Latest Success Metrics For Actual JN0-664 Exam (Updated 67 Questions) [Q34-Q57] – IT Certification Exam Questions & Answers

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Latest Success Metrics For Actual JN0-664 Exam (Updated 67 Questions)

Genuine JN0-664 Exam Dumps Free Demo Valid QA’s

Juniper JN0-664 (Service Provider, Professional (JNCIP-SP)) Exam is an excellent certification for network professionals who want to demonstrate their advanced knowledge and skills in service provider routing and switching technologies. It is a challenging exam that requires a solid understanding of Juniper Networks technology, but passing it can open up new career opportunities and enhance your professional credibility.

The JN0-664 exam is a 65-question, multiple-choice exam that can be taken online or at a testing center. JN0-664 exam is rigorous and requires a high degree of knowledge and skill in service provider networking. However, with the right preparation and practice, you can easily pass the exam and earn your certification.

NEW QUESTION 34
Which two statements describe PIM-SM? (Choose two)

Routers with receivers send join messages to their upstream neighbors.

Routers without receivers must periodically prune themselves from the SPT.

Traffic is initially flooded to all routers and an S,G is maintained for each group

Traffic is only forwarded to routers that request to join the distribution tree.

NEW QUESTION 35
A packet is received on an interface configured with transmission scheduling. One of the configured queues In this scenario, which two actions will be taken by default on a Junos device? (Choose two.)

The excess traffic will be discarded

The exceeding queue will be considered to have negative bandwidth credit.

The excess traffic will use bandwidth available from other queueses

The exceeding queue will be considered to have positive bandwidth credit

NEW QUESTION 36
Exhibit

You have MAC addresses moving in your EVPN environment
Referring to the exhibit, which two statements are correct about the sequence number? (Choose two)

It identifies MAC addresses that should be discarded.

It resolves conflicting MAC address ownership claims.

It helps the local PE to identify the latest advertisement.

It is advertised using a Type 2 message

NEW QUESTION 37
When building an interprovider VPN, you notice on the PE router that you have hidden routes which are received from your BGP peer with family inet labeled-unica3t configured.
Which parameter must you configure to solve this problem?

Under the family inet labeled-unicast hierarchy, add the explicit null parameter.

Under the protocols ospf hierarchy, add the traffic-engineering parameter.

Under the family inet labeled-unicast hierarchy, add the resolve-vpn parameter.

Under the protocols mpls hierarchy, add the traffic-engineering parameter

NEW QUESTION 38
Which two statements are correct about the customer interface in an LDP-signaled pseudowire? (Choose two)

When the encapsulation is vlan-ccc or extended-vlan-ccc, the configured VLAN tag is not included in the control plane LDP advertisement

When the encapsulation is ethernet-ccc, only frames without a VLAN tag are accepted in the data plane

When the encapsulation is vLan-ccc or extended-vlan-ccc, the configured VLAN tag is included in the control plane LDP advertisement

When the encapsulation is ethemet-ccc, tagged and untagged frames are both accepted in the data plane.

NEW QUESTION 39
Exhibit

You are asked to exchange routes between R1 and R4 as shown in the exhibit. These two routers use the same AS number Which two steps will accomplish this task? (Choose two.)

Configure the BGP group with the advertise-peer-as parameter on R1 and R4.

Configure the BGP group with the as-override parameter on R2 and R3

Configure the BGP group with the advertise-peer-as parameter on R2 and R3.

Configure the BGP group with the as-override parameter on R1 and R4

NEW QUESTION 40
Exhibit

CE-1 must advertise ten subnets to PE-1 using BGP Once CE-1 starts advertising the subnets to PE-1, the BGP peering state changes to Active.
Referring to the CLI output shown in the exhibit, which statement is correct?

CE-1 is advertising its entire routing table.

CE-1 is configured with an incorrect peer AS

The prefix limit has been reached on PE-1

CE-1 is unreachable

NEW QUESTION 41
Exhibit

CE-1 and CE-2 are part of a VPLS called Customer1 No connectivity exists between CE-1 and CE-2. In the process of troubleshooting, you notice PE-1 is not learning any routes for this VPLS from PE-2, and PE-2 is not learning any routes for this VPLS from PE-1.

The route target must match on PE-1 and PE-2.

The route distinguisher must match on PE-1 and PE-2.

The instance type should be changed to I2vpn.

The no-tunnel-services statement should be deleted on both PEs.

NEW QUESTION 42
You are a network architect for a service provider and want to offer Layer 2 services to your customers You want to use EVPN for Layer 2 services in your existing MPLS network.
Which two statements are correct in this scenario? (Choose two.)

Segment routing must be configured on all PE routers.

VXLAN must be configured on all PE routers.

EVPN uses Type 2 routes to advertise MAC address and IP address pairs learned using ARP snooping

EVPN uses Type 3 routes to join a multicast tree to flood traffic.

NEW QUESTION 43
Which two statements are correct regarding bootstrap messages that are forwarded within a PIM sparse mode domain? (Choose two.)

