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Category: JN0-643 (v.4)

Exam JN0-643: Juniper Networks Certified Internet Professional (JNCIP-ENT) (November 5th, 2014)

What must you do to ensure that the HTTP traffic preserves its DSCP value as it leaves your CoS domain?

— Exhibit –

— Exhibit —
Click the Exhibit button.
Traffic flows through your network, as shown in the exhibit. You have configured a rewrite rule on
R1 to mark HTTP traffic with a specific DSCP value.
What must you do to ensure that the HTTP traffic preserves its DSCP value as it leaves your CoS
domain?

Which configuration will achieve this?

— Exhibit –

— Exhibit —
Click the Exhibit button.
In the exhibit, Switch A is an EX4200. VLAN10 is receiving tagged as well as untagged traffic from
different ports. The administrator wants to mirror all tagged and untagged traffic entering VLAN10
to analyzer port ge-0/0/10. All VLAN tags must be preserved for traffic that is mirrored to the
analyzer port.
Which configuration will achieve this?

what is preventing the adjacency?

— Exhibit —

{master:0}[edit]
user@router# run show ospf interface vl-10.20.10.2 extensive
Interface State Area DR ID BDR ID Nbrs
vl-10.20.10.2 Down 0.0.0.0 0.0.0.0 0.0.0.0 0
TypE. Virtual, Address: 0.0.0.0, Mask: 0.0.0.0, MTU: 0, Cost: 1
Transit AreA. 0.0.0.1
Adj count: 0
Hello: 10, DeaD. 40, ReXmit: 5, Not Stub
Auth typE. None
Protection typE. None, No eligible backup
Topology default (ID 0) -> Down, Cost: 0
— Exhibit —
Click the Exhibit button.
Your company is integrating another OSPF area into your existing OSPF infrastructure. You
created a virtual link that spans Area 2 and connects Area 3 to the backbone area.
Based on the exhibit, what is preventing the adjacency?

Which BGP capability must be negotiated on the BGP session for R2 to install the routes accepted by the new po

— Exhibit –

— Exhibit —
Click the Exhibit button.
In the exhibit, an EBGP session is currently established between R1 and R2. R2 changes its
import policy to accept 10 of the routes it previously denied from R1.
Which BGP capability must be negotiated on the BGP session for R2 to install the routes accepted
by the new policy?

Which configuration statement causes the route reflector to transmit the route to its IBGP peers?

— 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…

2001:ffff::3:3 65550 43 43 0 0 18:20 Establ
inet6.0: 0/1/1/0
2001:ffff::3:4 65550 42 43 0 0 18:16 Establ
inet6.0: 0/0/0/0
2001: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
2001:1:2::/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?

What must you add to complete this configuration?

— Exhibit —
{master:0}[edit]

user@router# show class-of-service
classifiers {
inet-precedence normal-traffic {
forwarding-class best-effort {
loss-priority low code-points [ my1 my2 ];
}
}
code-point-aliases {
inet-precedence {
my1 000;
my2 001;
}
}
scheduler-maps {
one {
forwarding-class expedited-forwarding scheduler special;
forwarding-class best-effort scheduler normal;
}
}
schedulers {
special {
transmit-rate percent 30;
priority strict-high;
}
normal {
transmit-rate percent 70;

priority low;
}
}
— Exhibit —
Click the Exhibit button.
The configuration in the exhibit shows incoming traffic with specific IP precedence bits that should
be mapped to a forwarding class named best-effort.
What must you add to complete this configuration?


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