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Juniper JN0-649 exam is a professional level certification that is designed to validate the skills and knowledge of networking professionals in enterprise routing and switching. JN0-649 exam covers a wide range of topics related to network architecture, protocols, and technologies used in enterprise networks. Enterprise Routing and Switching, Professional (JNCIP-ENT) certification is highly valued by employers and networking professionals and is recognized worldwide as an industry-standard certification. Candidates can prepare for the exam by taking training courses, reading study materials, and practicing with lab exercises.
NEW QUESTION # 23
The connection between DC1 and DC2 is routed as shown in the exhibit.
In this scenario, which statement is correct?
- A. L3VPN must be enabled to advertise reachability.
- B. The border devices must be able to perform Layer 3 routing and provide IRB functionality.
- C. Type 2 and Type 5 routes will be exchanged between DC1 and DC2.
- D. An IP prefix route provides encoding for intra-subnet forwarding.
Answer: B
Explanation:
https://www.juniper.net/documentation/us/en/software/junos/evpn-vxlan/topics/concept/evpn-route-type5-understanding.html
NEW QUESTION # 24
A BA classifier, input policer, and a multifield classifier are applied to an interface in which order are these features processed?
- A. policer > multifield classifier -> BA classifier
- B. policer -> BA classifier -> multifield classifier
- C. BA classifier -> multifield classifier -> policer
- D. multifield classifier -> BA classifier -> policer
Answer: B
NEW QUESTION # 25
Which address range is used for source-specific multicast?
- A. 224.2.0.0/16
- B. 232.0.0.0/8
- C. 239.0.0.0/8
- D. 233.0.0.0/8
Answer: B
Explanation:
PIM SSM introduces new terms for many of the concepts in PIM sparse mode. PIM SSM can technically be used in the entire 224/4 multicast address range, although PIM SSM operation is guaranteed only in the 232/8 range (232.0.0/24 is reserved). The new SSM terms are appropriate for Internet video applications and are summarized in Table 1. https://www.juniper.net/documentation/us/en/software/junos/multicast/topics/concept/multicast-pim-ssm.html
NEW QUESTION # 26
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. Disable the BPDU block function on the access switches.
- B. Disable the BPDU block function on the distribution switch.
- C. Configure the links between the access switches and the distribution switch as a trunk port.
- D. Configure a GRE tunnel to encapsulate the L2PT traffic across the WAN.
Answer: C
NEW QUESTION # 27
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?
- A. Router E receives Type 1 withdrawal messages from router D.
- B. Router E receives Type 2 withdrawal messages from router D.
- C. Router E receives Type 1 withdrawal messages from router C.
- D. Router E receives Type 2 withdrawal messages from router C.
Answer: A
NEW QUESTION # 28
Your campus EX9200 core devices are highly oversubscribed on bandwidth ans reporting massive dropped packets.
To immediately address the issue, you decide to implement shaping on all interfaces.
Which action will accomplish?
- A. Define a CoS input traffic control profile with the shape-rate 5G parameter and apply it to all interfaces.
- B. Apply the shape-rate 5G parameter to all interfaces under the [edit class-of service] hierarchy.
- C. Define a CoS output traffic control profile with the shape-rate 5G parameter and apply it to all interfaces.
- D. Apply the input-shape-rate 5G parameter to all interfaces under the [edit class-of service] hierarchy.
Answer: C
Explanation:
https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/cos-shaping-rate- on-physical-interfaces-configuring.html
NEW QUESTION # 29
Which statement is true regarding LLDP advertisements?
- A. LLDP communicates CoS values to VoIP devices
- B. LLDP communicates power requirements from PoE enabled devices
- C. LLDP communicates VLAN information to VoIP devices
- D. LLDP communicates device information to neighbors
Answer: D
NEW QUESTION # 30
Which two statements are correct about the deployment of EVPN-VXLAN on QFX Series devices? (Choose two.)
- A. Type 1 route advertisements always have the single-active flag set to 0.
- B. Junos OS supports ingress replication for BUM traffic forwarding.
- C. Junos OS supports underlay replication for BUM traffic forwarding.
- D. Type 1 route advertisements always have the single-active flag set to 1.
Answer: A,B
Explanation:
BUM Traffic Forwarding
Junos devices that use MPLS encapsulation for EVPNs can only use ingress replication at this time.
Ingress replication means, to flood traffic to remote PE routers, the traffic has to be replicated, once for each remote PE router.
The EVPN label for this BUM traffic is learned per PE router from the route type 3, inclusive multicast Ethernet tag route.
This table shows the format of the inclusive multicast Ethernet tag route.
All-Active Redundancy (4)
This diagram shows the format of the type 1 route, A-D route per ES. The split horizon label is advertised as part of an extended community attached to the type 1 route. The split horizon label is also called the ESI label. The extended community also indicates what type of redundancy mode is used for this given ESI: single-active represented by binary 1 or active-active represented by binary 0.
NEW QUESTION # 31
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?
- A. Adjust the scheduler for the expedited-forwarding forwarding class to support a higher transmit rate.
- B. Adjust the expedited-forwarding BA classifier to router B's ge-0/0/0 interface to support a higher transmit rate.
- C. Adjust the scheduler-map to support a higher transmit rate.
- D. Adjust the expedited-forwarding BA classifier on router B's ge-0/0/1 interface to support a higher transmit rate.
Answer: D
NEW QUESTION # 32
Which protocol allows a switch to pass configuration information to an IP phone?
