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单选题
What is the payload size of a wireless IP phone in a call using G.711 codec?（）
A
20 bytes
B
60 bytes
C
120 bytes
D
160 bytes
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You are troubleshooting a problem with a cisco 7920 wireless ip phone that is causing the phone to drop calls. the problem appears to be a roaming bandwidth issuE. in order to verify what kind of issue it is， you decide to increase the bandwidth reserved for roaming on the wlan controller to the maximum. What level do you set the bandwidth to？（）A、25 percentB、15 percentC、5 percentD、35 percent
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Which statement describes the call behavior of the Cisco Unified Wireless IP Phone 7921G when it roams from 802.11b to 802.11a?（）A、The phone does a directed call hangup on 802.11b，then does an auto-redial on 802.11a，creating a new call.B、The phone does a directed call hangup on 802.11b， then the user does a redial on 802.11a，creating a new call.C、The phone does a disassociation on 802.11b and an association on 802.11a，and call remains up if the subnet has not changed.D、The phone does not roam from 802.11b to 802.11a when on an active call.E、The phone must switch network profiles to roam from 802.11b to 802.11a.
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What is the Cisco recommended setting for the Cisco Unified Wireless Network WLC Voice Call Admission Control Max RF Bandwidth to support the Cisco Unified Wireless IP Phone 7921G?（）A、nominally 30 percent to best align with Cisco Unified Communications System recommendationsB、100 percent to ensure that the VoWLAN calls can use all the available bandwidth, if neededC、system default of 75 percentD、40 to 60 percentE、voice CAC should be left disabled unless wired QoS is configured
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You are troubleshooting a one-way call problem with a cisco 7920 wireless ip phone on a standalone wlan. What may have caused this problem？（）A、the minimum data rate is not set to 11 mbps.B、publicly secure packet forwarding is enabled.C、the access point is set to the least congested channel.D、an address resolution protocol has been disabled.
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Which keypad sequence will reset the Cisco Unified Wireless IP Phone 7921 to factory default?（）A、***B、**#C、**1D、**2
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What will improve the battery life of a Cisco Unified Wireless IP Phone 7921G?（）A、configuring phone to auto select networkB、configuring beacon period to 80 msC、configuring DTIM period to 2D、enabling RRM
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What call performance statistics are reported on the Cisco Wireless IP Phone 7921 user interface?（）A、minimum jitterB、maximum jitterC、upstream standard packet deviationD、average MOS valueE、average conceal rate
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You are troubleshooting a problem with a Cisco 7920 wireless IP phone on a standalone WLAN.The phone rings but， when you answer， the call is dropped. What may cause this problem？（）A、The minimum data rate is not set to 11 Mbps.B、An address resolution protocol is enabled.C、Publicly Secure Packet forwarding is enabled.D、The access point is set to the least congested channel.
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You are troubleshooting a problem with a cisco 7920 wireless ip phone on a standalone wlan. the phone rings but， when you Answer ，the call is dropped. What may have caused this problem？（）A、publicly secure packet forwarding is enabled.B、the minimum data rate is not set to 11 mbps.C、an address resolution protocol is enabled.D、the access point is set to the least congested channel.
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You are troubleshooting a problem with a Cisco 7920 wireless IP phone on a standalone WLAN.The phone rings but， when you answer， the call is dropped. What may have caused this problem？（）A、Publicly Secure Packet forwarding is enabled.B、The minimum data rate is not set to 11 Mbps.C、An address resolution protocol is enabled.D、The access point is set to the least congested channel.
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What two situations prevent the supervisor from silently monitoring the phone conversation of an agent in IPCC Express Enhanced?（）A、The agent is logged in and is on the phone. B、The agent is logged in but is not on the phone. C、The supervisor is a participant in a phone call. D、The supervisor is not a participant in a phone call. E、The supervisor has barged in.
