[单选]
An IP phone connects a user to a switch as shown below：

Based on the diagram shown above， which statement is true about the voice traffic coming to theswitch access port that is connected to the IP phone？（）

A . A PC connected to a switch port via an IP phone is unaware of the presence of the phone
B . The traffic on the voice VLAN must be tagged with 802.1p encapsulation in order to coexist onthe same LAN segment with a PC
C . To improve the quality of the voice traffic， no other devices should be attached to the IP phone
D . The voice VLAN must be configured as a native VLAN on the switch
E . A PC connected to a switch port via an IP phone must support a trunking encapsulatio

You work as an application developer at Certkiller .com. You are required to dynamically load assemblies into a custom child application domain. You need to ensure that the assemblies loaded into the child application domain have the same permissions as the applications that are accessed across the local intranet.What should you do？（） A。 B。 C。 D。婴儿被动操必须在柔软的地方进行。属于市场机制的基本构成要素的是（）。供求机制。社会保障机制。分配机制。宏观调控机制。动物性蛋白质饲料的营养特点：（相对植物性）？常用的止血方法有几种？

An IP phone connects a user to a switch as shown below：

Based on the diagram shown above， which statement is true about the voice traffic coming to theswitch access port that is connected to the IP phone？（）

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[单选] An IP phone connects a user to a switch as shown below： Based on the diagram shown above， which statement is true about the voice traffic coming to theswitch access port that is connected to the IP phone？（）

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[单选]
An IP phone connects a user to a switch as shown below：

Based on the diagram shown above， which statement is true about the voice traffic coming to theswitch access port that is connected to the IP phone？（）