What Approved JN0-648 Free Practice Test Is

NEW QUESTION 1
Exhibit.

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 MTU mismatch
• C. There is an invalid IPv4 router ID
• D. There is an area mismatch

Answer: D

NEW QUESTION 2
Which BGP message type contains NLRI information?

• A. notification
• B. keepalive
• C. update
• D. open

Answer: C

NEW QUESTION 3
Which three types of ports are used for Junos Fusion Enterprise? (Choose three. )

• A. extended port
• B. authenticated port
• C. cascade port
• D. uplink port
• E. designated port

Answer: ACD

NEW QUESTION 4
Which protocol is used for port-level access control and authentication?

• A. MD5
• B. IPsec
• C. 802.1x
• D. AES

Answer: C

NEW QUESTION 5
Which two statements are true regarding bidirectional PIM? (Choose two )

• A. It eliminates the need for an RP.
• B. Devices only store group specific entries.
• C. It uses multicast tunneling to forward traffic
• D. Forwarding paths can be suboptimal

Answer: BD

NEW QUESTION 6
When configuring class of services, what would be you use to allocate bandwidth to a forwarding class?

• A. buffer depth
• B. transmit rate
• C. bandwidth
• D. speed

Answer: B

NEW QUESTION 7
You want to view the VLANs that have been created dynamically using MVRP. Which operational mode command will display this information?

• A. Show mvrp dynamic-vlan memberships
• B. Show mvrp interface
• C. Show mvrp registration-state
• D. Show mvrp applicant-state

Answer: A

NEW QUESTION 8
Which two statements about OSPF routing policies are correct? (Choose two.)

• A. By default, OSPF export policies reject network-summary LSAs.
• B. By default, OSPF export policies accept network-summary LSAs.
• C. By default, OSPF import policies accept network-summary LSAs.
• D. By default, OSPF import policies reject network-summary LSAs.

Answer: AC

NEW QUESTION 9
Exhibit.


Referring to the exhibit, there are multiple ASM groups in the 224 0 0.0/4 range
Which configuration change is needed to ensure R1 is always the RP for group 224.224.1.1?

• A. Increase the priority on R1 to higher than R2
• B. Configure R1 with a higher local RP address
• C. Set the priority on R1 to zero
• D. Ensure R1 has a more specific group range

Answer: A

NEW QUESTION 10
Click the Exhibit button.

Referring to the exhibit, the source is currently sending multicast traffic using group 224.1.1.1, which is being received by R1. R2 is not receiving PIM register messages.
What would be the cause of this problem?

• A. Tunnel services have not been enabled on R1.
• B. All routers have not been configured with the same Auto-RP discovery group.
• C. R5 has not received an IGMP report of 224.1.1.1.
• D. A(*,G) tree has not been built yet.

Answer: C

NEW QUESTION 11
Which EVPN route type is used for fast convergence and for advertising the split horizon label?

• A. Type 4
• B. Type 2
• C. Type 1
• D. Type 5

Answer: C

NEW QUESTION 12
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 local device's POUs are marked with a metric of 65535
• C. The ISIS adjacencies become passive
• D. The IS-IS adjacencies enter the "new" state

Answer: A

NEW QUESTION 13
What information is contained in an OSPF LSA header? (Choose two.)

• A. protocol
• B. options
• C. length
• D. subnet mask

Answer: BC

NEW QUESTION 14
Click the Exhibit button.

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

• A. R2 has interface ge-0/0 configured as a passive interface under OSPFv3.
• B. R2 has interface ge-0/0/2 configured as a passive interface under OSPFv3.
• C. R2 has an interface policy with external type 1 configured.
• D. R2 has interface ge-0/0/2 configured in another area under OSPFv3.

Answer: C

NEW QUESTION 15
Exhibit.

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

• A. After the formation of the shortest-path tree, a join message is sent from R2 to R1.
• B. After the formation of the shortest-path tree, a join message is sent from R1 to R5
• C. After the formation of the shortest-path tree, a prune message is sent from R1 to R2.
• D. After the formation of the shortest-path free, a prune message is sent from R1 to R5.

