[2025] New JN0-649 exam dumps Use Updated Juniper Exam
Verified JN0-649 Dumps Q&As - JN0-649 Test Engine with Correct Answers
The JN0-649 exam covers a wide range of topics, including advanced routing concepts, switching technologies, security features, and network automation. Candidates are required to have a strong understanding of Juniper Networks’ operating system, Junos, and must be able to configure and manage complex network environments. Successful candidates will demonstrate their ability to troubleshoot complex problems and provide effective solutions in a timely manner. Enterprise Routing and Switching, Professional (JNCIP-ENT) certification is ideal for network engineers, technicians, and administrators who work with Juniper Networks products and want to enhance their skills and expertise in enterprise-level networking technologies.
NEW QUESTION # 83
You will to route Layer 3 PVLAN traffic within the secondary VLAN.
What is required to accomplish this task?
- A. an isolated VLAN
- B. an FBF policy
- C. a community VIAN
- D. an IRB
Answer: D
NEW QUESTION # 84
When configuring 802.1X authentication, what are three server fail fallback settings? (Choose three.)
- A. permit
- B. move
- C. sustain
- D. log
- E. count
Answer: A,B,C
Explanation:
https://www.juniper.net/documentation/en_US/junos/topics/topic-map/radius-server-configuration- ex-series-cli.html#id-configuring-radius-server-fail-fallback-cli-procedure
https://www.juniper.net/documentation/en_US/junos/topics/topic-map/radius-server-configuration- ex-series-cli.html Permit authentication, allowing traffic to flow from the end device through the interface as if the end device were successfully authenticated by the RADIUS server.
Deny authentication, preventing traffic from flowing from the end device through the interface.
This is the default.
Move the end device to a specified VLAN if the switch receives a RADIUS access-reject message. The configured VLAN name overrides any attributes sent by the server. (The VLAN must already exist on the switch.) Sustain authenticated end devices that already have LAN access and deny unauthenticated end devices. If the RADIUS servers time out during reauthentication, previously authenticated end devices are reauthenticated and new users are denied LAN access.
NEW QUESTION # 85
BGP multipath or multihop are not configured in your network.
In this scenario, what is the correct sequence for BGP active route selection?
- A. higher local preference
shortest AS path
lower origin code
lowest router ID
lowest peer address - B. higher local preference
shortest AS path
lowest peer address
lowest router ID
lower origin code - C. higher local preference
lowest router ID
lowest peer address
lower origin code
shortest AS path - D. higher local preference
shortest AS path
lowest router ID
lowest peer address
lower origin code
Answer: A
Explanation:
The correct sequence for BGP active route selection when BGP multipath or multihop are not configured is as follows:
* Higher local preference: Routes with a higher local preference are preferred.
* Shortest AS path: Routes with the shortest AS path are preferred.
* Lower origin code: Routes with lower origin code (IGP < EGP < Incomplete) are preferred.
* Lowest router ID: Routes with the lowest router ID are preferred.
* Lowest peer address: Routes with the lowest peer address are preferred.
References:
* Standard BGP route selection criteria as outlined in network routing protocols.
* Documentation from "Useful Juniper Commands.txt" and "Juniper Commands.pdf" which include detailed BGP operational commands and preferences.
NEW QUESTION # 86
In OSPF, how does a router ensure that LSAs advertised to a neighboring router are received?
- A. LSAs are sent over a TCP connection.
- B. LSAs are advertised with an acknowledgement bit.
- C. LSAs are acknowledged by the neighboring router.
- D. LSA flooding guarantees that all routers will receive them successfully.
Answer: C
Explanation:
* OSPF Protocol Basics:
* OSPF (Open Shortest Path First) is a link-state routing protocol.
* Routers exchange LSAs (Link-State Advertisements) to share topology information.
* LSA Acknowledgment Mechanism:
* OSPF uses a reliable mechanism to ensure LSAs are received.
* When a router sends an LSA to a neighbor, it expects an acknowledgment (ACK).
* If an ACK is not received within a certain period, the router will retransmit the LSA.
* Acknowledgment Process:
* LSAs are sent over OSPF's reliable transport, which ensures delivery through acknowledgments.
* This mechanism helps to maintain consistent and up-to-date topology databases across routers.
References:
* OSPF RFC 2328
* Understanding OSPF Operations
NEW QUESTION # 87
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. Issue the show route table bgp.evpn.0 command on Leaf2 and verify that Type 4 routes are present.
- B. Issue the show route table bgp.evpn.0 command on Leaf2 and verify that Type 3 routes are present.
- C. Verify that the same ESI is configured on the two links from the source.
- D. Verify that the same ESI is configured on the link from the host and that it matches the source.
Answer: A,B
Explanation:
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.
