Vendor: Juniper
Certifications: JNCIP
Exam Name: Enterprise Routing and Switching, Professional (JNCIP-ENT)
Exam Code: JN0-643
Total Questions: 287 Q&As ( View Details)
Last Updated: Mar 25, 2024
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VCE
Juniper JN0-643 Last Month Results
JN0-643 Q&A's Detail
Exam Code: | JN0-643 |
Total Questions: | 287 |
Single & Multiple Choice | 287 |
CertBus Has the Latest JN0-643 Exam Dumps in Both PDF and VCE Format
JN0-643 Online Practice Questions and Answers
You are asked to implement VSTP on all devices in your Layer 2 network.
Which three statements are correct? (Choose three.)
A. VSTP supports up to 256 different spanning-tree topologies.
B. A BPDU is sent for each spanning-tree instance.
C. Each VLAN will be assigned to a unique spanning-tree instance.
D. MSTP can be used in addition to VSTP to account for VLANs outside of the supported range.
E. VSTP can be used to load-balance Layer 2 traffic using VLANs.
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. accept-remote-nexthop
D. allow
A Layer 2 forwarding loop occurred on your network during a scheduled maintenance period. You must prevent this behavior in the future.
Which protocol should you enable on the EX Series switch to address this condition in the future?
A. DVMRP
B. L2TPv3
C. STP
D. RSVP
-- Exhibit
-- Exhibit -
Click the Exhibit button.
In the exhibit, the provider bridges are using Q-in-Q tunneling to tunnel VLAN 100 traffic over VLAN 200. What is the correct VLAN configuration for Q-in-Q tunneling on Provider Bridge A?
A. interfaces { ge-0/0/0 { unit 0 { family ethernet-switching { port-mode access; } } } ge-0/0/10 { unit 0 { family ethernet-switching { port-mode trunk; vlan { members test; } } } } } vlans { test { vlan-id 200; interface { ge-0/0/0.0; } dot1q-tunneling { customer-vlans 100; } }
}
B. interfaces { ge-0/0/0 { unit 0 { family ethernet-switching {
port-mode trunk;
vlan {
members test;
}
}
}
}
ge-0/0/10 {
unit 0 {
family ethernet-switching {
port-mode access;
}
}
}
}
vlans {
test {
vlan-id 200;
interface {
ge-0/0/0.0;
}
dot1q-tunneling {
customer-vlans 100;
}
}
}
C. interfaces { ge-0/0/0 { unit 0 { family ethernet-switching { port-mode trunk; vlan { members test; } } } } ge-0/0/10 { unit 0 { family ethernet-switching { port-mode access; } } } } vlans { test { vlan-id 200; interface { ge-0/0/10.0; } dot1q-tunneling { customer-vlans 100; } } }
D. interfaces { ge-0/0/0 { unit 0 { family ethernet-switching { port-mode access; } } } ge-0/0/10 { unit 0 { family ethernet-switching { port-mode trunk; vlan { members test; } } } } } vlans { test { vlan-id 100; interface { ge-0/0/0.0; } dot1q-tunneling { customer-vlans 200; } } }
Which AS path regular expression will match the AS path to AS 50 as shown in the exhibit?
A. 20+30+40+50+
B. 20 30*$
C. 20 30 40 50
D. 20|30|40|50
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