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JN0-649 Practice Exam Questions and Answers

Enterprise Routing and Switching Professional (JNCIP-ENT)

Last Update 6 days ago
Total Questions : 65

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Question # 1

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

Options:

A.  

LSA flooding guarantees that all routers will receive them successfully.

B.  

LSAs are sent over a TCP connection.

C.  

LSAs are acknowledged by the neighboring router.

D.  

LSAs are advertised with an acknowledgement bit.

Discussion 0
Question # 2

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?

Options:

A.  

single supplicant mode

B.  

multiple supplicant mode

C.  

single-secure supplicant mode

D.  

MAC authentication mode

Discussion 0
Question # 3

You are asked to implement fault tolerant RPs in your multicast network.

Which two solutions would accomplish this behavior? (Choose two.)

Options:

A.  

Use BFD with statically defined RPs.

B.  

Use MSDP with statically defined RPs.

C.  

Use anycast PIM with statically defined RPs.

D.  

Use IGMPv3 with statically defined RPs.

Discussion 0
Question # 4

The connection between DC1 and DC2 is routed as shown in the exhibit.

In this scenario, which statement is correct?

Question # 4

Options:

A.  

The border devices must be able to perform Layer 3 routing and provide IRB functionality.

B.  

L3VPN must be enabled to advertise reachability.

C.  

An IP prefix route provides encoding for intra-subnet forwarding.

D.  

Type 2 and Type 5 routes will be exchanged between DC1 and DC2.

Discussion 0
Question # 5

You are asked to establish full connectivity between all devices in the BGP network.

Referring to the exhibit, which two configuration changes will allow BGP route advertisements? (Choose two.)

Question # 5

Options:

A.  

On R2, include the loops 2 statement at the [edit protocols bgp family inet unicast] hierarchy.

B.  

On R1 and R3, include the loops 2 statement at the [edit protocols bgp family inet unicast] hierarchy.

C.  

On R1 and R3, include the advertise-peer-as statement at the [edit protocols bgp group external] hierarchy.

D.  

On R2, include the advertise-peer-as statement at the [edit protocols bgp group external] hierarchy.

Discussion 0
Question # 6

A Layer 2 connection does not expend across data centers. The IP subnet in a Layer 2 domain is confined within a single data center.

Which EVPN route type is used to communicate prefixes between the data centers?

Options:

A.  

Type 1

B.  

Type 2

C.  

Type 4

D.  

Type 5

Discussion 0
Question # 7

You are asked to troubleshoot voice quality issues on your newly implement VoIP network. You notice that the voice packets are being dropped. You have verified that the packets are correctly marked for expedited forwarding queue.

Referring to the exhibit, what must you configure to solve the problem?

Question # 7

Question # 7

Question # 7

Question # 7

Question # 7

Options:

A.  

You must configure a multifield classifier to put the VoIP traffic in the correct queue.

B.  

You must configure a rewrite rule to ensure that the traffic is scheduled properly in the device.

C.  

You must configure a scheduler to allocate bandwidth to the expedited forwarding queue.

D.  

You must configure a policer to ensure that the queue is not being starved.

Discussion 0
Question # 8

A user is attempting to watch a high-definition video being streamed from the media server over the network. However, the user complains that the experienced video quality is poor. While logged on to router B, a Juniper Networks device, you notice that video packets are being dropped.

In this scenario, what would solve this problem?

Question # 8

Options:

A.  

Adjust the scheduler for the expedited-forwarding forwarding class to support a higher transmit rate.

B.  

Adjust the expedited-forwarding BA classifier to router B's ge-0/0/0 interface to support a higher transmit rate.

C.  

Adjust the scheduler-map to support a higher transmit rate.

D.  

Adjust the expedited-forwarding BA classifier on router B's ge-0/0/1 interface to support a higher transmit rate.

Discussion 0
Question # 9

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.)

Question # 9

Options:

A.  

R1 does not participate in OSPF routing.

B.  

Any traffic destined for networks that terminate on R1 will still be forwarded to R1.

C.  

The metrics for all transit interfaces on R1 is set to the maximum value of 65,535.

D.  

R1 participates in OSPF routing but does not send or receive transit traffic.

E.  

R1 does not send or receive transit traffic during the maintenance window even if no alternative paths exist to the given destination.

Discussion 0
Question # 10

Referring to the exhibit, a PIM-SM network is set up to enable communication between multicast devices.

Which two statements are true? (Choose two.)

Question # 10

Options:

A.  

Before the formation of the rendezvous-point tree, a join message is sent from R1 to R3.

B.  

Before the formation of the rendezvous-point tree, an IGMP is sent from the Receiver to R1.

C.  

Before the formation of the rendezvous-point tree, an IGMP is sent from the Source to R5.

D.  

Before the formation of the rendezvous-point tree, a join message is sent from R1 to R5.

Discussion 0
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