单选题What is the recommended Cisco DSCP value for a switch or router passing Cisco Unified Wireless IP Phone 7921G RTP packets?（）ACS3BCS1CEFD5E6
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
CS3
B
CS1
C
EF
D
5
E
6
参考解析
解析：
暂无解析
相关考题：
After enabling port security on a Cisco Catalyst switch， what is the default action when the configuredmaximum of allowed MAC addresses value is exceeded？（）A、The port’s violation mode is set to restrictB、The port is shut downC、The MAC address table is cleared and the new MAC address is entered into the tableD、The port remains enabled， but bandwidth is throttled until old MAC addresses are aged out
Which companion switch is recommended to be installed with Cisco Smart Business Communications System？（）A、 C2950B、 C3750C、 ESW 500D、 SRW224G4
The Company network administrator has entered the "auto qos voip cisco-phone" command on switch R1. What does this command do？（）A、It disables the trust boundary feature because the switch knows a Cisco IP phone is attached.B、The switch assigns a CoS value of 5 to incoming packets.C、If a Cisco IP phone is attached and removed， the switch continues to trust the CoS values as long as the switch is not rebooted.D、It turns on STP to see if a Cisco IP phone is attached.E、If a Cisco IP phone is attached， the switch trusts the CoS.F、None of the other alternatives apply.
What are two things that an access point （AP） does when it receives an 802.11 frame from a Wi-Fi Multimedia （WMM） client？ （）A、EAP-FASTEAP-FAS Access Point Protocol （LWAPP） packet is used to generate an 802.1 p priority value in the packets， which are sent to an Ethernet switch by the controllers.B、The AP will police the 802.1 le priority value to ensure it does not exceed the maximum value allowed for the QoS policy that is assigned to that client.C、Once the LWAPP packet is received， the AP generates the IEEE 802.1 p priority value.D、The AP will map the 802.11e priority value to the DSCP value.E、The AP will map the DSCP value to the outer LWAPP frame.
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.
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
A switch that is to be added to the production network has been preconfigured （trunks， VLANs， VTP， and STP） and was tested in your lab. After installing the switch into the network， the entire network went down. What might explain what happened？ （）A、The new switch happened to be running Cisco Catalyst operating system， while the other network switches were running Cisco IOS Software.B、The configuration revision of the new switch was higher than the configuration revision of the production VTP domain.C、The link costs on the new switch are set to a high value， causing all ports on the new switch to go into a forwarding mode and none into blocking mode， thereby causing a spanning-tree loop.D、The ports connecting to the two switches have been configured incorrectly. One side has the command switchport mode access and the other switchport mode trunk.
You are bringing up a new Cisco Catalyst switch, and wish to connect it via a trunk to another switch from a different vendor, which uses the IEEE standard for the trunking method. When setting the encapsulation type on the trunk, what should you configure on the Cisco switch?（）A、Switch(config)# switchport trunk encapsulation islB、Switch(config)# switchport trunk encapsulation ietfC、Switch(config-if)# switchport trunk encapsulation islD、Switch(config-if)# switchport trunk encapsulation ietfE、Switch(config-if)# switchport trunk encapsulation dot1q
With the DSCP value fo "101110"， what does the "11" in bits 1 and 2 indicate ？（）A、AF ClassB、Drop ProbabilityC、CS（Class Selector Value ）D、PHB （Per-Hop Behavior ）E、IP PrecedenceF、Queue Depth
When configuring SSH， which is the Cisco minimum recommended modulus value？（）A、2048 bitsB、1024 bitsC、256 bitsD、512 bits
What is the typical marked DSCP value for a voice media packet in Voice over IP technology？（）A、AF41B、AF31C、AF21D、BEE、EF
An LWAPP encapsulated packet is being sent from the Cisco WLC v5.2 to the AP for a wireless WMM client. Can the LWAPP frame be altered to change the resulting final WMM queue for transmission on an 802.11 client?（）A、Yes，by modifying the LWAPP frame header DSCP value in transit.B、Yes，by modifying the LWAPP frame header 802.1p value in transit.C、No，the WMM queue classification parameter is transported inside the LWAPP tunnel.D、No，the WMM queue classification parameter is determined at the AP based on the original client IP header DSCP value.
