22 April, 2023

The Improved Guide To JN0-648 Practice

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Total 89 questions Full Exam Access

Question 1

Click the Exhibit button.
JN0-648 dumps exhibit

You have configured MSTP in your Layer 2 network. You are having problems with it establishing correctly. Referring to the exhibit, what is causing the problem?

You must assign a context ID number other than zero

The MSTI-to-VLAN mapping does not match

The region name is not correct

The revision number is the same on both devices

Question 2

which protocol is a multicast routing protocol?

OSPF

BGP

PIM

IS-IS

Question 3

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.

Question 4

Click the Exhibit button.
JN0-648 dumps exhibit

Which well-known community needs to be used to restrict 10.0.0.0/8 from being advertised to AS 2?

no-publish

no-advertise

no-export-subconfed

no-export

Question 5

Exhibit.

You have applied the CoS configuration shown in the exhibit to an EX4300 switch. Which two statements are true? (Choose two. )

All strict-high priority queues are serviced in a round-robin fashion as long as they have remaining credits

All strict-high priority queues are serviced in a round-robin fashion regardless of available credits.

Packets in low priority queues transmit only when start-high priority queues are empty

Packets in low priority queues are serviced when strict-high priority queues have no available credits

Question 6

You are deploying IP phones in your Layer 2 network and are asked to ensure that the switch sends VLAN and CoS information to the IP phones automatically.
In this scenario, which protocol should be used?

PoE

PoE+

LLDP

LLDP_MED

Question 7

Click the Exhibit button.
JN0-648 dumps exhibit

Referring to the exhibit, how is R1 learning the route from R2? R2 has an export policy with external type 2 configured.

R2 has interface ge-0/0 configured as a passive interface under OSPFv3.

R2 has interface ge-0/0/2 configured as a passive interface under OSPFv3.

R2 has an interface policy with external type 1 configured.

R2 has interface ge-0/0/2 configured in another area under OSPFv3.

Question 8

Which three types of ports are used for Junos Fusion Enterprise? (Choose three. )

extended port

authenticated port

cascade port

uplink port

designated port

Question 9

Click the Exhibit button.
JN0-648 dumps exhibit

There is a functioning OSPFv3 neighborship between Router-1 and Router-2 over the ge-0/0/1 link. However, the 172.100.100.0/24 and 172.101.101.100/24 routes are not being shared through OSPFv3.
Referring to the configuration shown in the exhibit, which two actions must you take to solve the problem? (Choose two.)

Add interface ge-0/0/1 under the IPv4 unicast realm for both routers.

Add the IPv6 family protocol under ge-0/0/2 for both routers.

Add the lo0 interface under OSPFv3 for both routers.

Add interface ge-0/0/2 under OSPFv3 for both routers.

Question 10

Click the Exhibit button.
JN0-648 dumps exhibit

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

Question 11

Which two statements about BGP communities are true? (Choose two.)

A prefix can only belong to one community.

A prefix can belong to more than community.

A community is not a transitive attribute.

A BGP device can set, append, or modify the community of a route.

Question 12

Click the Exhibit button.
JN0-648 dumps exhibit

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.

Question 13

Click the Exhibit button.
JN0-648 dumps exhibit

You are configuring BGP policies for a site with a dual-homed connection as shown in the exhibit. You must ensure that inbound traffic from Internet hosts flow through the ISP A connection.
Which statement is correct in this scenario?

Apply a BGP export policy on R1 to assign a lower MED value to routes advertised to ISP A

Apply a BGP export policy on R1 to assign a higher local preference value to routes advertised to ISP A

Apply a BGP export policy onR2to assign a lower origin value to routes advertised to ISP B

Apply a BGP export policy to R2 to prepend [65001 65001 65001 65001 65001] to the AS path of routes advertised to ISP B

Question 14

You have an IPv4 multicast network configured as PIM-SM. What must be done before replacing your static RP with auto-RP?

Enable sparse-dense mode on each of the routers in the network.

Configure auto-RP domains on each router in the network.

Configure each router in the network as a candidate BSR.

Enable each router in the network to forward multicast packets.

Question 15

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.

Question 16

Click the Exhibit button.
JN0-648 dumps exhibit

You recently implemented the configuration shown in the exhibit. After committing these changes, the community devices connected to AS-1 are not able to communicate with the appropriate community devices connected to AS-2.
What must be done to allow these community devices to communicate?

You must configure to allow the ge-0/0/1 interface on AS-1 as the inter-switch.

You must configure the ge-0/0/10 interface on AS-1 as the inter-switch link.

You must configure the ge-0/0/1 interface on both switches the inter-switch links.

You must configure an isolation VLAN ID under the vlan-pri vlan on the AS-2 switch.

You must configure an isolation VLAN ID under the vlan-pri VLAN on both switches.

Question 17

You are using 802.1X in your access network consisting of EX Series switches. You recently had a failure with your RADIUS server which resulted in authenticating client devices being denied access to the network. You want to change this behavior so that authenticating clients are directed to a remediation VLAN.
Which RADIUS server failback setting satisfies this requirement?

permit

move

sustain

deny

Question 18

Exhibit.

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?

Change the supplicant mode to multiple on ge-0/0/15

Configure the no-reauthentication feature for 802.1X on ge-0/0/15

Configure the restrict feature for MAC RADIUS on ge-0/0/15.

Change the 802.1X retry attempts value to 5 on ge-0/0/15

Question 19

Exhibit.

Referring to the exhibit, which two statements are true regarding Q-in-Q tunneling? {Choose two)

The C-VLAN traffic will be encapsulated with an outer VLAN tag of 10.

The C-VLANs 100-200 will be sent as the inner VLAN tag

The C-VLAN 150 will be sent as the inner VLAN tag

The C-VLAN traffic will be encapsulated with an outer VLAN lag of 150

Question 20

Click the Exhibit button.
JN0-648 dumps exhibit

You are configuring BGP policies for a site with a dual-homed connection as shown in the exhibit. You need all outbound traffic to egress the network through the link to ISP B by default. The ISPs should not be able to override this behavior through BGP attributes.
Which BGP attribute would you modify on the ISP-received routes to accomplish this objective?

local preference

next-hop

MED

origin

Question 21

Exhibit.

Referring to the exhibit, on which three IS-IS routers will the attached bit be set? (Choose three. )

Question 22

Exhibit.

Referring to the exhibit, a RMSM network is set up to enable communication between multicast devices. Which statement is true in this scenario?

After the formation of the shortest-path tree, a join message is sent from R2 to R1.

After the formation of the shortest-path tree, a join message is sent from R1 to R5

After the formation of the shortest-path tree, a prune message is sent from R1 to R2.

After the formation of the shortest-path free, a prune message is sent from R1 to R5.

Question 23

Your company has expanded into office space across the street. The new office space has a single Ethernet connection connected to an unmanaged switch. You must sort traffic based on the IP address into different VLANs once the traffic arrives on your EX Series switches. D18912E1457D5D1DDCBD40AB3BF70D5D
Which mechanism would you use to accomplish this task?

MVRP

filter-based VLANs

Q-in-Q tunneling

dynamic VLANs

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Total 89 questions Full Exam Access