- A. LLDP-MED
- B. BFD
- C. VCCP
- D. IPv6
Answer: A
NEW QUESTION # 33
Referring to the configuration shown in the exhibit, how many of the routes received from 10.0.0.2 will be active in the routing table?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION # 34
Referring to the exhibit, which statement is correct?
- A. This router is an ASBR.
- B. This router is connected to 27 different areas.
- C. This router is an ABR.
- D. This router originated the LSA.
Answer: D
NEW QUESTION # 35
You created a firewall rule to protect the Routing Engine. After applying the rule, your OSPF adjacencies dropped.
How would you solve this problem?
- A. Apply the firewall filter to the physical ports.
- B. Configure the loopback interface under the [edit protocols ospf] hierarchy.
- C. Define a router ID under the [edit routing-options] hierarchy.
- D. Create a firewall term that allows IP protocol 89.
Answer: D
NEW QUESTION # 36
You are asked to establish full connectivity between all devices in the BGP network.
Referring to the exhibit, which two configuration changes will allow BGP route advertisements? (Choose two.)
- A. On R1 and R3, include the loops 2 statement at the [edit protocols bgp family inet unicast] hierarchy.
- B. On R2, include the advertise-peer-as statement at the [edit protocols bgp group external] hierarchy.
- C. On R2, include the loops 2 statement at the [edit protocols bgp family inet unicast] hierarchy.
- D. On R1 and R3, include the advertise-peer-as statement at the [edit protocols bgp group external] hierarchy.
Answer: A,B
Explanation:
https://www.juniper.net/documentation/us/en/software/junos/bgp/topics/ref/statement/advertise-peer-as-edit-protocols-bgp.html
NEW QUESTION # 37
Your network has an unmanaged switch between the hosts and your EX Series switch. After the traffic enters the EX Series switch, each host must be on a separate VLAN.
How would you accomplish this task?
- A. Configure interface ge-0/0/3 to a mode trunk to assign the VLANs.
- B. Configure an output firewall filter on interface ge-0/0/1 to match the destination MAC or IP address of the hosts to assign the VLANs.
- C. Configure an input firewall filter on interface ge-0/0/3 to match the source MAC or IP address of the hosts to assign the VLANs.
- D. Configure VSTP on interface ge-0/0/1 to assign the VLANs.
Answer: A
NEW QUESTION # 38
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
shortest AS path
lowest router ID
lowest peer address
lower origin code - D. higher local preference
lowest router ID
lowest peer address
lower origin code
shortest AS path
Answer: C
NEW QUESTION # 39
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 a load-balance per-packet policy and apply it at the [edit routing-options forwarding- table] hierarchy.
- C. Configure the multipath option at the [edit routing-instances <instance-name> routing-options] hierarchy.
- D. Configure the multipath option at the [edit protocols bgp group <group-name> neighbor] hierarchy.
Answer: A,C
NEW QUESTION # 40
You are asked to troubleshoot voice quality issues on your newly implement VoIP network. You notice that the voice packets are being dropped. You have verified that the packets are correctly marked for expedited forwarding queue.
Referring to the exhibit, what must you configure to solve the problem?
You are asked to troubleshoot voice quality issues on your newly implement VoIP network. You notice that the voice packets are being dropped. You have verified that the packets are correctly marked for expedited forwarding queue.
Referring to the exhibit, what must you configure to solve the problem?
- A. You must configure a multifield classifier to put the VoIP traffic in the correct queue.
- B. You must configure a scheduler to allocate bandwidth to the expedited forwarding queue.
- C. You must configure a rewrite rule to ensure that the traffic is scheduled properly in the device.
- D. You must configure a policer to ensure that the queue is not being starved.
Answer: B
NEW QUESTION # 41
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?
- A. replace the link between Switch 5 and 6 with a 10 Gbps link
- B. Implement the CIST on all switches.
- C. Move the root bridge for MSTI-2 to Switch 6.
- D. Add MSTI-2 to all interfaces on Switch 5.
Answer: D
NEW QUESTION # 42
You are investigating reports of increased latency and discover that some routes cause customer traffic to traverse a route reflector instead of the optimal path.
Referring to the exhibit, which configuration statement would solve the problem?
- A. delete protocol bop group BGP-MESH export NH3
- B. set protocols bgp group BGP-HESH import NHS
- C. set policy-option, policy-statement NHS term BGP_ROUTES from external
- D. delete protocols bgp group BGP-MESH peer-as
Answer: C
NEW QUESTION # 43
Your organization has recently acquired another company. You must carry all of the company's existing VLANs across the corporate backbone to the existing branch locations without changing addressing and with minimal configuration.
Which technology will accomplish this task?
- A. EVPN-VXLAN anycast gateway
- B. PVLAN isolated VLAN
- C. MVRP registration normal
- D. Q-in-Q all-in-one bundling
Answer: D
NEW QUESTION # 44
Click the Exhibit button.
During an outage, you review the status of the Q-in-Q implementation on VLAN 300.
Referring to the exhibit, what would be the cause of the outage?
- A. The VLAN range overlaps.
- B. The C-VLANs are disabled.
- C. The S-VLAN is disabled.
- D. There are no active ports.
Answer: D
NEW QUESTION # 45
Referring to the exhibit, on which three IS-IS routers will the attached bit be set? (Choose three.)
- A. UR3
- B. UR5
- C. R2
- D. R6
- E. R4
Answer: A,C,D
NEW QUESTION # 46
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Juniper JN0-649 exam is a professional level certification test offered by Juniper Networks. It is designed for IT professionals who are interested in improving their skills in enterprise routing and switching. The JN0-649 exam is one of the core certifications required for the Juniper Networks Certified Professional Enterprise Routing and Switching (JNCIP-ENT) certification.
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