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Latest JN0-649 Exam Practice Questions

The practice questions for JN0-649 exam was last updated on 2025-06-01 .

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Question#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?

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

B. Disable the BPDU block function on the access switches.

C. Disable the BPDU block function on the distribution switch.

D. Configure a GRE tunnel to encapsulate the L2PT traffic across the WA

Question#2

You are troubleshooting an EVPN-VXLAN IP fabric and observe the loop shown in the exhibit.

Which two steps would you take to further troubleshoot this problem? (Choose two.)

A. Verify that the same ESI is configured on the link from the host and that it matches the source.

B. Issue the show route table bgp.evpn.0 command on Leaf2 and verify that Type 4 routes are present.

C. Issue the show route table bgp.evpn.0 command on Leaf2 and verify that Type 3 routes are present.

D. Verify that the same ESI is configured on the two links from the source.

Question#3

You are asked to establish interface level authentication for users connecting to your network. You must ensure that only corporate devices, identified by MAC addresses, are allowed to connect and authenticate. Authentication must be handled by a centralized server to increase scalability.
Which authentication method would satisfy this requirement?

A. MAC RADIUS

B. captive portal

C. 802.1X with single-secure supplicant mode

D. 802.1X with multiple supplicant mode

Question#4

You want to provide Layer 2 connectivity between campus sites using Ethernet switches through a metro Ethernet service provider who is using Q-in-Q tagging on their network.

Referring to the exhibit, what are two design considerations in this environment? (Choose two.)

A. VXLAN could be implemented on your network across this service provider network.

B. Each campus switch shown must have a C-Tag 300 configured.

C. L2PT is required on the SP network to support the spanning tree protocol.

D. Each campus switch shown must have S-Tag 300 configured.

Question#5

Which two multicast listener registration protocols are supported in the Junos operating system? (Choose two.)

A. MLD

B. DVMRP

C. IGMP

D. PIM

Exam Code: JN0-649Q & A: 65 Q&AsUpdated: 2025-06-01

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