Bootstrap messages are forwarded only to routers that explicitly requested the messages within the PIM sparse-mode domain

Bootstrap messages distribute RP information dynamically during an RP election.

Bootstrap messages are used to notify which router is the PIM RP

Bootstrap messages are forwarded to all routers within a PIM sparse-mode domain.

NEW QUESTION 44
Exhibit

A network designer would like to create a summary route as shown in the exhibit, but the configuration is not working.
Which three configuration changes will create a summary route? (Choose three.)

set policy-options policy-statement leak-v6 term DC-routes then reject

delete policy-options policy-statement leak-v6 term DC-routes from route-filter 2001: db9 :a: fa00 : :/6l longer

set policy-options policy-statement leak-v6 term DC-routes from route-filter 2001:db9:a:faOO::/61 exact

delete protocols isis export summary-v6

set protocols isis import summary-v6

NEW QUESTION 45
Exhibit

The environment is using BGP All devices are in the same AS with reachability redundancy Referring to the exhibit, which statement is correct?

RR1 is peered to Client2 and RR2

RR2 is in an OpenConfirm State until RR1 becomes unreachable.

Client1 is peered to Client2 and Client3.

Peering is dynamically discovered between all devices.

NEW QUESTION 46
Which two statements about IS-IS are correct? (Choose two.)

PSNPs are flooded periodically.

PSNPs contain only descriptions of LSPs.

CSNPs are flooded periodically

CSNPs contain only descriptions of LSPs.

NEW QUESTION 47
Exhibit

R4 is directly connected to both RPs (R2 and R3) R4 is currently sending all ,o,ns upstream to R3 but you want all joins to go to R2 instead Referring to the exhibit, which configuration change will solve this issue?

Change the bootstrap priority on R2 to be higher than R3

Change the default route in inet.2 on R4 from R3 as the next hop to R2

Change the local address on R2 to be higher than R3.

Change the group-range to be more specific on R2 than R3.

NEW QUESTION 48
Exhibit.

Referring to the exhibit; the 10.0.0.0/24 EBGP route is received on R5; however, the route is being hidden.
What are two solutions that will solve this problem? (Choose two.)

On R4, create a policy to change the BGP next hop to itself and apply it to IBGP as an export policy

Add the external interface prefix to the IGP routing tables

Add the internal interface prefix to the BGP routing tables.

On R4, create a policy to change the BGP next hop to 172.16.1.1 and apply it to IBGP as an export policy

NEW QUESTION 49
Exhibit

You are attempting to summarize routes from the 203.0.113.128/25 IP block on R8 to AS 64500. You implement the export policy shown in the exhibit and all routes from the routing table stop being advertised.
In this scenario, which two steps would you take to summarize the route in BGP? (Choose two.)

Remove the from protocol bgp command from the export policy.

Add the set protocols bgp family inet unicast add-path command to allow additional routes to the RIB tables. –

Add the set routing-options static route 203.0.113.123/25 discard command.

Replace exact in the export policy with orlonger.

NEW QUESTION 50
In which two ways does OSPF prevent routing loops in multi-area networks? (Choose two.)

All areas are required to connect as a full mesh.

The LFA algorithm prunes all looped paths within an area.

All areas are required to connect to area 0.

The SPF algorithm prunes looped paths within an area.

NEW QUESTION 51
Exhibit
user@Rl show configuration interpolated-profile { interpolate {
fill-level [ 50 75 drop-probability [ > }
class-of-service drop-profiles
];
20 60 ];
Which two statements are correct about the class-of-service configuration shown in the exhibit? (Choose two.)

The drop probability jumps immediately from 20% to 60% when the queue level reaches 75% full.

The drop probability gradually increases from 20% to 60% as the queue level increases from 50% full to
75% full

To use this drop profile, you reference it in a scheduler.

To use this drop profile, you apply it directly to an interface.

Explanation
class-of-service (CoS) is a feature that allows you to prioritize and manage network traffic based on various criteria, such as application type, user group, or packet loss priority. CoS uses different components to classify, mark, queue, schedule, shape, and drop traffic according to the configured policies.
One of the components of CoS is drop profiles, which define how packets are dropped when a queue is congested. Drop profiles use random early detection (RED) algorithm to drop packets randomly before the queue is full, which helps to avoid global synchronization and improve network performance. Drop profiles can be discrete or interpolated. A discrete drop profile maps a specific fill level of a queue to a specific drop probability. An interpolated drop profile maps a range of fill levels of a queue to a range of drop probabilities and interpolates the values in between.
In the exhibit, we can see that the class-of-service configuration shows an interpolated drop profile with two fill levels (50 and 75) and two drop probabilities (20 and 60). Based on this configuration, we can infer the following statements:
* The drop probability jumps immediately from 20% to 60% when the queue level reaches 75% full. This is not correct because the drop profile is interpolated, not discrete. This means that the drop probability gradually increases from 20% to 60% as the queue level increases from 50% full to 75% full. The drop probability for any fill level between 50% and 75% can be calculated by using linear interpolation formula.
* The drop probability gradually increases from 20% to 60% as the queue level increases from 50% full to
75% full. This is correct because the drop profile is interpolated and uses linear interpolation formula to calculate the drop probability for any fill level between 50% and 75%. For example, if the fill level is
60%, the drop probability is 28%, which is calculated by using the formula: (60 – 50) / (75 – 50) * (60 –
20) + 20 = 28.
* To use this drop profile, you reference it in a scheduler. This is correct because a scheduler is a component of CoS that determines how packets are dequeued from different queues and transmitted on an interface. A scheduler can reference a drop profile by using the random-detect statement under the
[edit class-of-service schedulers] hierarchy level. For example: scheduler test { transmit-rate percent 10; buffer-size percent 10; random-detect test-profile; }
* To use this drop profile, you apply it directly to an interface. This is not correct because a drop profile cannot be applied directly to an interface. A drop profile can only be referenced by a scheduler, which can be applied to an interface by using the scheduler-map statement under the [edit class-of-service interfaces] hierarchy level. For example: interfaces ge-0/0/0 { unit 0 { scheduler-map test-map; } }