NEW QUESTION # 88
Which protocol is used for port-level access control and authentication?
- A. IPsec
- B. 802.1x
- C. MD5
- D. AES
Answer: B
NEW QUESTION # 89
Which two statements are correct about the deployment of EVPN-VXLAN on QFX Series devices? (Choose two.)
- A. Junos OS supports underlay replication for BUM traffic forwarding.
- B. Type 1 route advertisements always have the single-active flag set to 1.
- C. Type 1 route advertisements always have the single-active flag set to 0.
- D. Junos OS supports ingress replication for BUM traffic forwarding.
Answer: C,D
Explanation:
BUM traffic handling is given to the overlay network by configuring VXLAN ingress-node- replication instead of multicast overlay In an EVPN-VXLAN environment, EVPN multihoming active-active mode is used instead of MC- LAG for redundant connectivity between hosts and leaf devices.
In active-active mode, each of the multihomed PE device advertises a mandatory autodiscovery route per Ethernet segment as in the active-standby state. However, in the active-active state, the autodiscovery route per Ethernet segment is modified such that the active-standby bit carried in the MPLS extended community is cleared to indicate that the active-active mode is in operation.
NEW QUESTION # 90
You want to create an OSPF area that only contains intra-area route information in the form of Type 1 and Type 2 LSAs.
In this scenario, which area is needed to accomplish this task?
- A. stub area
- B. non-to-stubby area
- C. totally non-to-stubby area
- D. totally stubby area
Answer: D
Explanation:
* Step 1: Identify the requirement.
* You need an OSPF area that only contains intra-area route information in the form of Type 1 and Type 2 LSAs.
* Step 2: Analyze the possible OSPF area types.
* Option A: Totally non-to-stubby area.
* Option B: Totally stubby area.
* Option C: Stub area.
* Option D: Non-to-stubby area.
* Step 3: Understand OSPF area types.
* Totally Stubby Area (Option B): Only allows Type 1 and Type 2 LSAs and blocks Type 3, 4, and 5 LSAs. It uses a default route to represent external routes.
* This fits the requirement of containing only intra-area routes.
References:
* Juniper OSPF configuration guide on area types.
* Commands for configuring a totally stubby area:
shell
Copy code
set protocols ospf area <area-id> stub no-summaries
NEW QUESTION # 91
Your IS-IS adjacency is not established as shown in the exhibit. What is the problem?
- A. There is an invalid IPv6 router ID
- B. There is an invalid IPv4 router ID
- C. There is an area mismatch
- D. There is an MTU mismatch
Answer: C
NEW QUESTION # 92
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.)
- A. Configure the multipath option at the [edit protocols bgp group] hierarchy.
- B. Configure the multipath option at the [edit protocols bgp group <group-name> neighbor] hierarchy.
- C. Configure a load-balance per-packet policy and apply it at the [edit routing-options forwarding- table] hierarchy.
- D. Configure the multipath option at the [edit routing-instances <instance-name> routing-options] hierarchy.
Answer: C,D
Explanation:
To enable these features on a Layer 3 VPN routing instance, include the vpn-unequal-cost equal- external-internal statement at the [edit routing-instances routing-instance-name routing-options multipath] hierarchy level and the vrf-table-label statement at the [edit routing-instances routing- instance-name] hierarchy level.
https://www.juniper.net/documentation/us/en/software/junos/vpn-l3/topics/ref/statement/multipath- edit-routing-options.html
NEW QUESTION # 93
You are deploying IP phones in your enterprise networks. When plugged in, the IP phones must be automatically provided with the correct VLAN ID needed for sending voice traffic to the EX Series switches.
In this scenario, which two solutions are required to accomplish this task? (Choose two.)
- A. Create two VLANs and assign them as VLAN members to the appropriate access interfaces.
- B. Enable LLDP-MED on appropriate access interfaces.
- C. Enable the voice VLAN feature with the appropriate access interfaces and VLAN ID for voice traffic.
- D. Use LLDP on appropriate interfaces.
Answer: B,C
Explanation:
* Enabling LLDP-MED:
* LLDP-MED (Link Layer Discovery Protocol - Media Endpoint Discovery) is an extension of LLDP specifically for VoIP devices.
* It allows network devices to advertise and receive configuration information, such as VLAN IDs, from the network switch.
* Voice VLAN Feature:
* The voice VLAN feature on switches is designed to simplify the deployment of VoIP by automatically placing voice traffic on a designated VLAN.
* Configuring the appropriate access interfaces and VLAN ID for voice traffic ensures that voice
* packets are prioritized and properly segmented from other types of traffic.
