When you enter the interface command auto qos voip cisco－phone on a port at the edge of a network,how does the Cisco Catalyst switch detect if a Cisco IP Phone is connected to the port?()A. by snooping the CoS marking on the incoming framesB. by using RTP

题目

When you enter the interface command auto qos voip cisco－phone on a port at the edge of a network,how does the Cisco Catalyst switch detect if a Cisco IP Phone is connected to the port?()

A. by snooping the CoS marking on the incoming frames

B. by using RTP hello messages between the switch port and the Cisco IP Phone

C. by using CDP

D. by using DHCP snooping

E. by snooping the incoming 802.1Q VLAN tag

相似考题

1.As a network administrator, you issue the interface auto qos voip cisco-phone command on a port in an edge network. It is possible for a Cisco Catalyst switch to check if a Cisco IP Phone is directly attached to that port by:（）A. using DHCP snoopingB. snooping the incoming 802.1Q VLAN tagC. using CDPD. snooping the CoS marking on the incoming frames

2. You are configuring a Cisco multilayer switch for the Company network. Which command would you use to configure a port to act as a routed interface？（）A、 ip routingB、 switchport mode trunkC、 no switchportD、 switchport trunk native vlan 1E、 None of the other alternatives apply

3.Which three of these pre-requisite for resetting a Catalyst Express 500 switch when Cisco Network Assistant is unavailable？（）A、At Least one enabled switch port that is unconnected to any deviceB、A PC pre-configured with a specific IP Address and MaskC、A PC or laptop with Windows 2000 or Windows XP installed and a web browser that has Java Script enabledD、Physical Access to SwitchE、A Switch with no connected devices

4.When you enter the interface command auto qos voip cisco-phone on a port at the edge of a network,how does the Cisco Catalyst switch detect if a Cisco IP Phone is connected to the port?（）A、by snooping the CoS marking on the incoming framesB、by using RTP hello messages between the switch port and the Cisco IP PhoneC、by using CDPD、by using DHCP snoopingE、by snooping the incoming 802.1Q VLAN tag

参考答案和解析

参考答案：C

更多“When you enter the interface command auto qos voip cisco－phone on a port at the edge of a network,how does the Cisco Catalyst switch detect if a Cisco IP Phone is connected to the port?() ”相关问题

第1题：

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.
正确答案:E
第2题：

What is the effect of applying the switchport trunk encapsulation dot1q command to a port on a Cisco Catalyst switch？（）
- A、By default， native VLAN packets going out this port will be tagged.
- B、Without an encapsulation command， 802.1Q will be the default encapsulation if DTP fails to negotiate a trunking protocol.
- C、The interface will support the reception of tagged and untagged traffic.
- D、If the device connected to this port is not 802.1Q-enabled， it will not be able to handle 802.1Q packets.
正确答案:C
第3题：

When configuring a routed port on a Cisco multilayer switch， which of these is a required configuration task that you must perform to enable that port to function as a routed port？（）
- A、Enable the switch to participate in routing updates from external devices with the router command in global configuration mode.
- B、Enter the no switchport command to disable Layer 2 functionality at the interface level.
- C、Each port participating in routing of Layer 3 packets must have an IP routing protocol assigned on aperinterface level.
- D、Routing is enabled by default on a multilayer switch， so the port can become a Layer 3 routing interface by assigning the appropriate IP address and subnet information.
正确答案:B
第4题：

When using Cisco Network Assistant to configure a WS-CE500-24LC switch， which three are available choices in the port settings window？（）
- A、Duplex mode selections
- B、Auto MDIX selections
- C、Status Selections
- D、Group mode selections
- E、Port security selections
正确答案:A,B,C
第5题：

Which of these commands can you use to show if an operational Catalyst switch port is set for autonegotiation of speed and duplex when running Cisco IOS software?（）
- A、show port network
- B、 show running-config
- C、show controllers Ethernet-controller
- D、 show interfaces
正确答案:B
第6题：

As a network administrator, you issue the interface auto qos voip cisco-phone command on a port in an edge network. It is possible for a Cisco Catalyst switch to check if a Cisco IP Phone is directly attached to that port by:（）
- A、using DHCP snooping
- B、snooping the incoming 802.1Q VLAN tag
- C、using CDP
- D、snooping the CoS marking on the incoming frames
正确答案:C
第7题：

