单选题What is the Cisco recommended EDCF queue to use for voice TSPEC?（）A AC_VIB AC_VOC AC_BKD AC_BE

第1题：

Which two statements correctly describe a Cisco WLC configuration of Wireless > QoS > Profiles >Wired_QoS_Profiles for an implementation of DSCP or CoS deployment?（）

• A、It must always be set on all QoS profile types because this sets the type of markings as either CoS or DSCP.
• B、It is optional if the Cisco WLC attached switch operates on a trust DSCP model.
• C、It must be set if the Cisco WLC attached switch operates on a trust CoS model.
• D、It sets the EDCF queue used for the radio-transmitted frames.

第2题：

What is the Cisco recommended EDCF queue to use for voice TSPEC?（）

• A、AC_VI
• B、AC_VO
• C、AC_BK
• D、AC_BE

第3题：

What are three of the functions that AutoQoS performs when it is configured on a switch？（）

• A、synchronizes FIFO， PQ， CQ， and MDRR， with WFQ， CBWFQ， and LLQ
• B、enables strict priority queuing for voice traffic， and weighted round robin queuing for data traffic
• C、enables low latency queuing to ensure that voice traffic receives priority treatment
• D、enforces a trust boundary on switch access ports and uplinks/downlinks 
• E、modifies queue sizes as well as queue weights where required 
• F、adjusts link speeds to adapt to QoS needs

第4题：

What is the recommended radius of a cell for a voice-ready wireless network？（）

• A、 6 dBm
• B、 19 dBm
• C、 5 dBm
• D、 7 dBm

第5题：

What does Cisco Unity Express use, by default, to select a voice-mail mail box?（）

• A、Last Called Number 
• B、Last Redirect Number 
• C、Original Called Number 
• D、Original Redirect Number 
• E、Forward Redirect Number

第6题：

What is the recommended Cisco DSCP value for a switch or router passing Cisco Unified Wireless IP Phone 7921G RTP packets?（）

• A、CS3
• B、CS1
• C、EF
• D、5
• E、6

第7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 recommendations
• B、100 percent to ensure that the VoWLAN calls can use all the available bandwidth, if needed
• C、system default of 75 percent
• D、40 to 60 percent
• E、voice CAC should be left disabled unless wired QoS is configured

第8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 entirety
• B、the voice packet will be transmitted first， followed by the fragmented FTP packet
• C、the FTP packet will be fragmented and the voice packet will be interleaved
• D、the FTP packet will be transmitted first in its entirety， follow by the voice packet

第9题：

Cisco Unified CallManager and Cisco CRS use what interface for call control?（）

• A、LDAP  
• B、HTTP  
• C、AXL  
• D、JTAPI

第10题：

What protocol does an IP phone use to learn the voice VLAN ID it should use for voice traffic？（）

• A、VTP
• B、802.1 q
• C、CDP
• D、Skinny Station Protocol