Most Recent Juniper JN0-649 Exam Dumps

Prepare for the Juniper Enterprise Routing and Switching, Professional exam with our extensive collection of questions and answers. These practice Q&A are updated according to the latest syllabus, providing you with the tools needed to review and test your knowledge.

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The questions for JN0-649 were last updated on Mar 28, 2025.

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Question No. 1

Remote branches connect to the corporate WAN through access switches. The access switches connect to access ports on the WAN distribution switch, as shown in the exhibit. L2PT has previously been configured on the tunnel Layer 2 traffic across the WAN. You decide to move the L2PT tunnel endpoints to the access switches. When you apply the L2PT configuration to the access switches, the ports that connect the access switches to the distribution switch shut down.

Which action would solve this problem?

AConfigure the links between the access switches and the distribution switch as a trunk port.

BDisable the BPDU block function on the access switches.

CDisable the BPDU block function on the distribution switch.

DConfigure a GRE tunnel to encapsulate the L2PT traffic across the WAN.

Show Answer

Correct Answer: A

Access interfaces in an L2PT-enabled VLAN should not receive L2PT-tunneled PDUs. If an access interface does receive L2PT-tunneled PDUs, there might be a loop in the network, and the device will shut down the interface. https://www.juniper.net/documentation/us/en/software/junos/multicast-l2/topics/topic-map/layer-2-protocol-tunneling.html

Question No. 2

You are deploying IP phones in your enterprise networks. When plugged in, the IP phones must automatically negotiate the power requirements for the new connection with the EX Series switches.

In this scenario, which protocol should be used to enable this behavior?

ACDP

BMP-BGP

CLLDP-MED

DLLDP

Show Answer

Correct Answer: C

Question No. 3

You are troubleshooting a BGP connection.

Referring to the exhibit, which two statements are correct? (Choose two.)

APacket fragmentation is preventing the session from establishing.

BThe 192.168.1.5 peer has a misconfigured MD5 key.

CThe ge-0/0/1 interface is disabled.

DThe 192.168.1.4 peer has a misconfigured autonomous system number.

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Correct Answer: B, D

Question No. 4

A user is attempting to watch a high-definition video being streamed from the media server over the network. However, the user complains that the experienced video quality is poor. While logged on to router B, a Juniper Networks device, you notice that video packets are being dropped.

In this scenario, what would solve this problem?

AAdjust the scheduler for the expedited-forwarding forwarding class to support a higher transmit rate.

BAdjust the expedited-forwarding BA classifier to router B's ge-0/0/0 interface to support a higher transmit rate.

CAdjust the scheduler-map to support a higher transmit rate.

DAdjust the expedited-forwarding BA classifier on router B's ge-0/0/1 interface to support a higher transmit rate.

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Correct Answer: A

transmit rate is set on the scheduler, BA and classifier do not have transmit rate. scheduler-map=maps schedulers to fwd classes

Question No. 5

Referring to the exhibit, how will router E quickly learn that the remote MAC addresses are no longer reachable through the router attached to the failed link?

ARouter E receives Type 2 withdrawal messages from router D.

BRouter E receives Type 1 withdrawal messages from router D.

CRouter E receives Type 1 withdrawal messages from router C.

DRouter E receives Type 2 withdrawal messages from router C.

Show Answer

Correct Answer: B

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