Pass JN0-649 Exam – Real Test Engine PDF with 65 Questions [Q27-Q46]

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Pass JN0-649 Exam – Real Test Engine PDF with 65 Questions

Get New JN0-649 Certification Practice Test Questions Exam Dumps

Juniper JN0-649 (JNCIP-ENT) Certification Exam is a comprehensive certification that assesses the candidate’s advanced knowledge and skills in routing and switching technologies. Enterprise Routing and Switching, Professional (JNCIP-ENT) certification is suitable for network engineers, administrators, and support personnel in an enterprise environment. Juniper Networks offers several resources to help the candidate prepare for the exam, including study guides and practice exams. The JNCP certification is an industry-recognized certification that can enhance the candidate’s career prospects and earning potential.

Earning the JNCIP-ENT certification demonstrates a candidate’s expertise in enterprise routing and switching, making them a valuable asset to any organization. Enterprise Routing and Switching, Professional (JNCIP-ENT) certification is recognized globally and validates the candidate’s skills in designing, implementing, and troubleshooting Juniper Networks’ enterprise routing and switching platforms.

Q27. Which two statements are true regarding bidirectional PIM? (Choose two )

It eliminates the need for an RP.

Devices only store group specific entries.

It uses multicast tunneling to forward traffic

Forwarding paths can be suboptimal

Q28. Which statement is correct about MSTP?

MSTP enables mapping multiple independent spanning tree instances onto one physical topology

MSTP enables dynamic discovery of Layer 2 neighbors.

MSTP dynamically manages VLAN registration in a LAN

MSTP uses slacked VLAN tags to extend a Layer 2 Ethernet connection between multiple sites

Q29. Click the Exhibit button.

You have configured and applied the policer shown in the exhibit to your Junos device.
Which statement is true in this scenario?

Traffic exceeding the committed-burst size will be marked with a loss priority of high.

Traffic exceeding the excess-burst size will be discarded.

Traffic exceeding the committed-information-rate will be rate limited.

Traffic exceeding the committed-burst size will be discarded.

Red–Traffic that exceeds the burst size for peak traffic (EBS), single-rate marks packets with an implicit loss priority of high and, optionally, discards the packets.
https://www.juniper.net/documentation/en_US/junos/topics/topic-map/policer-single-rate-three- color.html
https://www.juniper.net/documentation/us/en/software/junos/routing-policy/topics/topic- map/policer-single-rate-three-color.html

Q30. You have configured CoS on a Junos device. A packet is classified as best effort by a behavior aggregate (BA) classifier, and as expedited forwarding by a multifield (MF) classifier.
Which statement is true in this scenario?

The packet will be placed in a queue associated with the BA classifier.

The packet will be placed into the queue which is least congested.

The packet will be placed into the queue that has the most bandwidth assigned to it.

The packet will be placed in a queue associated with the MF classifier.

https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/cos-configuring- multifield-classifiers.html
>> “If you configure both a behavior aggregate (BA) classifier and a multifield classifier, BA classification is performed first; then multifield classification is performed. If they conflict, any BA classification result is overridden by the multifield classifier.”

Q31. Your Net is learning the 210.210.40.0/24 route from Provider A and Provider B YourNet would like to forward traffic destined to the 210.210.40.0/24 networking using Provider B.
Referring to the exhibit, how would you accomplish this task?

Add the well-known no-export community to the routes learned through R2.

Apply an export policy to R1’s IBGP peers to set a higher local preference.

Add the well-known no-export community to the routes learned through R1.

Apply an export policy to R2’s IBGP peers to set a Their local preference.

Q32. 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.)

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

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

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

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

Type 2 route, MAC with IP advertisement route-Type 2 routes are per-VLAN routes, so only PEs that are part of a VNI need these routes. EVPN allows an end host’s IP and MAC addresses to be advertised within the EVPN Network Layer reachability information (NLRI). This allows for control plane learning of ESI MAC addresses. Because there are many Type 2 routes, a separate route-target auto-derived per VNI helps to confine their propagation. This route type is supported by all EVPN switches and routers. Type 5 route, IP prefix Route-An IP prefix route provides encoding for inter-subnet forwarding. In the control plane, EVPN Type 5 routes are used to advertise IP prefixes for inter-subnet connectivity across data centers. To reach a tenant using connectivity provided by the EVPN Type 5 IP prefix route, data packets are sent as Layer 2 Ethernet frames encapsulated in the VXLAN header over the IP network across the data centers.

