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Exam JN0-649 topic 1 question 61 discussion

Actual exam question from Juniper's JN0-649
Question #: 61
Topic #: 1
[All JN0-649 Questions]

You are deploying IP phones in your enterprise networks. When plugged in, the IP phones must automatically negotiate the power requirements for the new connection with the EX Series switches.
In this scenario, which protocol should be used to enable this behavior?

  • A. CDP
  • B. MP-BGP
  • C. LLDP-MED
  • D. LLDP
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Suggested Answer: C 🗳️
by Wallsee at Dec. 19, 2022, 1:01 p.m.

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e359166
10 months ago
Selected Answer: C
LLDP-MED goes one step further than LLDP, exchanging IP-telephony messages between the switch and the IP telephone.
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Testmig
10 months, 2 weeks ago
I will go with D. {master:0}[edit protocols lldp] root@vQFXRE2# show interface all; interface xe-0/0/1 { power-negotiation; } LLDP and LLDP-MED also provide PoE power management capabilities. LLDP power negotiation allows the switch to manage PoE power by negotiating with LLDP-enabled powered devices to dynamically allocate PoE power as needed. LLDP power priority allows an LLDP-enabled powered device to set the PoE power priority on the switch interface to which it connects. https://www.juniper.net/documentation/us/en/software/junos/user-access/topics/topic-map/device-discovery-using-lldp-lldp-med.html#d146e357 https://www.juniper.net/documentation/us/en/software/junos/user-access/topics/topic-map/device-discovery-using-lldp-lldp-med.html#id-understanding-lldp-and-lldp-med-on-ex-series-switches.
upvoted 2 times
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harrypogi
1 year, 1 month ago
C is correct
upvoted 1 times
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Wallsee
1 year, 10 months ago
should be C
upvoted 1 times
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