[Oct 08, 2025] JN0-649 Dumps PDF and Test Engine Exam Questions - PassTestking [Q70-Q90]

Rate this post

[Oct 08, 2025] JN0-649 Dumps PDF and Test Engine Exam Questions – PassTestking

Verified JN0-649 exam dumps Q&As with Correct 195 Questions and Answers

Q70. Which two multicast listener registration protocols are supported in the Junos operating system? (Choose two.)

MLD

DVMRP

IGMP

PIM

Q71. In OSPF, how does a router ensure that LSAs advertised to a neighboring router are received?

LSA flooding guarantees that all routers will receive them successfully.

LSAs are sent over a TCP connection.

LSAs are acknowledged by the neighboring router.

LSAs are advertised with an acknowledgement bit.

Q72. 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.

Q73. You are configuring an EVPN overlay to allow VLANs to be stretched between two campus sites, but EVPN routes are not being exchanged. Referring to the exhibit, which configuration statement would solve this problem?

Apply the set protocols bgp group EVPN family inet-vpn any configuration on MX1 and MX?

Apply the set protocols bgp group EVPN family EVPN signaling configuration on MX2.

Apply the delete protocols bgp group EVPN multipath multiple-an configuration on MX1 and MX2

Apply the delete protocols bgp group EVPN cluster 172 .1.1. 53 configuration on MX2

Q74. 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?

The S-VLAN is disabled.

The VLAN range overlaps.

The C-VLANs are disabled.

There are no active ports.

Q75. In IS-IS advertising POUs with the overload bit has which effect?

The local device will no longer be used for transit traffic

The local device’s POUs are marked with a metric of 65535

The ISIS adjacencies become passive

The IS-IS adjacencies enter the “new” state

Q76. 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.

Q77. You have an MX960 configured as a Fusion aggregation device (AD) and two QFX5100 switches as satellite devices (SD). You have configured local-switching for each SD. A packet with an unknown MAC address is received on one of the SD extended ports.
Which statement is correct in this scenario?

The packet is dropped and a reject message is sent out to the port where it was received.

The packet is silently discarded and a reject message is sent to the AD.

The packet is flooded out of all the ports on the SD except the one where it was received.

The packet is sent to the AD to be processed and forwarded.

Q78. 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.)

Configure an RP set in PIM on R1, allowing R1 to forward PIM register messages to R2 and R3 in the set.

Configure an MSDP protocol between R2 and R3.

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.

Configure an MSDP protocol between R1 and R2.

Q79. 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?

You must enable RSTP to account for all VLANs.

You must ensure that the VLANs are balanced between two different root bridges.

You must ensure that the bridge priority is set to the lowest value on all switches in the Layer 2 domain.

You must enable all VLANs, 2 through 300, under the VSTP configuration

Q80. You have deployed the access control configuration to the distribution switch.

Referring to the exhibit, which statement is true?

All hosts connected to the access switch will have access to the work after one device authenticates.

All hosts connected to the access switch require authentication to access the network.

Only the first host to authenticate will have access to the network; other hosts will be blocked.

All hosts connected to the access switch will have access to the network without authentication.

Q81. You are deploying an 802.1X solution and must determine what would happen if clients are unable to re-authenticate to the RADIUS server.
In this scenario, which configuration would provide access to the network if the supplicant is already authenticated?

move

permit

deny

sustain

Q82. Which two multicast listener registration protocols are supported in the Junos operating system?
(Choose two.)

MLD

DVMRP

IGMP

PIM

Q83. You are running OSPF as your IGP. The interfaces connecting two routers are in the ExStart state. You notice that something is incorrect with the configuration. Referring to the exhibit, which statement is correct?

The subnet mask is incorrect.

The MTU setting are incorrect.

The interface type is incorrect.

The IP addresses are incorrect.

Q84. 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.

Q85. 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?

single supplicant mode

multiple supplicant mode

single-secure supplicant mode

MAC authentication mode

Q86. Which two statements are true about IS-IS levels? (Choose two.)

Level 2 systems do not advertise Level 2 routes into a Level area by default.

Level 2 systems must use the loopback address as a part of the ISO network address.

Level 1 system only from adjacencies with other systems that have different area IDs.

Level 1 systems use a default route to reach AS external routes located in other areas.

Q87. Router R1, in peer AS 65001, advertises routes to R2 using EBGP. R2 advertises the routes learned from R1 to R3 using IBGP.

Referring to the exhibit, to which routers will R3 advertise the BGP routes received from R2?

R6, R7

R4, R5, R6, R7

R4, R5

R2, R4, R5, R6, R7

Q88. Click the Exhibit button. Referring to the exhibit, how is R5 able to learn the networks that exist within the NSSA?

R5 learns those networks from Type 3 LSAs advertised by R2.

R5 learns those networks from Type 3 LSAs advertised by R3.

R5 does not learn those networks and uses a default route advertised by R3 instead.

R5 does not learn those networks but uses a default route advertised by R2 instead.

Q89. Referring to the exhibit, ServerA sends a single IP packet destined to 10.0.0.127.
Which two statements correctly describe the behavior of the resulting outbound VXLAN packets that contain the original packet destined to 10.0.0.127? (Choose two.)