Q33. You must provide network connectivity to hosts that fail authentication. In this scenario, what would be used in a network secured with 802.1X to satisfy this requirement?

Configure the native-vlan-id parameter on the port.

Use the server-reject-vlan command to specify a guest VLAN.

Configure a secondary IP address on the port for unauthenticated hosts.

Configure the port as a spanning tree edge port.

Q34. Referring to the exhibit, which statement is correct?

This router is an ASBR.

This router is an ABR.

This router is connected to 27 different areas.

This router originated the LSA.

Q35. You receive the same 100.200.0/16 route from all four ISPs to which you are connected.
Referring to the exhibit, which ISP’s route will be selected as active?

ISP-A

ISP-B

ISP-C

ISP-D

Q36. In a Layer 2 environment where 802.1X is deployed, which two statements are correct? (Choose two.)

RADIUS messages are exchanged between the supplicant and the authenticator.

RADIUS messages are exchanged between the authenticator and the authentication server.

Extensible Authentication Protocol messages are exchanged between the authenticator and the authentication server.

Extensible Authentication Protocol messages are exchanged between the supplicant and the authenticator.

https://en.wikipedia.org/wiki/IEEE_802.1X

Q37. You are designing a multicast topology to support IPv4 IPTV broadcasts in your organization. The design should support multiple multicast senders with overlapping group addresses while preventing interference between them. Client devices currently do not support IGMPv3.
Which approach would fulfill these requirements?

Implement PIM-SM and SSM with SSM maps to support IGMPv2 clients

Implement bidirectional PIM

Assign group addresses in the 224/4 range and implement PIM-DM

Implement MLD

Q38. Which two statements about OSPF routing policies are correct? (Choose two.)

By default, OSPF export policies reject network-summary LSAs.

By default, OSPF export policies accept network-summary LSAs.

By default, OSPF import policies accept network-summary LSAs.

By default, OSPF import policies reject network-summary LSAs.

Q39. You are enabling MSTP in your Layer 2 network to prevent loops. In this scenario, which three parameters must match on all switches in the network? (Choose three. )

configuration name

bridge priority

MSTI-to-VLAN mapping

max age

revision level

Q40. Which three MSTP parameters must match on all switches in the same MST region? (Choose three.)

forwarding delay

bridge priority

revision number

MSTI-to-VLAN mapping

configuration name

Q41. Referring to the outputs shown in the exhibit, which two statements are correct about the IS-IS adjacency? (Choose two.)

R1 is configured to participate in both Level 1 and Level 2.

R2 is configured to participate in both Level 1 and Level 2.

R1 is configured to participate in Level 2 only.

R2 is configured to participate in Level 2 only.

Q42. You must ensure that all routes in the 10.0.0/8 address range are not advertised outside of your AS. Which well-known BGP community should be assigned to these addresses to accomplish this task?

no-export

no-peer

internet

no-advertise

Q43. Your enterprise network uses routing instances to support multitenancy. Your Junos devices use BGP to peer to multiple BGP devices. You must ensure that load balancing is achieved within the routing instance.
Which two statements would accomplish this task? (Choose two.)

Configure the multipath option at the [edit protocols bgp group <group-name> neighbor] hierarchy.

Configure the multipath option at the [edit protocols bgp group] hierarchy.

Configure a load-balance per-packet policy and apply it at the [edit routing-options forwarding- table] hierarchy.

Configure the multipath option at the [edit routing-instances <instance-name> routing-options] hierarchy.

Q44. Which protocol is used for port-level access control and authentication?

MD5

IPsec

802.1x

AES

Q45. A customer on MSTI-2 was isolated due to a physical link outage on Switch 5’s ge-0/0/32 interface.

Referring to the exhibit, which corrective action would solve this problem?

replace the link between Switch 5 and 6 with a 10 Gbps link

Implement the CIST on all switches.

Move the root bridge for MSTI-2 to Switch 6.

Add MSTI-2 to all interfaces on Switch 5.

Q46. 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?