NEW QUESTION 52
Which three mechanisms are used by Junos platforms to evaluate incoming traffic for CoS purposes? (Choose three )

rewrite rules

behavior aggregate classifiers

traffic shapers

fixed classifiers

multifield classifiers

NEW QUESTION 53
Exhibit

Referring to the exhibit, you must provide Internet access for VPN-A using CE-1 as the hub CE.
Which two statements are correct in this situation? (Choose two.)

You must use RIB groups to leak routes between the inet. o and vpn-a. inet. o tables.

RIB groups are not needed to leak routes between the inet. 0 and VPN-A. inet. 0 tables,

Internet traffic from Site 2 takes the path of PE-2 -> PE-1 -> GW-1.

Internet traffic from Site 2 takes the path of PE-2 -> PE-1 -> CE-1 -> PE-1 -> GW-1.

NEW QUESTION 54
What is the correct order of packet flow through configurable components in the Junos OS CoS features?

Multifield Classifier -> Behavior Aggregate Classifier -> Input Policer -> Forwarding Policy Options -> Fabric Scheduler -> Output Policer -> Rewrite Marker -> Scheduler/Shaper/RED

Behavior Aggregate Classifier -> Multifield Classifier -> Input Policer -> Forwarding Policy Options -> Fabric Scheduler -> Output Policer -> Scheduler/Shaper/RED -> Rewrite Marker

Behavior Aggregate Classifier -> Input Policer -> Multifield Classifier -> Forwarding Policy Options -> Fabric Scheduler -> Output Policer -> Scheduler/Shaper/RED -> Rewrite Marker

Behavior Aggregate Classifier -> Multifield Classifier -> Input Policer -> Forwarding Policy Options -> Fabric Scheduler -> Scheduler/Shaper/RED -> Output Policer -> Rewrite Marker

NEW QUESTION 55
Exhibit

Which two statements about the output shown in the exhibit are correct? (Choose two.)

The PE is attached to a single local site.

The connection has not flapped since it was initiated.

There has been a VLAN ID mismatch.

The PE router has the capability to pop flow labels

Explanation
According to 1 and 2, BGP Layer 2 VPNs use BGP to distribute endpoint provisioning information and set up pseudowires between PE devices. BGP uses the Layer 2 VPN (L2VPN) Routing Information Base (RIB) to store endpoint provisioning information, which is updated each time any Layer 2 virtual forwarding instance (VFI) is configured. The prefix and path information is stored in the L2VPN database, which allows BGP to make decisions about the best path.
In the output shown in the exhibit, we can see some information about the L2VPN RIB and the pseudowire state. Based on this information, we can infer the following statements:
* The PE is attached to a single local site. This is correct because the output shows only one local site ID (1) under the L2VPN RIB section. A local site ID is a unique identifier for a site within a VPLS domain.
If there were multiple local sites attached to the PE, we would see multiple local site IDs with different prefixes.
* The connection has not flapped since it was initiated. This is correct because the output shows that the uptime of the pseudowire is equal to its total uptime (1w6d). This means that the pseudowire has been up for one week and six days without any interruption or flap.
* There has been a VLAN ID mismatch. This is not correct because the output shows that the remote and local VLAN IDs are both 0 under the pseudowire state section. A VLAN ID mismatch occurs when the remote and local VLAN IDs are different, which can cause traffic loss or misdelivery. If there was a VLAN ID mismatch, we would see different values for the remote and local VLAN IDs.
* The PE router has the capability to pop flow labels. This is correct because the output shows that the flow label pop bit is set under the pseudowire state section. The flow label pop bit indicates that the PE router can pop (remove) the MPLS flow label from the packet before forwarding it to the CE device.
The flow label is an optional MPLS label that can be used for load balancing or traffic engineering purposes.

NEW QUESTION 56
Exhibit

Referring to the exhibit, you are receiving the 192.168 0 0/16 route on both R3 and R4 from your EBGP neighbor You must ensure that R1 and R2 receive both BGP routes from the route reflector In this scenario, which BGP feature should you configure to accomplish this behavior?