网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
单选题
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
参考答案
参考解析
解析：
暂无解析
更多 “单选题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 downlinkB cable with 256k uplink /256k downlinkC DSL with 128k uplink /768k downlinkD cable with 256k uplink /1.4M downlink” 相关考题
考题
When designing a converged network, which measures can be taken at the building access layer to help eliminate latency and ensure end－to－end quality of service can be maintained? ()
A. rate limit voice trafficB. configure spanning-tree for fast link convergenceC. isolate voice traffic on separate VLANsD. classify and mark traffic close to the source
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.
考题
Which benefit does digital subscriber line (DSL) systems for broadband access provide to the user?（）A、Dedicated lines for high security data transferB、Data and audio signals that share the same communications infrastructureC、Secure access to company extranetD、Simple solution for high-quality digital video using coaxial cable
考题
When is it appropriate to enable Link Fragmentation and Interleaving (LFI) on DSL connections for Teleworkers?（）A、uplink speed less than 768kbpsB、supporting Voice-over-IPC、using PPPoE encapsulationD、using PPPoA encapsulationE、uplink speed greater than 768kbps
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.
考题
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 platformsC、 Mobility and scalabilityD、 SecurityE、 High availability
考题
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 downlinkB、cable with 256k uplink /256k downlinkC、DSL with 128k uplink /768k downlinkD、cable with 256k uplink /1.4M downlink
考题
An important limitation of the Cisco Business Ready Teleworker solution is_____.（）A、IP phone extensions for teleworkers must be chosen carefully so not to duplicate campus phone extensions.B、More security exposure exists due to lack of support for Intrusion Detection System and URL filtering for teleworker originated traffic.C、Compressed RTP and IPSec are not compatible and result in no bandwidth savings.D、Broadband modems must support Quality of Service for adequate voice quality.
考题
What is a key characteristic of the Cisco Business Ready Teleworker solution which is different from traditional software-client based Teleworker solutions?（）A、all traffic is encrypted using IPSec and the Triple-DES algorithmB、full support for all Enterprise applications, including data, voice, and videoC、thousands of Teleworker VPN tunnels can be aggregated to a headquarters locationD、the VPN tunnel is an always on site-to-site VPN connectionE、portability for use while travelingF、used with broadband Cable/DSL subscriptions
考题
Your Service Provider does not support Link Fragmentation and Interleave, but upstream serialization delay on your broadband link is affecting voice quality. Which two mitigation strategies are viable?（）A、Upgrade your residential broadband service to at least 768kbps uplink.B、Switch your home router to use PPP encapsulation.C、Use the ip tcp adjust-mss interface command.D、Employ QoS techniques to drop large data packets.E、Use traffic shaping to interrupt large data packets.
考题
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 platformsC、Mobility and scalabilityD、SecurityE、High availability
考题
Which two statements are true about the configuration of voice VLANs？（）A、Static secure MAC addresses can be configured in conjunction with voice VLANs.B、PortFast is automatically enabled when voice VLANs are configured.C、PortFast must be manually configured when voice VLANs are configured.D、Voice VLANs are typically configured on uplink ports.E、Voice VLANs are typically configured on access ports.
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
考题
Which statement is true about voice VLANs？ （）A、When the voice VLAN feature is enabled， all untagged voice and data traffic is sent through the voice VLAN.B、The voice VLAN feature is enabled by default.C、The IP phone overrides the priority of all incoming data traffic （tagged and untagged） and sets the CoS value to 0.D、The default CoS value is 1 for incoming voice and data traffic.
考题
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、CBWFQB、LLQC、traffic shapingD、WRED
考题
When designing a converged network， which measures can be taken at the building access layerto help eliminate latency and ensure end-to-end quality of service can be maintained？（）A、 rate limit voice trafficB、 configure spanning-tree for fast link convergenceC、 isolate voice traffic on separate VLANsD、 classify and mark traffic close to the source
考题
Voice quality is bad due to high delay and jitter on a link. Which two actions will improve the quality of voice calls？（）A、Increase the queue size of the voice class.B、Guarantee bandwidth during congestion to the voice class with a bandwidth command.C、Increase the tx-ring of the egress interface.D、Implement LLQ for the voice class.E、Decrease the rx-ring of the egress interface.F、Decrease the queue size of the voice class.
考题
Which service does the ERX Edge Router support with a virtual router?（ ）A、voice over IPB、wholesale servicesC、IP quality of serviceD、SNMP management
考题
多选题Which two statements are true about the configuration of voice VLANs？（）AStatic secure MAC addresses can be configured in conjunction with voice VLANs.BPortFast is automatically enabled when voice VLANs are configured.CPortFast must be manually configured when voice VLANs are configured.DVoice VLANs are typically configured on uplink ports.EVoice VLANs are typically configured on access ports.
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
考题
多选题Voice quality is bad due to high delay and jitter on a link. Which two actions will improve the quality of voice calls？（）AIncrease the queue size of the voice class.BGuarantee bandwidth during congestion to the voice class with a bandwidth command.CIncrease the tx-ring of the egress interface.DImplement LLQ for the voice class.EDecrease the rx-ring of the egress interface.FDecrease the queue size of the voice class.
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.
考题
多选题Refer to the exhibit. A customer indicates their teleworkers plan to use IP phones in their home offices. The IT department has surveyed the planned teleworkers, resulting in the user groupings shown in the exhibit. To provide the highest voice quality, the best recommendations to this customer are（）.ADeploy all three groups with a QoS service policy, choosing the parameters for Traffic Shaping based on the average uplink speed across the three groups.BTeleworkers in Groups A and B should inquire with their DSL providers for subscriptions with higher uplink bandwidths.CTeleworkers in Group C should change their subscriptions to DSL for deployment consistency.DTeleworkers in Group A should upgrade their subscription to obtain static IP addressesETeleworkers in Group A should inquire with their DSL providers for subscriptions with higher downlink bandwidths.
考题
单选题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 downlinkB
cable with 256k uplink /256k downlinkC
DSL with 128k uplink /768k downlinkD
cable with 256k uplink /1.4M downlink
考题
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.
考题
单选题Which benefit does digital subscriber line (DSL) systems for broadband access provide to the user?（）A
Dedicated lines for high security data transferB
Data and audio signals that share the same communications infrastructureC
Secure access to company extranetD
Simple solution for high-quality digital video using coaxial cable
考题
单选题An important limitation of the Cisco Business Ready Teleworker solution is_____.（）A
IP phone extensions for teleworkers must be chosen carefully so not to duplicate campus phone extensions.B
More security exposure exists due to lack of support for Intrusion Detection System and URL filtering for teleworker originated traffic.C
Compressed RTP and IPSec are not compatible and result in no bandwidth savings.D
Broadband modems must support Quality of Service for adequate voice quality.
考题
单选题Which statement is true about voice VLANs？ （）A
When the voice VLAN feature is enabled， all untagged voice and data traffic is sent through the voice VLAN.B
The voice VLAN feature is enabled by default.C
The IP phone overrides the priority of all incoming data traffic （tagged and untagged） and sets the CoS value to 0.D
The default CoS value is 1 for incoming voice and data traffic.
热门标签
最新试卷