Which three statements are true about the voice VLAN feature on a Catalyst 2950 switch？ （Choose three.）（） The CoS value is trusted for 802.1p or 802.1q tagged traffic.。 The voice VLAN feature is disabled by default.。 The IP phone accepts the priority of all tagged and untagged traffic and sets the CoS value to 4.。 When the voice VLAN feature is enabled， all untagged traffic is sent according to the default CoS priority of the port.。 PortFast is automatically disabled when a voice VLAN is configured.。 The default CoS value for incoming traffic is set to 0.。
地壳表层
Which two tasks does the Dynamic Host Configuration Protocol perform?（） Set the IP gateway to be used by the network.。 Perform host discovery used DHCPDISCOVER message.。 Configure IP address parameters from DHCP server to a host.。 Provide an easy management of layer 3 devices.。 Monitor IP performance using the DHCP server.。 Assign and renew IP address from the default pool.。
财务预算的编制，按照预算指标与业务量的变动关系，可分为（） 增量预算。 滚动预算。 固定预算。 弹性预算。
肾综合征出血热各期的治疗原则？
Where are Cisco UCS vNICs created？（）
