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JN0-649 Dumps Full Questions - Exam Study Guide
The Juniper JN0-649 exam, also known as the Enterprise Routing and Switching, Professional (JNCIP-ENT), covers a wide range of topics that include routing technologies, switched Ethernet, virtual LANs (VLANs), virtual private networks (VPNs), multicast, and advanced troubleshooting, among others. JN0-649 exam has a total of 65 questions, and the candidate will have 120 minutes to complete it.
Juniper JN0-649 exam is an excellent opportunity for IT professionals looking to advance their career in enterprise routing and switching. Passing JN0-649 exam and earning the JNCIP-ENT certification validates a candidate's skills and expertise in Juniper Networks' enterprise routing and switching platforms, making them a valuable asset to any organization. With the exam available in multiple languages and testing centers worldwide, candidates can take the exam at their convenience and demonstrate their knowledge globally.
Juniper JN0-649: Enterprise Routing and Switching, Professional (JNCIP-ENT) exam is a certification exam that tests the skills and knowledge of networking professionals in Juniper Networks Enterprise Routing and Switching environments. It evaluates the candidate's ability to configure, troubleshoot, and manage Junos devices. Passing JN0-649 exam will earn the candidate the Juniper Networks Certified Internet Professional Enterprise Routing and Switching (JNCIP-ENT) certification, which is a valuable asset for IT professionals in the networking industry.
NEW QUESTION # 40
You are asked to configure 802.1X on your access ports to allow only a single device to authenticate.
In this scenario, which configuration would you use?
- A. single supplicant mode
- B. multiple supplicant mode
- C. single-secure supplicant mode
- D. MAC authentication mode
Answer: C
Explanation:
Single supplicant mode authenticates only the first end device that connects to an authenticator port. All other end devices connecting to the authenticator port after the first has connected successfully, whether they are 802.1X-enabled or not, are permitted access to the port without further authentication. If the first authenticated end device logs out, all other end devices are locked out until an end device authenticates. Single-secure supplicant mode authenticates only one end device to connect to an authenticator port. No other end device can connect to the authenticator port until the first logs out.
NEW QUESTION # 41
Referring to the exhibit, which two statements are correct? (Choose two.)
- A. If the total power consumption exceeds 90 watts, the ge-0/0/11 interface will continue to receive power.
- B. The maximum wattage that this switch can allocate to attached Ethernet devices is 100 watts.
- C. The ge-0/0/10 interface supports PoE+.
- D. PoE is not enabled on the ge-0/0/0 interface.
Answer: B,D
NEW QUESTION # 42
Referring to the exhibit, you have placed the cos multifield classifier on all edge interfaces and configured the relevant CoS parameters.
In this scenario, which two statements are correct? (Choose two.)
- A. UDP traffic using the 16000 port will be placed in the voice forwarding class and accepted.
- B. SSH traffic using the default port will be placed in the af forwarding class and accepted.
- C. SSH traffic using the default port will be placed in the best-effort forwarding class and accepted.
- D. UDP traffic using the 16000 port will be placed in the best-effort forwarding class and accepted.
Answer: A,B
NEW QUESTION # 43
When configuring class of services, what would be you use to allocate bandwidth to a forwarding class?
- A. transmit rate
- B. buffer depth
- C. speed
- D. bandwidth
Answer: A
NEW QUESTION # 44
Referring to the exhibit, which LSA type is used to advertise 192.168.1.0/24 to R5?
- A. Type 7
- B. Type 4
- C. Type 3
- D. Type 5
Answer: D
Explanation:
Area-1 has no external connections. However, Area-1 has static route (172.16.31.0/24) that are not internal OSPF route. You can limit the external route advertisements to the area and advertise the static routes by designating the area an NSSA. In an NSSA, the ASBR (vMX1) generates NSSA external (Type 7) LSAs and floods them into the NSSA, where they are contained.
Type-7 LSAs allow an NSSA to support the presence of ASBR and their corresponding external routing information. The ABR (vMX2) converts Type-7 LSAs into Type-5 External LSAs and leaks them to the other areas, but external routes from other areas are not advertised within the NSSA.
An admin should check this and change it
https://www.packetswitch.co.uk/configuring-junos-ospf-stub-and-nssa-areas/
https://www.juniper.net/documentation/us/en/software/junos/ospf/topics/ref/statement/nssa-edit-protocols-ospf.html
NEW QUESTION # 45
You are currently using VLAN IDs 2 through 300 within your Layer 2 domain and you need to configure VSTP to prevent loops You must ensure that all VL ANs are loop free.
In this scenario, which statement is correct?
- A. You must ensure that the VLANs are balanced between two different root bridges.
- B. You must enable all VLANs, 2 through 300, under the VSTP configuration
- C. You must ensure that the bridge priority is set to the lowest value on all switches in the Layer 2 domain.
- D. You must enable RSTP to account for all VLANs.
Answer: B
NEW QUESTION # 46
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. Junos OS supports ingress replication for BUM traffic forwarding.
