单选题What ensures that voice packets are given priority throughout the network so that conversations arrive intact?（）A QoSB CentrexC Packet encryptionD Intelligent call routing

考题 Router VE1 has just received a packet and needs to route it. What two actions must this router take in order to route incoming packets? (Choose two)A. Inspect the routing table to select the best path to the destination network addresses.B. Validate sources of routing information.C. Inspect the ARP table to verify a legitimate source MAC address for each packet.D. Identify the destination network address of each packet.E. Verify the receipt of routed packets by the next hop router.F. Identify the source network address of each packet.

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考题 What ensures that voice packets are given priority throughout the network so that conversations arrive intact?() A.CentrexB.Packet encryptionC.Intelligent call routingD.QoS

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考题 What does a router do if it has no EIGRP feasible successor route to a destination network and the successor route to that destination network is inactive status?() A. It routes all traffic that is addresses to the destination network to the interface indicates in the routing table.B. It sends a copy of its neighbor table to all adjacent routers.C. It sends a multicast query packet to all adjacent neighbors requesting available routing paths to the destination network.D. It broadcasts Hello packets to all routers in the network to re-establish neighbor adjacencies.

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考题 Choose the false statement concerning the use of CiscoWorks Internetwork Performance Monitor (IPM) in a Teleworker deployment.（）A、IPM should not be run on a production network. B、IPM helps verify if a Service Provider is meeting the Service Level Agreement. C、IPM contains a database that can store data on latency, jitter, and drops of voice packets over a period of weeks or months. D、The QoS service policy should contain an allocation of sufficient bandwidth in the priority queue (LLQ) for both the SAA probe simulating a voice call and the voice call. If not, voice quality will suffer.

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考题 Why is QoS important in a converged network?（）A、Because voice data packets must follow a single dedicated path through the networkB、Because voice data packets should arrive quickly and sequentially, and with no lost dataC、Because lost voice-data packets must be retransmittedD、Because data does not need to arrive intact, so data transfer rates can be variable

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考题 Refer to the exhibit. A router has a 256 kbps Frame Relay circuit connected to interface serial 0/0. As a large FTP packet is being placed into the hardware transmit queue of interface serial 0/0， a voice packet is placed into the priority queue of that interface. How， and in what order， wi the packets be transmitted？（）A、the voice packet will be transmitted first， followed by the FTP packet in its entiretyB、the voice packet will be transmitted first， followed by the fragmented FTP packetC、the FTP packet will be fragmented and the voice packet will be interleavedD、the FTP packet will be transmitted first in its entirety， follow by the voice packet

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考题 What ensures that voice packets are given priority throughout the network so that conversations arrive intact?（）A、CentrexB、Packet encryptionC、Intelligent call routingD、QoS

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考题 What is a benefit of Internet protocol (IP) telephony?（）A、Synchronizes password exchanges for call setupB、Eliminates the need for physical cabling in a TCP/IP networkC、Enables two-way voice transmission over a packet-switched TCP/IP networkD、Creates an encrypted tunnel for voice through a Transmission Control Protocol (TCP)/IP network

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考题 What are three features of voice traffic on a network？（）A、burstyB、constantC、bandwidth intensiveD、small packet sizesE、time-sensitiveF、retransmittable

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考题 Which two statements are true about Voice over IP （VoIP） packet delivery in a digital infrastructure？（）A、 Packets can arrive out of order.B、 Packets must take the same path to the destination.C、 Once packets are received at the destination router， the router performs sampling to ensure the quality of the voice traffic.D、 Packets can experience varying delays across the network.E、 Packets containing voice samples are sequentially numbered by default， allowing for reordering upon arrival at the terminal router along the path.

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考题 Which statement best describes the application of link fragmentation and interleaving （LFI）？（）A、It compresses the Layer 2 payload and marks the packet as a high priority to be transmitted firstB、It fragments larger packets and allows VoIP packets to be transmitted in between them.C、It stops the transmission of large packets when priority packets arrive.D、It sends high priority packets in between normal traffic packets.

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考题 VOIP has been implemented at the main office of the Company network. Which two statements are true about voice packets in a LAN？（）A、 Voice carrier stream utilizes Real-Time Transport Protocol (RTP) to carry the audio/media portion of the VoIP communication. B、 Voice traffic data flow involves large volumes of large packets. C、 Because a packet loss involves a small amount of data, voice traffic is less affected by packet losses than traditional data traffic is. D、 Voice packets are encapsulated in TCP segments to allow for proper sequencing during delivery. E、 Voice packets are very sensitive to delay and jitter.

