Which two statements are true about the protocols that are used for transmitting voice traffic？（）A、RTP multiplexing is used to keep multiple phone conversations separateB、RTP provides end-to-end delivery services for voice traffic.C、UDP is used to ensure a reliable transmission from sender to receiver.D、RTP is used to provide resource reservation for the voice stream.E、UDP provides multiplexing of multiple phone conversations.
Which two statements are true about the protocols that are used for transmitting voice traffic？（）
- A、RTP multiplexing is used to keep multiple phone conversations separate
- B、RTP provides end-to-end delivery services for voice traffic.
- C、UDP is used to ensure a reliable transmission from sender to receiver.
- D、RTP is used to provide resource reservation for the voice stream.
- E、UDP provides multiplexing of multiple phone conversations.
相关考题：
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Which two statements are true about the Automatic Diagnostic Repository （ADR）？（） A、 The ADR base keeps all diagnostic information in binary formatB、 SQL*Plus provides the ADRI script， which can be used to work with ADRC、 The ADR can be used for problem diagnosis only when the database is openD、 The ADR can be disabled by settting the DIAGNOSTIC_DEST parameter to nullE、 The ADR can be used for problem diagnosis even when the database instance is downF、 The ADR base is shared across multiple instances
Which two statements are true about the Automatic Diagnostic Repository (ADR)?（） (Choose two.)A、The ADR base keeps all diagnostic information in binary formatB、SQL*Plus provides the ADRI script, which can be used to work with ADRC、The ADR can be used for problem diagnosis only when the database is openD、The ADR can be disabled by settting the DIAGNOSTIC_DEST parameter to nullE、The ADR can be used for problem diagnosis even when the database instance is downF、The ADR base is shared across multiple instances
多选题Which two statements are true about the role of split horizon？（）AIt is a function used by routing protocols to install routes into routing tableBIt is a function that prevents the advertising of routes over an interface that the router is usingto reach a routeCIts function is to help avoid routing loops.DIt is a redistribution technique used by routing protocols
单选题Refer to the exhibit. Which statement is true about a voice VLAN？（）A Physically the voice network and the data network are separate.B The voice traffic will normally be on a different IP subnet than will the data traffic.C End user intervention is necessary to place the phone into the proper VLAN.D The same security policy should be implemented for both voice and data traffic.E The data VLAN must be configured as the native VLAN.
多选题Which two statements are true about voice VLANs？（）AVoice VLANs are only used when connecting an IP phone and a host to distinct switch portsBAccess ports that are configured with voice VLANs will always trust the CoS that is received from IP phonesCAccess ports that are configured with voice VLANs may or may not override the CoS value that is received from an IP phoneDVoice VLANs are configured using the switchport voice vlan vlan-ID interface configuration commandEVoice VLANs provide a trunking interface between an IP phone and an access port on a switch to allow traffic from multiple devices that are connected to the portFEnabling Voice VLAN on a switch port will automatically configure the port to trust the incoming CoS markings
多选题VOIP has been implemented at the main office of the Company network. Which two statements are true about voice packets in a LAN？（）AVoice carrier stream utilizes Real-Time Transport Protocol (RTP) to carry the audio/media portion of the VoIP communication.BVoice traffic data flow involves large volumes of large packets.CBecause a packet loss involves a small amount of data, voice traffic is less affected by packet losses than traditional data traffic is.DVoice packets are encapsulated in TCP segments to allow for proper sequencing during delivery.EVoice packets are very sensitive to delay and jitter.
单选题Which statement is true about the comparison of voice traffic with video traffic？（）A Video conferencing traffic tends to be much more bursty in nature and is more prone to have an impact on other traffic flows.B Latency requirements are less stringent for video traffic than for voice traffic.C Video traffic is less sensitive to dropped packets than for voice traffic.D Video traffic requires the retransmission capabilities of TCP whereas voice uses UDP.E Voice traffic tends to be much more bursty in nature and is more prone to have an impact on other traffic flows.F Voice traffic requires the retransmission capabilities of TCP whereas video uses UDP.
多选题Which two statements are true about voice packets in a LAN？ （Choose two.） （）AVoice traffic data flow involves large volumes of large packets.BBecause a packet loss involves a small amount of data， voice traffic is less affected by packet losses than traditional data traffic is.CVoice carrier stream utilizes Real-Time Transport Protocol （RTP） to carry the audio/media portion of VoIP communication.DVoice packets are very sensitive to delay and jitter.EVoice packets are encapsulated in TCP segments to allow for proper sequencing during delivery.
多选题Which two statements are true about the protocols that are used for transmitting voice traffic？（）ARTP multiplexing is used to keep multiple phone conversations separateBRTP provides end-to-end delivery services for voice traffic.CUDP is used to ensure a reliable transmission from sender to receiver.DRTP is used to provide resource reservation for the voice stream.EUDP provides multiplexing of multiple phone conversations.
单选题Refer to the exhibit. Which statement is true about a voice VLAN？（）A Physically the voice network and the data network are separateB The voice traffic will normally be on a different IP subnet than will the data trafficC End user intervention is necessary to place the phone into the proper VLAND The same security policy should be implemented for both voice and data trafficE The data VLAN must be configured as the native VLAN
多选题Which two statements are true about the function of CAC？ （）ACAC provides guaranteed voice quality on a link.BCAC artificially limits the number of concurrent voice calls.CCAC is used to control the amount of bandwidth that is taken by a call on a link.DCAC prevents oversubscription of WAN resources that is caused by too much voice traffic.ECAC allows an unlimited number of voice calls while severely restricting， if necessary， other forms of traffic.FCAC solves voice congestion problems by using QoS to give priority to UDP traffic.
单选题Which two statements are true about the protocols that are used for transmitting voice traffic？（）ARTP multiplexing is used to keep multiple phone conversations separateBRTP provides end-to-end delivery services for voice trafficCUDP is used to ensure a reliable transmission from sender to receiverDRTP is used to provide resource reservation for the voice streamEUDP provides multiplexing