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.

QA4Exam focus on the latest syllabus and exam objectives, our practice Q&A are designed to help you identify key topics and solidify your understanding. By focusing on the core curriculum, These Questions & Answers helps you cover all the essential topics, ensuring you're well-prepared for every section of the exam. Each question comes with a detailed explanation, offering valuable insights and helping you to learn from your mistakes. Whether you're looking to assess your progress or dive deeper into complex topics, our updated Q&A will provide the support you need to confidently approach the Juniper JN0-649 exam and achieve success.

The questions for JN0-649 were last updated on Feb 18, 2025.

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Question No. 1

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

ABPDUs from the root bridge for VLAN 10 have been received on the ge-0/0/7.0 interface.

BDS-1 is the root bridge for VLAN 10.

CBPDUs from the root bridge for VLAN 20 have been received on the ge-0/0/7.0 interface.

DDefault VSTP bridge priority values are configured.

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Correct Answer: A, C

Question No. 2

Referring to the exhibit, traffic ingresses on interface ge-0/0/3 and egresses on interface ge-0/0/4.

Which queue does traffic with the IP precedence value of 100 use?

Anetwork-control

Bassured-forwarding

Cbest-effort

Dexpedited-forwarding

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Correct Answer: D

Question No. 3

The connection between DC1 and DC2 is routed as shown in the exhibit.

In this scenario, which statement is correct?

AThe border devices must be able to perform Layer 3 routing and provide IRB functionality.

BL3VPN must be enabled to advertise reachability.

CAn IP prefix route provides encoding for intra-subnet forwarding.

DType 2 and Type 5 routes will be exchanged between DC1 and DC2.

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Correct Answer: A

https://www.juniper.net/documentation/us/en/software/junos/evpn-vxlan/topics/concept/evpn-route-type5-understanding.html

Question No. 4

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.

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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. 5

You are asked to enforce user authentication using a captive portal before users access the corporate network.

Which statement is correct in this scenario?

AHTTPS is the default protocol for a captive portal.

BA captive portal can be bypassed using an allowlist command containing a device's IP address.

CWhen enabled, a captive portal must be applied to each individual interface.

DAll Web browser requests are redirected to the captive portal until authentication is successful.

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Correct Answer: D

You can set up captive portal authentication on your switch to redirect all Web browser requests to a login page that requires users to input a username and password before they are allowed access. Upon successful authentication, users are allowed access to the network and redirected to the original page requested. Junos OS provides a customizable template for the captive portal window that allows you to easily design and modify the look of the captive portal login page. You can modify the design elements of the template to change the look of your captive portal login page and to add instructions or information to the page. You can also modify any of the design elements of a captive portal login page. The first screen displayed before the captive login page requires the user to read the terms and conditions of use. By clicking the Agree button, the user can access the captive portal login page. https://www.juniper.net/documentation/us/en/software/junos/user-access/topics/topic-map/user-authentication-captive-portal.html

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