The network administrator has discovered that the power supply has failed on a switch in the company LAN and that the switch has stopped functioning. It has been replaced with a Cisco Catalyst 2950 series switch. What must be done to ensure that this new switch becomes the root bridge on the network?（）A、Lower the bridge priority number.B、Change the MAC address of the switch.C、Increase the VTP revision number for the domain.D、Lower the root path cost on the switch ports.E、Assign the switch an IP address with the lowest value.
What is one of the reasons that custom QoS ACLs are recommended over automatic QoS when configuring ports on a Catalyst 6500 for use with IP phones？（）A、 79xx IP phones do not automatically mark voice packets with non-zero DSCP values.B、 79xx IP phones do not mark protocol packets such as DHCP， DNS， or TFTP with non-zero DSCP values.C、 79xx IP phones do not mark voice packets with optimal DSCP values.D、 79xx IP phones use a custom protocol to communicate CDP information to the switch.
单选题What is the typical marked DSCP value for a voice signaling packet in VoIP technology？（）ABEBAF41CAF21DEFEAF31
单选题When configuring SSH， which is the Cisco minimum recommended modulus value？（）A2048 bitsB1024 bitsC256 bitsD512 bits
单选题A switch that is to be added to the production network has been preconfigured （trunks， VLANs， VTP， and STP） and was tested in your lab. After installing the switch into the network， the entire network went down. What might explain what happened？ （）AThe new switch happened to be running Cisco Catalyst operating system， while the other network switches were running Cisco IOS Software.BThe configuration revision of the new switch was higher than the configuration revision of the production VTP domain.CThe link costs on the new switch are set to a high value， causing all ports on the new switch to go into a forwarding mode and none into blocking mode， thereby causing a spanning-tree loop.DThe ports connecting to the two switches have been configured incorrectly. One side has the command switchport mode access and the other switchport mode trunk.
单选题What is the typical marked DSCP value for a voice media packet in Voice over IP technology？（）AAF41BAF31CAF21DBEEEF
单选题What is one of the reasons that custom QoS ACLs are recommended over automatic QoS when configuring ports on a Catalyst 6500 for use with IP phones？（）A 79xx IP phones do not automatically mark voice packets with non-zero DSCP values.B 79xx IP phones do not mark protocol packets such as DHCP， DNS， or TFTP with non-zero DSCP values.C 79xx IP phones do not mark voice packets with optimal DSCP values.D 79xx IP phones use a custom protocol to communicate CDP information to the switch.
单选题Which companion switch is recommended to be installed with Cisco Smart Business Communications System？（）A C2950B C3750C ESW 500D SRW224G4
单选题The network administrator has discovered that the power supply has failed on a switch in the company LAN and that the switch has stopped functioning. It has been replaced with a Cisco Catalyst 2950 series switch. What must be done to ensure that this new switch becomes the root bridge on the network？（）A Lower the bridge priority number.B Change the MAC address of the switch.C Increase the VTP revision number for the domain.D Lower the root path cost on the switch ports.E Assign the switch an IP address with the lowest value.
单选题With the DSCP value fo "101110"， what does the "11" in bits 1 and 2 indicate ？（）AAF ClassBDrop ProbabilityCCS（Class Selector Value ）DPHB （Per-Hop Behavior ）EIP PrecedenceFQueue Depth
单选题An LWAPP encapsulated packet is being sent from the Cisco WLC v5.2 to the AP for a wireless WMM client. Can the LWAPP frame be altered to change the resulting final WMM queue for transmission on an 802.11 client?（）AYes，by modifying the LWAPP frame header DSCP value in transit.BYes，by modifying the LWAPP frame header 802.1p value in transit.CNo，the WMM queue classification parameter is transported inside the LWAPP tunnel.DNo，the WMM queue classification parameter is determined at the AP based on the original client IP header DSCP value.
多选题What are two characteristics of a managed Cisco Small Business Switch when recommending it over an unmanaged switch？ （）Aend-user installed and supportedBVLAN supportClow initial costDdesktop installationEweb-controlled GUI
多选题Which two statements correctly describe a Cisco WLC configuration of Wireless QoS Profiles Wired_QoS_Profiles for an implementation of DSCP or CoS deployment?（）AIt must always be set on all QoS profile types because this sets the type of markings as either CoS or DSCP.BIt is optional if the Cisco WLC attached switch operates on a trust DSCP model.CIt must be set if the Cisco WLC attached switch operates on a trust CoS model.DIt sets the EDCF queue used for the radio-transmitted frames.