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On a WLAN controller，what is the default roaming bandwidth percentage reserved for voice clients？（）
A . 12 percent
B . 6 percent
C . 18 percent
D . 24 percent
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（）dBm is the recommended radius of a cell for a voice-ready wireless network.
A . 4
B . 6
C . -67
D . 10
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What is the minimum recommended access point overlap for voice roaming？（）
A . less than 10 percent
B . 10 to 15 percent
C . 15 to 20 percent
D . 25 to 30 percent
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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.
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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.
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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.
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Which two settings must be configured in order to use the GUI to configure Call Admission Control with voice applications?（）
A . QoS must be set to Platinum
B . WMM must be enabled
C . QoS must be set to Gold
D . TSPEC must be disabled
E . Cisco Compatible Extensions must be disabled
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（）dBm is the recommended radius of a cell for a voice-ready wireless network.
A . 4
B . 6
C . 7
D . 10
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What are two design considerations for a WLAN to support voice?（）
A . Packet loss is less than one percent.
B . Signal strength at cell edge is approximately -67 dBm.
C . End-to-end delay is less than 200 ms.
D . Cell overlap between APs is 50 percent.
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Voice activity detection （VAD） suppresses the transmission of silence patterns. On average， and assuming that a link carries at least 24 calls，what percentage of total bandwidth could VAD save？（）
A . 5
B . 15
C . 25
D . 35
E . 45
F . 55
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What voice endpoint is recommended for use with the Cisco Unified Communications 500 Series for small businesses？（）
A . IP7961
B . IP8961
C . SPA504
D . SPA9000
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For acceptable voice calls， the packet error rate should be less than（）%
A . 0.01
B . 0.1
C . 1
D . 2.5
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Which two settings must be configured in order to use the GUI to configure Call Admission Controlwith voice applications？ （）
A . QoS must be set to Platinum
B . WMM must be enabled
C . QoS must be set to Gold
D . TSPEC must be disabled
E . Cisco Compatible Extensions must be disabled
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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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What is the minimum recommended uplink/downlink speed to support a single encrypted IP voice Teleworker call?（）
A . 256kbps / 1024kbps
B . 256kbps / 1544kbps
C . 160kbps / 768kbps
D . 384kbps / 384kbps
E . 128kbps / 512k
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A library called contosobuisness.dll has been created and u need to accept it in a page.. all options had the
A . <%assembly TargetName="contosobuisness" %>
B . <%assembly ID="contosobuisness" %>
C . <%@ Assembly Name="contosobuisness" %>
D . <%assembly virtualpath="contosobuisness" %>
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What can be used to maintain the voice quality on a link by limiting the number of calls that can be active at any given time？（）
A . Call Management Link Agent
B . Traffic policing
C . Call Admission Control
D . QoS Link Congestion Management
E . Oversubscription Link Detectio
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Block format is the only acceptable address format for envelope addressing.
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King John was forced to accept the historic Magna Carta,and in English it is called ().
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词根voc/vok的语义是to call、voice，convoke的词义有可能是（ ）。
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L/C called for freight to be paid by the beneficiary in terms of a CIF contract, Bills of lading had a stamp on them showing the words "freight to be prepaid". Negotiating Bank accepted the stamp as constituting evidencing payment of freight.
They are:
(1)( ) Correct in accepting the bill of lading.
(2)( ) Incorrect in accepting the bill of lading.
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“Smart building” contains a network for voice, data, environment control and closed-c
是
否
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A great difference between American social customs and those of other countries is the way in which names are used. Americans have little concern for "rank", especially socially. (76) Most Americans do not want to be treated in any especially respectful way because of their age or social rank; it makes them feel uncomfortable. Many Americans even find the terms "Mr. ", "Mrs." or "Miss." too formal. People of all ages may prefer to be called by their first names. "Don't call me Mrs. Smith, just call me Sally." Using only first names usually indicates friendliness and acceptance. However, if you do not feel comfortable using only first names, it is quite acceptable to be more formal. Just smile and say that after a while you will use first names but you are accustomed to being more formal when you first meet someone.
Very often, introductions are made using both first and last names: "Mary Smith, this is John Jones." In this situation you are free to decide whether to call the lady "Mary" or "Miss Smith". Sometimes both of you will begin a conversation using last names, and after a while one or both of you may begin using first names instead. You have a choice: if you don't want to use first names so quickly, no one will think it impolite if you continue according to your own custom.
In the first paragraph the author tells us that ______.
A．Americans do not talk about rank, especially socially
B．Americans feel uncomfortable when talking about rank
C．Americans take interests in social customs
D．Americans don't care much about social rank