A Cisco Aironet 1020 controller-based access point has been connected to a Catalyst 3550-24 PWRSwitch. However， when it is powered up， the access point fails. What has caused this problem？（）
- A、access point does not support 802.11h
- B、incorrect switch power supply
- C、switch port is not enabled
- D、switch does not support 802.3af
- E、access point has not been initialized with the primary controller
正确答案:D
第8题：

What accurately describes the usage of a Cisco AutoQoS command？（）
- A、on Catalyst switches， the show auto discovery qos command is used to display the data collected during the Auto-Discovery phase
- B、on Catalyst switches， the show auto qos command is used to display packet statistics of all classes that are configured for all service policies
- C、on Cisco routers， the show mls qos maps command is used to verify the CoS-to-DSCP maps for egress packet queuing
- D、on Cisco routers， the show auto qos command is used to display the AutoQoS interface templates， policy maps， class maps， and ACLs
正确答案:D
第9题：

单选题
When configuring a routed port on a Cisco multilayer switch， which of these is a required configuration task that you must perform to enable that port to function as a routed port？（）
A
Enable the switch to participate in routing updates from external devices with the router command in global configuration mode.
B
Enter the no switchport command to disable Layer 2 functionality at the interface level.
C
Each port participating in routing of Layer 3 packets must have an IP routing protocol assigned on aperinterface level.
D
Routing is enabled by default on a multilayer switch， so the port can become a Layer 3 routing interface by assigning the appropriate IP address and subnet information.

正确答案： B
解析：暂无解析
第10题：

单选题
When you enter the interface command auto qos voip cisco-phone on a port at the edge of a network, how does the Cisco Catalyst switch detect if a Cisco IP Phone is connected to the port? （）
A
by snooping the CoS marking on the incoming frames
B
by using RTP hello messages between the switch port and the Cisco IP Phone
C
by using CDP
D
by using DHCP snooping
E
by snooping the incoming 802.1Q VLAN tag

正确答案： D
解析：暂无解析
第11题：

单选题
You are configuring a Cisco multilayer switch for the Company network. Which command would you use to configure a port to act as a routed interface？（）
A
ip routing
B
switchport mode trunk
C
no switchport
D
switchport trunk native vlan 1
E
None of the other alternatives apply

正确答案： C
解析：暂无解析
第12题：

多选题
Which three of these pre-requisite for resetting a Catalyst Express 500 switch when Cisco Network Assistant is unavailable？（）
A
At Least one enabled switch port that is unconnected to any device
B
A PC pre-configured with a specific IP Address and Mask
C
A PC or laptop with Windows 2000 or Windows XP installed and a web browser that has Java Script enabled
D
Physical Access to Switch
E
A Switch with no connected devices

正确答案： A,C
解析：暂无解析
第13题：

You examine the port statistics on a Cisco Catalyst switch and notice an excessive number offrames are being dropped. Which of the following are possible reasons for the drops？（）
- A、Unknown destination MAC address
- B、Bad cabling
- C、MAC forwarding table is full
- D、Port configured for half duplex
- E、Port configured for full duplex
- F、Network congestion
正确答案:B,F
第14题：

While troubleshooting a connectivity problem, a network administrator notices that a port status LED on a Cisco Catalyst series switch is alternating green and amber. Which condition could this indicate（）。
- A、The port is experiencing errors
- B、The port is administratively disabled
- C、The port is blocked by spanning tree
- D、The port has an active link with normal traffic activity
正确答案:A
第15题：

You work as a network Technician. A new workstation has consistently been unable to obtain anIP address from the DHCP server when the workstation boots. Older workstations function normally， and the new workstation obtains an address when manually forced to renew its address. What should be configured on the switch to allow the workstation to obtain an IP address at boot？（）
- A、UplinkFast on the switch port connected to the server
- B、BackboneFast on the switch port connected to the server
- C、PortFast on the switch port connected to the workstation
- D、trunking on the switch
正确答案:C
第16题：