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考题 Why is QoS important in a converged network?（）A、Because data does not need to arrive intact, so data transfer rates can be variableB、Because lost voice-data packets must be retransmittedC、Because voice data packets should arrive quickly and sequentially, and with no lost dataD、Because voice data packets must follow a single dedicated path through the network

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考题 What are two major sources of delay that can be managed by QoS in voice-enabled networks？（）A、propagation delayB、voice packet serialization delayC、congested egress queuesD、header overheadE、packets dropped because of CRC errors

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考题 What ensures that voice packets are given priority throughout the network so that conversations arrive intact?（）A、QoSB、CentrexC、Packet encryptionD、Intelligent call routing

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考题单选题What is a benefit of Internet protocol (IP) telephony?（）A Synchronizes password exchanges for call setupB Eliminates the need for physical cabling in a TCP/IP networkC Enables two-way voice transmission over a packet-switched TCP/IP networkD Creates an encrypted tunnel for voice through a Transmission Control Protocol (TCP)/IP network

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考题单选题Why is QoS important in a converged network?（）A Because data does not need to arrive intact, so data transfer rates can be variableB Because lost voice-data packets must be retransmittedC Because voice data packets should arrive quickly and sequentially, and with no lost dataD Because voice data packets must follow a single dedicated path through the network

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考题多选题Which two statements are true about Voice over IP （VoIP） packet delivery in a digital infrastructure？（）APackets can arrive out of order.BPackets must take the same path to the destination.COnce packets are received at the destination router， the router performs sampling to ensure the quality of the voice traffic.DPackets can experience varying delays across the network.EPackets containing voice samples are sequentially numbered by default， allowing for reordering upon arrival at the terminal router along the path.

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考题单选题Refer to the exhibit. A router has a 256 kbps Frame Relay circuit connected to interface serial 0/0. As a large FTP packet is being placed into the hardware transmit queue of interface serial 0/0， a voice packet is placed into the priority queue of that interface. How， and in what order， wi the packets be transmitted？（）A the voice packet will be transmitted first， followed by the FTP packet in its entiretyB the voice packet will be transmitted first， followed by the fragmented FTP packetC the FTP packet will be fragmented and the voice packet will be interleavedD the FTP packet will be transmitted first in its entirety， follow by the voice packet

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考题单选题What ensures that voice packets are given priority throughout the network so that conversations arrive intact?（）A CentrexB Packet encryptionC Intelligent call routingD QoS

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考题多选题What are three features of voice traffic on a network？（）AburstyBconstantCbandwidth intensiveDsmall packet sizesEtime-sensitiveFretransmittable

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考题单选题What does a router do if it has no EIGRP feasible successor route to a destination network and the successor route to that destination network is inactive status?（）A It routes all traffic that is addresses to the destination network to the interface indicates in the routing table.B It sends a copy of its neighbor table to all adjacent routers.C It sends a multicast query packet to all adjacent neighbors requesting available routing paths to the destination network.D It broadcasts Hello packets to all routers in the network to re-establish neighbor adjacencies.

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考题单选题Why is QoS important in a converged network?（）A Because voice data packets must follow a single dedicated path through the networkB Because voice data packets should arrive quickly and sequentially, and with no lost dataC Because lost voice-data packets must be retransmittedD Because data does not need to arrive intact, so data transfer rates can be variable

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考题单选题Choose the false statement concerning the use of CiscoWorks Internetwork Performance Monitor (IPM) in a Teleworker deployment.（）A IPM should not be run on a production network. B IPM helps verify if a Service Provider is meeting the Service Level Agreement. C IPM contains a database that can store data on latency, jitter, and drops of voice packets over a period of weeks or months. D The QoS service policy should contain an allocation of sufficient bandwidth in the priority queue (LLQ) for both the SAA probe simulating a voice call and the voice call. If not, voice quality will suffer.

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考题单选题Which statement best describes the application of link fragmentation and interleaving （LFI）？（）A It compresses the Layer 2 payload and marks the packet as a high priority to be transmitted firstB It fragments larger packets and allows VoIP packets to be transmitted in between them.C It stops the transmission of large packets when priority packets arrive.D It sends high priority packets in between normal traffic packets.

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考题单选题What is the goal of QoS in a network？（）A prevent packets from being droppedB increase available bandwidthC reduce hardware errorsD provide predictable network serviceE eliminate propagation delayF eliminate jitter and packet loss

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考题单选题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？（）A IPSec VPNB QoS mechanismC FirewallD NATE EIGRP routing protocolF Static routing

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