Answer: C

NEW QUESTION 16
When redistributing IGP routes into BGP. what information .s used by default on Junos platforms to determine
the BGP route's MED attribute value?

• A. routing information base
• B. the IGP route preference
• C. the IGP Metric
• D. route protocol source

Answer: C

NEW QUESTION 17
Click the Exhibit button.


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.)

• A. Add interface ge-0/0/1 under the IPv4 unicast realm for both routers.
• B. Add the IPv6 family protocol under ge-0/0/2 for both routers.
• C. Add the lo0 interface under OSPFv3 for both routers.
• D. Add interface ge-0/0/2 under OSPFv3 for both routers.

Answer: AB

NEW QUESTION 18
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 S-VLAN is disabled.
• B. The VLAN range overlaps.
• C. The C-VLANs are disabled.
• D. There are no active ports.

Answer: D

NEW QUESTION 19
Click the Exhibit button.

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 protocols bgp group BGP-MESH peer-as
• B. set policy-options policy-statement NHS term BGP_ROUTES from external
• C. set protocols bgp group BGP-MESH import NHS
• D. delete protocols bgp group BGP-MESH export NHS

Answer: B

NEW QUESTION 20
You are redistributing static routes into an OSPF area. Which two statement are true is this scenario? (Choose two.)

• A. The external route advertisements have a domain scope.
• B. The area must be stub area.
• C. The area must be the backbone area.
• D. The routes can be advertised in type 7 LSAs.

Answer: CD

NEW QUESTION 21
Packets enter a Juniper device and are classified as best effort. During the processing of the packet, the classification of the packets is changed to expedited forwarding by a multi-field classifier. The device is using the default CoS policies
Which statement is true in this scenario?

• A. The packet is forwarded according to the new packet classification, and the DSCP bits are rewritten to the new class.
• B. The packet is forwarded according to the new packet classification, and the DSCP bits do not change.
• C. The packet is forwarded according to the original packet classification, and the DSCP bits do not change.
• D. The packet is forwarded according to the original packet classification, and the DSCP bits are rewritten to the new class.

Answer: B

NEW QUESTION 22
Exhibit.

You are configuring, the PVLAN feature on your switches. The PVLAN will span the two EX Series switches shown in the exhibit
Which three configuration parameters must be enabled on the ports connecting the two switches? (Choose three. )

• A. family inet
• B. interface-mode access
• C. interface-mode trunk
• D. family Ethernet-switching
• E. inter-switch-link

Answer: CDE

NEW QUESTION 23
You must ensure that all management traffic sourced from your Junos devices is set with a specific DSCP code-point value.
Which action will accomplish this task?

• A. Apply the DSCP code-point to the [edit class-of-service host-outbound-traffic] hierarchy.
• B. Apply the DSCP code-point to the [edit class-of-service interface lo0.0] hierarchy
• C. Apply the DSCP code-point in an egress policer.
• D. Apply the DSCP code-point to a rewrite rule.

Answer: A

NEW QUESTION 24
Exhibit.


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

• A. All strict-high priority queues are serviced in a round-robin fashion as long as they have remaining credits
• B. All strict-high priority queues are serviced in a round-robin fashion regardless of available credits.
• C. Packets in low priority queues transmit only when start-high priority queues are empty
• D. Packets in low priority queues are serviced when strict-high priority queues have no available credits

Answer: AC

NEW QUESTION 25
Click the Exhibit button.


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?

• A. Apply the set protocols bgp group EVPN family inet-vpn any configuration on MX1 and MX?
• B. Apply the set protocols bgp group EVPN family EVPN signaling configuration on MX2.
• C. Apply the delete protocols bgp group EVPN multipath multiple-an configuration on MX1 and MX2
• D. Apply the delete protocols bgp group EVPN cluster 172 .1.1. 53 configuration on MX2

Answer: B

NEW QUESTION 26
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