- C. Type 1 route advertisements always have the single-active flag set to 0.
- D. Type 1 route advertisements always have the single-active flag set to 1.
Answer: B,C
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 # 47
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. An IP prefix route provides encoding for intra-subnet forwarding.
- C. The border devices must be able to perform Layer 3 routing and provide IRB functionality.
- D. Type 2 and Type 5 routes will be exchanged between DC1 and DC2.
Answer: C
Explanation:
https://www.juniper.net/documentation/us/en/software/junos/evpn-vxlan/topics/concept/evpn- route-type5-understanding.html
NEW QUESTION # 48
You recently implemented the configurations shown in the exhibit. After committing these changes, the community devices connected to AS-1 are not able to communication with the appropriate community devices connected to AS-2.
What must be to allow these community devices to communicate?
- A. You must configure the ge-0/0/1 interface on both switches the inter-switch links.
- B. You must configure an isolation VLAN ID under the vlan-pri vlan on the AS-2 switch.
- C. You must configure an isolation VLAN ID under the vlan-pri VLAN on both switches.
- D. You must configure the ge-0/0/10 interface on AS-1 as the inter-switch link.
- E. You must configure to allow the ge-0/0/1 interface on AS-1 as the inter-switch.
Answer: A
NEW QUESTION # 49
Referring to the exhibit, which statement is correct when a failure exists on the link between host2 and switch5 on this EVPN-VXLAN fabric?
- A. The switch5 device will send a Type 4 route to all peers.
- B. The switch5 device will send a Type 2 route to all peers.
- C. The switch5 device will send a Type 1 route to all peers.
- D. The switch5 device will send a Type 3 route to all peers.
Answer: C
Explanation:
Type 1 routes are used for per-ES auto-discovery (A-D) to advertise EVPN multi-homing mode. Remote ToR leaf devices in the EVPN network use the EVPN Type 1 route type functionality to learn the EVPN Type 2 MAC routes from other leaf devices. In this route type ESI and the Ethernet Tag ID are considered to be part of the prefix in the NLRI. Upon a link failure between ToR leaf and end server VTEP withdraws Ethernet Auto-Discovery routes (Type 1) per ES. The Juniper EVPN multi-homing Ethernet Tag value is set to the VLAN ID for ES auto-discovery/ES route types. Mass Withdrawal - Used for fast convergence during link failure scenarios between leaf devices to the end server using Type 1 EAD/ES routes.
NEW QUESTION # 50
You have scheduled maintenance operations for one of the devices in your OSPF network.
Referring to the exhibit, which three statements are correct? (Choose three.)
- A. R1 does not participate in OSPF routing.
- B. R1 does not send or receive transit traffic during the maintenance window even if no alternative paths exist to the given destination.
- C. The metrics for all transit interfaces on R1 is set to the maximum value of 65,535.
- D. Any traffic destined for networks that terminate on R1 will still be forwarded to R1.
- E. R1 participates in OSPF routing but does not send or receive transit traffic.
Answer: C,D,E
Explanation:
- Configure the local routing device so that it appears to be overloaded. You might do this when you want the routing device to participate in OSPF routing, but do not want it to be used for transit traffic. - Traffic destined to directly attached interfaces continues to reach the routing device. - When configured, the transit interface metrics are set to the maximum value of 65535.
https://www.juniper.net/documentation/us/en/software/junos/ospf/topics/ref/statement/overload-edit-protocols-os
https://www.juniper.net/documentation/us/en/software/junos/ospf/topics/topic-map/configuring-ospf-route-contr
NEW QUESTION # 51
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 a GRE tunnel to encapsulate the L2PT traffic across the WAN.
- B. Disable the BPDU block function on the access switches.
- C. Disable the BPDU block function on the distribution switch.
- D. Configure the links between the access switches and the distribution switch as a trunk port.
Answer: D
NEW QUESTION # 52
Click the Exhibit.
Switch 4 is rebooted as shown in the exhibit.
Which statement is correct in this scenario?
- A. CIST generates notification events.
- B. MSTI-2 is reconverged.
- C. MSTI-1 is reconverged.
- D. CIST is reconverged.
Answer: C
NEW QUESTION # 53
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?
- A. best-effort
- B. assured-forwarding
- C. network-control
- D. expedited-forwarding
Answer: B
NEW QUESTION # 54
You are authenticating user devices connected to your ex Series switch. You have 802.1X and MAC RADIUS configured for all ports. A user is complaining about the time it takes to connect their non- 802.1X device on ge-0/0/15 using MAC RADIUS authentication.
Referring to the exhibit, what should be done to accelerate the authentication process?
- A. Change the 802.1X retry attempts value to 5 on ge-0/0/15
- B. Change the supplicant mode to multiple on ge-0/0/15
- C. Configure the no-reauthentication feature for 802.1X on ge-0/0/15
- D. Configure the restrict feature for MAC RADIUS on ge-0/0/15.
Answer: B
NEW QUESTION # 55
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