A cisco aironet 1020 controller-based access point has been connected to a catalyst 3550-24 pwr switch. however， when it is powered up， the access point fails. What has caused this problem？（）
- A、access point does not support 802.11h
- B、incorrect switch power supply
- C、switch port is not enabled
- D、switch does not support 802.3af
- E、access point has not been initialized with the primary controller
正确答案:D
第17题：

You need to configure a new Cisco router to be installed in the VOIP network. Which threeinterface commands will configure the switch port to support a connected Cisco phone and to trustthe CoS values received on the port if CDP discovers that a Cisco phone is attached？（）
- A、switchport voice vlan vlan-id
- B、mls qos trust device cisco-phone
- C、switchport priority extend cos_value
- D、mls qos trust cos
- E、mls qos trust override cos
正确答案:A,B,D
第18题：

A Cisco Aironet 1020 controller-based access point has been connected to a Catalyst 3550-24PWR Switch. However， when it is powered up， the access point fails. What has caused this problem？（）
- A、access point does not support 802.11h
- B、incorrect switch power supply
- C、switch port is not enabled
- D、switch does not support 802.3af
- E、access point has not been initialized with the primary controller
正确答案:D
第19题：

When configuring port security on a Cisco Catalyst switch port， what is the default action taken by the switch if a violation occurs？（）
- A、protect （drop packets with unknown source addresses）
- B、restrict （increment SecurityViolation counter）
- C、shut down （access or trunk port）
- D、transition （the access port to a trunking port）
正确答案:C
第20题：

You need to configure a new Cisco router to be installed in the Company VOIP network. Which three interface commands will configure the switch port to support a connected Cisco phone and to trust the CoS values received on the port if CDP discovers that a Cisco phone is attached？（）
- A、switchport voice vlan vlan-id
- B、mls qos trust device cisco-phone
- C、switchport priority extend cos_value
- D、mls qos trust cos
- E、mls qos trust override cos
正确答案:A,B,D
第21题：

单选题
Which of these commands can you use to show if an operational Catalyst switch port is set for autonegotiation of speed and duplex when running Cisco IOS software?（）
A
show port network
B
show running-config
C
show controllers Ethernet-controller
D
show interfaces

正确答案： D
解析：暂无解析
第22题：

多选题
You need to configure a new Cisco router to be installed in the Company VOIP network. Which three interface commands will configure the switch port to support a connected Cisco phone and to trust the CoS values received on the port if CDP discovers that a Cisco phone is attached？（）
A
switchport voice vlan vlan-id
B
mls qos trust device cisco-phone
C
switchport priority extend cos_value
D
mls qos trust cos
E
mls qos trust override cos

正确答案： B,C
解析：暂无解析
第23题：

单选题
What accurately describes the usage of a Cisco AutoQoS command？（）
A
on Catalyst switches， the show auto discovery qos command is used to display the data collected during the Auto-Discovery phase
B
on Catalyst switches， the show auto qos command is used to display packet statistics of all classes that are configured for all service policies
C
on Cisco routers， the show mls qos maps command is used to verify the CoS-to-DSCP maps for egress packet queuing
D
on Cisco routers， the show auto qos command is used to display the AutoQoS interface templates， policy maps， class maps， and ACLs

正确答案： C
解析：暂无解析
第24题：

单选题
What is the effect of applying the switchport trunk encapsulation dot1q command to a port on a Cisco Catalyst switch？（）
A
By default， native VLAN packets going out this port will be tagged.
B
Without an encapsulation command， 802.1Q will be the default encapsulation if DTP fails to negotiate a trunking protocol.
C
The interface will support the reception of tagged and untagged traffic.
D
If the device connected to this port is not 802.1Q-enabled， it will not be able to handle 802.1Q packets.

正确答案： C
解析：暂无解析

When you enter the interface command auto qos voip cisco－phone on a port at the edge of a network,how does the Cisco Catalyst switch detect if a Cisco IP Phone is connected to the port?()A. by snooping the CoS marking on the incoming framesB. by using RTP

题目

相似考题

参考答案和解析

更多“When you enter the interface command auto qos voip cisco－phone on a port at the edge of a network,how does the Cisco Catalyst switch detect if a Cisco IP Phone is connected to the port?() ”相关问题

相关内容