* Configuration Steps:
* Enable LLDP-MED on the appropriate access interfaces:
plaintext
Copy code
set protocols lldp-med interface ge-0/0/0
* Enable the voice VLAN feature and specify the VLAN ID:
plaintext
Copy code
set ethernet-switching-options voip interface ge-0/0/0 vlan voice
set ethernet-switching-options voip interface ge-0/0/0 forwarding-class assured-forwarding References:
* Juniper documentation on LLDP-MED
* Juniper EX Series switch configuration guide for voice VLAN
NEW QUESTION # 94
Click the Exhibit.
The ping command shows that connectivity of the 200.0.1/24 network to the 200.0.200.0/24 network exists. You notice that all the ping test results from various devices on 200.0.1.0/24 follow the same path even through equal cost paths exist to the 200.0.200.0/24 network.
Referring to the exhibit, what is happening?
- A. Load balancing needs to be enabled for equal cost pathing to work.
- B. The rip-exp policy needs to be modified to advertise RIP routes
- C. The RIP group must include the preference statement.
- D. RIPv2 does not support load balancing static routes.
Answer: A
NEW QUESTION # 95
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?
- A. no-export
- B. no-advertise
- C. no-peer
- D. internet
Answer: A
NEW QUESTION # 96
Referring to the exhibit, anycast RP is implemented to ensure multicast service availability. The source is currently sending multicast traffic using group 239.1.1.1 and R3 is receiving PIM register messages, but R2 does not have active source information.
In this scenario, what are two methods to receive the active source information on R2? (Choose two.)
- A. Configure an MSDP protocol between R2 and R3.
- B. Configure an RP set in PIM on R2 and R3, allowing the RPs to forward PIM register messages to the other RPs in the set.
- C. Configure an RP set in PIM on R1, allowing R1 to forward PIM register messages to R2 and R3 in the set.
- D. Configure an MSDP protocol between R1 and R2.
Answer: A,B
Explanation:
* Anycast RP uses Multicast Source Discovery Protocol (MSDP) to discover and maintain a consistent view of the active sources. nclude the anycast-pim statement to configure anycast RP without MSDP (for example, if IPv6 is used for multicasting). The other RP routers that share the same IP address are configured using the rp-set statement.
https://www.juniper.net/documentation/us/en/software/junos/multicast/topics/topic-map/mcast-pim-anycas
NEW QUESTION # 97
In IS-IS advertising POUs with the overload bit has which effect?
- A. The local device will no longer be used for transit traffic
- B. The IS-IS adjacencies enter the "new" state
- C. The ISIS adjacencies become passive
- D. The local device's POUs are marked with a metric of 65535
Answer: A
NEW QUESTION # 98
You want to implement an RP in your PIM sparse mode environment, you are considering the advantages and disadvantages of the various RP election methods.
In this scenario, which three implementation guidelines are correct? (Choose three.)
- A. With the bootstrap method, the primary criterion for electing a BSR is priority value.
- B. When multiple election methods are implemented on a device, the static method is preferred.
- C. The static method requires configuration on all devices in the PIM domain.
- D. The auto-RP method requires using two PIM dense mode groups from the 323/8 range.
- E. The auto-RP method includes the ability to maintain a backup RP.
Answer: A,D,E
NEW QUESTION # 99
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?
- A. no-export
- B. no-advertise
- C. no-peer
- D. internet
Answer: A
Explanation:
For specifying the BGP community attribute only, you also can specify community-ids as one of the following well-known community names defined in RFC 1997:
no-advertise - Routes containing this community name are not advertised to other BGP peers.
no-export - Routes containing this community name are not advertised outside a BGP confederation boundary.
no-export-subconfed - Routes containing this community are advertised to IBGP peers with the same AS number, but not to members of other confederations.
llgr-stale - Adds a community to a long-lived stale route when it is readvertised.
no-llgr - Marks routes which a BGP speaker does not want to be retained by LLGR. The Notification message feature does not have any associated configuration parameters.
https://www.juniper.net/documentation/us/en/software/junos/bgp/topics/ref/statement/community- edit-routing-options.html
NEW QUESTION # 100
You are using 802.1X authentication in your network to secure all ports. You have a printer that does not support 802.1X and you must ensure that traffic is allowed to and from this printer without authentication.
In this scenario, what will satisfy the requirement?
- A. MAC filtering
- B. static MAC bypass
- C. MAC RADIUS
- D. MACsec
Answer: B
NEW QUESTION # 101
......
Pass Your JN0-649 Dumps as PDF Updated on 2025 With 195 Questions: https://www.suretorrent.com/JN0-649-exam-guide-torrent.html
Juniper JN0-649 Real Exam Questions and Answers FREE: https://drive.google.com/open?id=1eFmsq8V_ukjBrC46lo7FvhhlGM_9VD9O