JN0-643 Dumps

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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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JN0-643 Q&A's Detail

Exam Code: JN0-643
Total Questions: 287
Single & Multiple Choice 287

JN0-643 Online Practice Questions and Answers

Questions 1

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.

Show Answer
Questions 2

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

Show Answer
Questions 3

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

Show Answer
Questions 4

-- 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; } } }

Show Answer
Questions 5

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

Show Answer More Questions

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