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Exam 300-115 topic 5 question 20 discussion

Actual exam question from Cisco's 300-115
Question #: 20
Topic #: 5
[All 300-115 Questions]

When using auxiliary VLANs, how is a phone configured with the appropriate VLAN to join?

  • A. the administrator configures the phone with CLI
  • B. the switch connected to the phone provides the VLAN
  • C. the PC attached to the phone provides the VLAN information
  • D. a VMPS server provides the VLAN for the switch and phone B
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Suggested Answer: Explanation 🗳️
When using auxiliary VLANs, the switch connected to the phone provides the VLAN to the phone. IP telephones typically have a built in 3-port 10/100 hub. One port internally attaches to the phone, one port is attached to the switch access port, and the other is used to connect to the workstation. The PC attached to the switch port via the IP phone is unaware of the presence of the phone
Objective:

Layer 2 Technologies -
Sub-Objective:

Configure and verify VLANs -
References:
Cisco > Home > Products and Services > Cisco Interfaces and Modules > Cisco Network Modules > Product Literature > Data Sheets > Cisco Catalyst 6500

Series Switches -
Cisco > Cisco IOS Interface and Hardware Component Command Reference > squelch through system jumbomtu > switchport voice vlan
by hjacquemin at July 11, 2019, 1:44 p.m.

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Bab500bab500
5 years, 7 months ago
Answer is B the switch connected to the phone provides the VLAN
upvoted 1 times
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hjacquemin
5 years, 11 months ago
The switch provide the VLAN through CDP (For Cisco Phone), or through the LLDP standard protocol
upvoted 4 times
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