Juniper JN0-643 問題集

質問 1：
You are asked to configure OSPF for IPV4 and IPV6 route advertisement. Which two configuration accomplish the task? (Choose two)
A. [edit]
user@switchl#show protocols ospf3{
export redistribute-ipv4; area 0.0.0.0 {
interface al;
}
}
[edit]
user@switchl#show policy-options
policy-statement redistribute-ipv4{
from family inet;
to family inet6;
then accept;
}
B. [edit]
user@switch # show protocols
Nospf
{ export redistribute-ipv6;
area 0.0.0.0{
interface all;
}
}
[edit]
user@switch# show policy-options
policy-statement redistribute-ipv6{
from family inet6;
to family inet;
then accept
}
C. [edit] protocols { ospf{
area 0.0.0.0 { interface all;
}
}
ospf3 { area 0.0.0.0{
D. [edit]
user@switch# show protocols
ospf3 {
relam ipv4-unicast {
area 0.0.0.0 {
interface all:
}
}
area 0.0.0.0
interface all;
正解：D

質問 2：
-- Exhibit --
user@router> show bgp summary
Groups: 1 Peers: 3 Down peers: 0
Table Tot Paths Act Paths Suppressed History Damp State Pending
inet.0 0 0 0 0 0 0
inet6.0 1 0 0 0 0 0
Peer AS InPkt OutPkt OutQ Flaps Last Up/Dwn
State|#Active/Received/Accepted/Damped...
2 001:ffff::3:3 65550 43 43 0 0 18:20 Establ
inet6.0: 0/1/1/0
2 001:ffff::3:4 65550 42 43 0 0 18:16 Establ
inet6.0: 0/0/0/0
2 001:ffff::9:7 65550 42 43 0 0 18:00 Establ
inet6.0: 0/0/0/0
user@router> show route receive-protocol bgp 2001:ffff::3:3
inet.0: 32 destinations, 33 routes (32 active, 0 holddown, 0 hidden)
__juniper_private1__.inet.0: 4 destinations, 4 routes (2 active, 0 holddown, 2 hidden) iso.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden) mpls.0: 3 destinations, 3 routes (3 active, 0 holddown, 0 hidden)
inet6.0: 10 destinations, 14 routes (10 active, 0 holddown, 0 hidden)
Prefix Nexthop MED Lclpref AS path
2001:1:2::/64 2001:ffff::3:3 100 I
user@router> show route 2001:1:2::
inet6.0: 10 destinations, 14 routes (10 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
2 001:1:2::/64 *[OSPF3/10] 01:54:11, metric 201
> to fe80::217:cb03:2448:bd00 via fe-0/0/1.804
[BGP/170] 00:18:43, localpref 100, from 2001:ffff::3:3
AS path: I
> to fe80::217:cb03:2448:bd00 via fe-0/0/1.804
user@router> show route advertising-protocol bgp 2001:ffff::9:7
user@router> show configuration protocols bgp
group ibgpv6 {
type internal;
local-address 2001:ffff::3:5;
cluster 10.0.3.4;
neighbor 2001:ffff::3:3;
neighbor 2001:ffff::3:4;
neighbor 2001:ffff::9:7;
}
user@router>
-- Exhibit --
Click the Exhibit button.
You are using an IBGP route reflector within your network. Your route reflector has received the 2001:1:2::/64 prefix, but it is not advertising the prefix to its cluster members.
After examining the route reflector, you notice the output shown in the exhibit.
Which configuration statement causes the route reflector to transmit the route to its IBGP peers?
A. set protocols bgp group ibgpv6 multipath
B. set protocols bgp group ibgpv6 include-mp-next-hop
C. set protocols bgp group ibgpv6 accept-remote-nexthop
D. set protocols bgp group ibgpv6 advertise-inactive
正解：D

質問 3：
Your enterprise network is providing layer 2 connectivity between remote-sites using Q-in-
Q tunneling. A customer wants to ensure their connection through your network is also participating in their spanning free topology. In this scenario, which solution must be used?
A. you must configure the Q in Q tunnel to use L2PT to tunnel STP packets
B. you must configure spanning tree on the interfaces connected to the customers sites
C. you must configure the same isolation ID on both sides of the tunnel
D. you must configure spanning tree to tunnel packets
正解：A

質問 4：
-- Exhibit -

-- Exhibit --
Click the Exhibit button.
In the topology shown in the exhibit, which two BGP attributes can AS1 manipulate to influence the path that AS4 takes to reach prefixes originated by AS1? (Choose two.)
A. Local Preference
B. Origin
C. MED
D. AS Path
正解：B,D

質問 5：
-- Exhibit --
[edit protocols vstp]
'vlan all'
Cannot configure VSTP on all VLANs when more than 253 VLANs are configured.
Configure vstp vlan-group along with STP or RSTP to cover all VLANs
[edit protocols]
'vstp'
Failed to configure vstp on all vlans
error: configuration check-out failed
-- Exhibit --
Click the Exhibit button.
What are two reasons for the commit error shown in the exhibit? (Choose two.)
A. STP or RSTP is not configured along with VSTP on the switch.
B. There are more than 253 VLANs configured on the switch.
C. MSTP is not configured with VSTP.
D. The set protocols vstp vlan all configuration is not supported.
正解：B,D
解説: (Topexam メンバーにのみ表示されます)