VoIP bearer traffic is typically marked to which DSCP value？（）

相似题目

• Refer to the exhibit. Voice traffic is marked "precedence 5." How much bandwidth is allocated for voice traffic during periods of congestion？（）https://assets.asklib.com/images/image2/2018072317283226919.jpg

  A . a minimum of 48 kb/s B . a maximum of 48 kb/s C . a minimum of 48% of the available bandwidth D . a maximum of 48% of the available bandwidth

  查看最佳答案

• Which three are characteristics of voice traffic in the Company VOIP campus network？（）

  A . TCP retransmits B . UDP priority C . Bursty D . Delay sensitive E . Greedy F . Drop sensitive

  查看最佳答案

• There is MPLS VPN traffic traversing through a TE intermediate router. What is the MPLS packet labelstack sequence （from outer to inner） for the VPN traffic on this router？（）

  A . TE label， IGP label， VPN label B . IGP label， TE label， VPN label C . TE label， VPN label， IGP label D . VPN label， IGP label， TE label E . IGP label， VPN label， TE label

  查看最佳答案

• Which Cisco IOS traffic-shaping mechanism statement is true？ （）

  A . class-based policing is configured using the Modular QoS command-line （MQC） B . only the Frame Relay traffic-shaping （FRTS） mechanism can interact with a Frame Relay network， adapting to indications of Layer2 congestion in the WAN links C . Distributed Traffic Shaping （DTS） is configured with the police command under the policy map configuration D . both Frame Relay traffic shaping （FRTS） and virtual IP （VIP）-based Distributed Traffic Shaping （DTS） have the ability to mark traffic

  查看最佳答案

• Which statement is NOT a key QoS recommended requirement for voice bearer traffic?（）

  A . Voice traffic should be marked to DSCP EF per the QoS baseline and RFC3246. B . Voice traffic loss should be no more than 3%. C . One-way latency （mouth-to-ear） should be less than 150 msec. D . Average one way jitter should be targeted to less than 30 msec. E . 21-320 Kbps of guaranteed priority bandwidth is required per call depending on sample rate，codec，and layer 2 overhead.

  查看最佳答案

• 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 . video 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

  查看最佳答案

• Which traffic descriptor is used for marking？ （）

  A . weighted RED （WRED） orange or green labels B . modular QoS CLI （MQC） application layer tags C . Deficit Round Robin （DRR） precedence bits D . header compression tags E . MPLS experimental bits F . FIFO Layer 2 descriptor labels （L2DL）

  查看最佳答案

• Refer to the exhibit. Which of these is applied to the Bearer class？（）https://assets.asklib.com/images/image2/201807231730019984.jpg

  A . WRED B . traffic shaping C . packet marking D . packet classification E . FIFO queuing within the cla

  查看最佳答案

• A traffic separation zone is that part of a traffic separation scheme which（）.

  A . is located between the scheme and the nearest land B . separates traffic proceeding in one direction from traffic proceeding in the opposite direction C . is designated as an anchorage area D . contains all the traffic moving in the same directio

  查看最佳答案

• Jitter is causing problems with the VOIP application in the network. What causes network jitter？（）

  A . Variable queue delays B . Packet drops C . Transmitting too many small packets D . Compressio

  查看最佳答案

• Which statement is true about the Call Admission Control （CAC） feature in VoIP networks？（）

  A .  CAC is used to allocate enough bandwidth for the number of calls that are allowed on the VoIP network. B .  CAC is used to protect the quality of the voice calls by preventing call establishment if enough resources are not available on the network. C .  CAC provides queuing mechanisms for voice calls if the packets exceed the configured or budgeted rate. D .  In a VoIP network the CAC can be replaced with the LLQ QoS mechanism if it has been properly implemented.

  查看最佳答案

• Authentication for user data traffic is important, but so is authentication for IP voice traffic. The Cisco 830 802.1 feature provides an easier method for allowing IP voice traffic through the VPN, because it（）.

  A . requires access lists to identify the voice traffic  B . can allow traffic from a device without 802.1X authentication, by MAC address C . can allow traffic from Cisco IP phones by listening to their CDP advertisements D . allows all packets marked with a ToS of 5 to bypass authentication E . allows all IP voice packets to bypass authentication via stateful inspectio

  查看最佳答案

• Which statement is true about the distributed call control in a VoIP network？（）

  A . the VoIP endpoints have the intelligence to set up and control calls B . Call setup and control functionality is centralized in one call agent or cluster C . Call setup and control resides in call agents that are distributed throughout the network D . Each VoIP device has separate call control， voice packetization， and transport mechanism

  查看最佳答案

• Is it clear（）traffic lane?

  A . my entering B . for my entering C . for me to enter D . I am entering

  查看最佳答案

• Which Modular QoS CLI （MQC） based output queuing method is designed to support multiple trafficclasses including VoIP traffic， mission-critical traffic， interactive traffic， and default class traffic？（）

  A . CBWFQ B . CB-WRED C . LLQ D . Custom Queueing E . WRR Queueing

  查看最佳答案

• 38. A traffic separation zone is that part of a traffic separation scheme which ______

  查看最佳答案

• A traffic separation zone is that part of a traffic separation scheme which ______.

  查看最佳答案

• A banker’s acceptance is an order to pay a specified amount of money to the bearer on a given date. Banker’s acceptances have been used since the twelfth century.

  查看最佳答案

• If a check is to the order of a person in whose favor the check is drawn it is called bearer check.

  查看最佳答案

• It is the ________ who issues the check to his bank, ordering the bank to pay to the seller or the bearer of the check.

  查看最佳答案

• TYP命令可显示文件内容。()此题为判断题(对，错)。

  是 否

  查看最佳答案

• Becareful! There is ______ traffic （）.

  A．many B．little C．less D．a lot of

  查看最佳答案