rendezvous Point Tree, S = Sparse, W = Wildcard
Group: 224.50.50.50
SourcE. *
RP: 10.100.100.10
Flags: sparse,rptree,wildcard
Upstream interfacE. ge-0/0/10.0
Upstream neighbor: 172.28.55.5
Upstream statE. Join to RP
UptimE. 00:00:10
Downstream neighbors:
InterfacE. ge-0/0/2.0
172.28.57.5 StatE. Join Flags: SRW Timeout: 209
Group: 224.50.50.50
SourcE. 10.100.10.10
Flags: sparse,spt
Upstream interfacE. ge-0/0/6.0
Upstream neighbor: 172.28.56.5
Upstream statE. Join to Source, Prune to RP
UptimE. 00:00:10
Keepalive timeout: 276
Downstream neighbors:
InterfacE. ge-0/0/2.0
172.18.57.5 StatE. Join Flags: S Timeout: 209
-- Exhibit --
Click the Exhibit button.
Referring to the output shown in the exhibit, which three statements are true about the PIM implementation on R1? (Choose three.)
A. Interface ge-0/0/6 provides the shortest path to the source.
B. R1 is receiving multicast traffic over the RPT.
C. Interface ge-0/0/10 provides the shortest path to the source.
D. R1 is receiving multicast traffic over the SPT.
E. The multicast stream flows from 10.100.10.10 to 172.18.57.5.
正解：A,D,E

質問 3：
-- Exhibit --
user@router> show ospf route
Topology default Route Table:
Prefix Path Route NH Metric NextHop Nexthop
Type Type Type Interface Address/LSP
192.168.1.0/24 Intra Network IP 10 ge-0/0/1.0
-- Exhibit --
Click the Exhibit button.
Which two configurations result in the output shown in the exhibit? (Choose two.)
A. [edit protocols ospf]
user@router# show
reference-bandwidth 100m;
area 0.0.0.0 {
interface ge-0/0/1.0;
}
B. [edit protocols ospf]
user@router# show
reference-bandwidth 1m;
area 0.0.0.0 {
interface ge-0/0/1.0 {
metric 10;
}
}
C. [edit protocols ospf]
user@router# show
reference-bandwidth 1g;
area 0.0.0.0 {
interface ge-0/0/1.0;
}
D. [edit protocols ospf]
user@router# show
reference-bandwidth 10g;
area 0.0.0.0 {
interface ge-0/0/1.0;
}
正解：B,D

質問 4：
-- Exhibit -

-- Exhibit --
Click the Exhibit button.
You are asked to connect Area 2 to the backbone.
Which configuration would be required on R3?
A. [edit protocols ospf3]
user@R3# show
area 0.0.0.1 {
virtual-link neighbor-id 192.168.1.2 transit-area 0.0.0.1;
interface ge-0/0/5.0;
}
B. [edit protocols ospf3]
user@R3# show
area 0.0.0.0 {
virtual-link neighbor-id 192.168.1.2 transit-area 0.0.0.1;
interface ge-0/0/5.0;
}
C. [edit protocols ospf3]
user@R3# show
area 0.0.0.0 {
virtual-link neighbor-id 10.0.10.1 transit-area 0.0.0.1;
interface ge-0/0/5.0;
}
D. [edit protocols ospf]
user@R3# show
area 0.0.0.0 {
virtual-link neighbor-id 192.168.1.2 transit-area 0.0.0.1;
interface ge-0/0/5.0 {
interface-type p2p;
}
}
正解：B

質問 5：
You are asked to establish a single EBGP peering across two physical interfaces to your
ISP.
Which BGP feature should you use?
A. multipath
B. multihop
C. allow
D. accept-remote-nexthop
正解：B