If voice and data traffic will be sent and received via a WAN links， what must be configured to provide a certain amount of dedicated bandwidth and to prioritize the voice traffic over other types of network traffic？（）

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• The Company is rolling out Cisco’s Architecture for Voice， Video and Integrated Data （AVVID）.Which of the following choices represent the fundamental intelligent network services in Cisco’sAVVID？（）

  A . Quality of Service （QoS） B . Intelligent platforms C . Mobility and scalability D . Security E . High availability

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• Which three statements are true about the data traffic characteristics of voice traffic？ （）

  A . latency must be kept below 150 ms B . latency is not a concern as long as jitter is kept below 30 ms C . voice packets do not require a specific type of queuing D . voice packets are rather small E . voice packets require TCP for rapid retransmission of dropped packets F . voice packets require a fairly constant bandwidth reserved for voice control traffic as well as forthe voice payload

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• 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

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• Interface congestion is causing drops in voice packets and TCP packets. The drops result in jerky speech quality and slower FTP traffic flows. Which two technologies would proactively address the TCP transfer rate and the voice problems？ （）

  A .  CBWFQ B .  LLQ C .  traffic shaping D .  WRED

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• Overlay Transport Virtualization （OTV） join interface is used to source the OTV encapsulated traffic and send it to the Layer 3 domain of the data center network. Which statements are true about OTV join interface？ （）

  A .  Join interface is a Layer 3 entity， and with the Cisco NX-OS release 6.0， it can only be defined as a physical interface， physical subinterface， Layer 3 port channel， or Layer 3 port channel subinterface. B .  A single join interface can be defined and associated with a given OTV overlay. C .  Multiple overlays can also share the same join interface. D .  Join interface can be a loopback interface. E .  The join interface is a Layer 3 entity that can be defined as a physical interface but not as a logical one.

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• If you needed to transport traffic coming from multiple VLANs （connected between switches）， and  your CTO was insistent on using an open standard，which protocol would you use？（）

  A . 802.11B B . spanning-tree C . 802.1Q D . ISL E . VTP F . Q.921

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• Due to limitations affecting voice quality, which of the broadband speeds shown is preferred in order to achieve highest voice quality on a converged data and voice teleworker connection?（）

  A . DSL with 128k uplink /128k downlink B . cable with 256k uplink /256k downlink C . DSL with 128k uplink /768k downlink D . cable with 256k uplink /1.4M downlink

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• What are three features of voice traffic on a network？（）

  A . bursty B . constant C . bandwidth intensive D . small packet sizes E . time-sensitive F . retransmittable

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• 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

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• Which two statements are true about network voice traffic？ （Choose two.）（）

  A .  Voice traffic is affected more by link speed than FTP traffic is. B .  Voice traffic is affected more by packet delays than FTP traffic is. C .  Voice streams involve larger packet sizes than most TCP network traffic involves. D .  Voice traffic is more sensitive to packet loss than TCP network traffic is. E .  Voice traffic requires QOS mechanisms only in heavily loaded network segments.

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• Refer to the exhibit. Based upon the information that is given， how will voice traffic from the phone  and data traffic from the PC be handled by SW_1？ （） https://assets.asklib.com/images/image2/2018073014240858976.jpg

  A . The switch port will perform marking for the ingress voice and data traffic by using the  defaultCoS value at the switch port. B . The switch port will trust theCoS value of the ingress voice and data traffic that comes into the  switch port. C . The switch port will trust theCoS value of the ingress voice traffic. Data traffic will be marked at  the switch port with the default CoS value. D . The switch port will trust theCoS value of the ingress data traffic. Voice traffic will be marked at  the switch port with the default CoS value.

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• Which of the following specification will allow you to： associate VLAN groups to STP instances so  you can provide multiple forwarding paths for data traffic and enable load balancing？ （）

  A .  IEEE 802.1d （STP） B .  IEEE 802.1s （MST） C .  IEEE 802.1Q （CST） D .  IEEE 802.1w （RSTP）

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• You need to ensure that you can recover system configuration and data if your computer hard disk fails.  What should you do？ （）

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• You are a network administrator of a large investor relations company that uses a switchednetwork to carry both data and IP telephony services. Why should you carry voice traffic on aseparate VLAN？（）

  A . IP phones require inline power and must be in separate VLAN to receive inline power B . IP telephony applications require prioritization over other traffic as they are more delaysensitive C . IP phones can only receive IP addresses through DHCP if they are in separate VLAN D . The CDP frames from the IP phone can only be recognized by the switch if the phone is in anauxiliary vla

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• Which statement is true about the data traffic between the access point named TKAP1 and  controller TKC1？（）

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• Refer to the exhibit. Which statement is true when voice traffic is forwarded on the same VLAN  used by the data traffic？ （） https://assets.asklib.com/images/image2/2018073014372698425.jpg

  A . The voice traffic cannot be forwarded to the distribution layer. B . The voice traffic cannot use 802.1p priority tagging. C . Port security cannot be enabled on the switch that is attached to the IP phone. D . Quality of service cannot be applied for the voice traffic.

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• 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

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• The Company is rolling out Cisco’s Architecture for Voice， Video and Integrated Data （AVVID）.   Which of the following choices represent the fundamental intelligent network services in Cisco’s  AVVID？ （）

  A .  Quality of Service （QoS） B .  Intelligent platforms C .  Mobility and scalability D .  Security E .  High availability

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• Interface congestion is causing drops in voice packets and TCP packets. The drops result in jerky speech quality and slower FTP traffic flows. Which two technologies would proactively address the TCP transfer rate and the voice problems？（）

  A . CBWFQ B . LLQ C . traffic shaping D . WRED

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