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JN0-648 Questions and Answers

Note! Following JN0-648 Exam is Retired now. Please select the alternative replacement for your Exam Certification. The new exam code is JN0-649

JN0-648 Questions and Answers

Question # 6

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

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Question # 7

You are designing a multicast topology to support IPv4 IPTV broadcasts in your organization. The design should support multiple multicast senders with overlapping group addresses while preventing interference between them. Client devices currently do not support IGMPv3.

Which approach would fulfill these requirements?

A.

Implement PIM-SM and SSM with SSM maps to support IGMPv2 clients

B.

Implement bidirectional PIM

C.

Assign group addresses in the 224/4 range and implement PIM-DM

D.

Implement MLD

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Question # 8

Your IPv4 multicast network uses different MX Series routers for the source DR and the PIM sparse-mode RP.

What is required before PIM register messages are exchanged between the DR and RP routers?

A.

Add a tunnel services PIC to the RP router.

B.

Add an adaptive services PIC to the DR router.

C.

Enable tunnel services on the DR and RP routers.

D.

Configure PIM encapsulation on the DR and RP routers.

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Question # 9

Click the Exhibit button.

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?

A.

local preference

B.

next-hop

C.

MED

D.

origin

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Question # 10

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

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Question # 11

You are 802.1X supplicant, but traffic must be accepted once the user has authenticated their computer on the port In this scenario, which supplicant mode should be used?

A.

single-secure

B.

single

C.

multiple

D.

captive-portal

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Question # 12

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?

A.

PoE

B.

PoE+

C.

LLDP

D.

LLDP_MED

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Question # 13

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?

A.

Traffic exceeding the committed-burst size will be marked with a loss priority of high.

B.

Traffic exceeding the excess-burst size will be discarded.

C.

Traffic exceeding the committed-information-rate will be rate limited.

D.

Traffic exceeding the committed-burst size will be discarded.

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