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What is the payload size of a wireless IP phone in a call using G.711 codec?（）A、20 bytesB、60 bytesC、120 bytesD、160 bytes
考题
单选题You are troubleshooting a one-way call problem with a Cisco 7920 wireless IP phone on a standalone WLAN. What may cause this problem？（）A
The minimum data rate is not set to 11 Mbps.B
An address resolution protocol has been disabledC
Publicly Secure Packet forwarding is enabledD
The access point is set to the least congested channel.
考题
多选题What two situations prevent the supervisor from silently monitoring the phone conversation of an agent in IPCC Express Enhanced?（）AThe agent is logged in and is on the phone.BThe agent is logged in but is not on the phone.CThe supervisor is a participant in a phone call.DThe supervisor is not a participant in a phone call.EThe supervisor has barged in.
考题
单选题Which statement is true about a distributed call control environment and the processing of dialed digits from an IP phone？（）A
The router that is directly connected to the IP phone will look up the called number in its call routing table.B
The router that is directly connected to the IP phone will inform its call agent when a service request is detected.C
When the IP phone is picked up，the IP phone initiates the service request.D
The directly connected router passes the collected digits to its call agent，and the call agent looks up in its call-routing table the called number.
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单选题What does a Cisco Unified Wireless IP Phone 7921G deployment require（）？A
more access points than a data networkB
fewer access points than a data networkC
less SNR than a data networkD
specific relative access point placement
考题
单选题What is the recommended Cisco DSCP value for a switch or router passing Cisco Unified Wireless IP Phone 7921G RTP packets?（）A
CS3B
CS1C
EFD
5E
6
考题
单选题You are troubleshooting a problem with a cisco 7920 wireless ip phone that is causing the phone to drop calls. the problem appears to be roaming bandwidth issuE. in order to verify what kind of issue it is， you decide to increase the bandwidth reserve for roaming on the wlan controller to maximum. What level do you set the bandwidth to？（）A
5 percentB
15 percentC
25 percentD
35 percent
考题
单选题You are troubleshooting a problem with a Cisco 7920 wireless IP phone on a standalone WLAN.The phone rings but， when you answer， the call is dropped. What may cause this problem？（）A
The minimum data rate is not set to 11 Mbps.B
An address resolution protocol is enabled.C
Publicly Secure Packet forwarding is enabled.D
The access point is set to the least congested channel.
考题
单选题You are troubleshooting a problem with a Cisco 7920 wireless IP phone on a standalone WLAN. The phonerings but， when you answer， the call is dropped. What may have caused this problem？（）A
The minimum data rate is not set to 11 Mbps.B
An address resolution protocol is enabled.C
Publicly Secure Packet forwarding is enabled.D
The access point is set to the least congested channel.
考题
单选题What call performance statistics are reported on the Cisco Wireless IP Phone 7921 user interface?（）A
minimum jitterB
maximum jitterC
upstream standard packet deviationD
average MOS valueE
average conceal rate
考题
单选题Which statement describes the call behavior of the Cisco Unified Wireless IP Phone 7921G when it roams from 802.11b to 802.11a?（）A
The phone does a directed call hangup on 802.11b，then does an auto-redial on 802.11a，creating a new call.B
The phone does a directed call hangup on 802.11b， then the user does a redial on 802.11a，creating a new call.C
The phone does a disassociation on 802.11b and an association on 802.11a，and call remains up if the subnet has not changed.D
The phone does not roam from 802.11b to 802.11a when on an active call.E
The phone must switch network profiles to roam from 802.11b to 802.11a.
考题
单选题What is the Cisco recommended setting for the Cisco Unified Wireless Network WLC Voice Call Admission Control Max RF Bandwidth to support the Cisco Unified Wireless IP Phone 7921G?（）A
nominally 30 percent to best align with Cisco Unified Communications System recommendationsB
100 percent to ensure that the VoWLAN calls can use all the available bandwidth, if neededC
system default of 75 percentD
40 to 60 percentE
voice CAC should be left disabled unless wired QoS is configured
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