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. sno

题目

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

相似考题

1.While troubleshooting an issue in the Ezonexam LAN you notice that a network interface port has collision detection and carrier sensing enabled on a shared twisted pair network. From this statement, what is known about the network interface port?A. This is an Ethernet port operating at half duplexB. This is an Ethernet port operating at full duplexC. This is a port on a network interface card in a PCD. This is 10 MB/s switch portE. This is a 100 MB/s switch portF. None of the above

2.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

3. 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

4.Which two Cisco AutoQoS configuration statements are true？ （）A、the auto discovery qos command is supported on serial interfaces， subinterfaces， and virtual interfacesB、CEF must be enabled before configuring the auto discovery qos commandC、the auto discovery qos privilege EXEC command must be configured on a router for several days to collect a sampling of data trafficD、the auto qos trust command relies on NBAR to provide VoIP classificationE、the auto qos voip command configures the voip classification on routers and switches

更多“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 ”相关问题

  • 第1题：

    A Cisco Catalyst switch is part of the CIS network. As an experienced network administrator, you are thinking of filtering the traffic within VLANI00 with the use of a VACL named "test" on that switch. Which of the following command will enable that?（）

    • A、interface vlan 100 ip access-group test in
    • B、interface vlan 100 ip access-group test
    • C、vlan access-map test 100
    • D、vlan filter test vlan-list 100

    正确答案:D

  • 第2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3题：

    You have configured a Cisco Catalyst switch to perform Layer 3 routing via an SVI and have  assigned that interface to VLAN 20. To check the status of the SVI， you issue the show interfaces vlan 20 command at the CLI prompt. You see from the output display that the interface is in an "up/up" state.  What must be true in an SVI configuration to bring the VLAN and line protocol up？（）

    • A、The port must be physically connected to another Layer 3 device.
    • B、At least one port in VLAN 20 must be active.
    • C、The Layer 3 routing protocol must be operational and receiving routing updates from neighboring peer devices.
    • D、Because this is a virtual interface， the operational status will always be in an "up/up" state.

    正确答案:B

  • 第4题：

    You need make configuration changes to an existing layer 3 switch in the Company network. On a  multilayer Catalyst switch，  which interface command is used to convert a Layer 3 interface to a  Layer 2 interface？（）

    • A、 switchport access vlan vlan-id
    • B、 switchport
    • C、 switchport mode access
    • D、 no switchport
    • E、 None of the other alternatives apply

    正确答案:B

  • 第5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6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7题：

    多选题
    Which two Cisco AutoQoS configuration statements are true？ （）
    A

    the auto discovery qos command is supported on serial interfaces， subinterfaces， and virtual interfaces

    B

    CEF must be enabled before configuring the auto discovery qos command

    C

    the auto discovery qos privilege EXEC command must be configured on a router for several days to collect a sampling of data traffic

    D

    the auto qos trust command relies on NBAR to provide VoIP classification

    E

    the auto qos voip command configures the voip classification on routers and switches


    正确答案： E,C
    解析： 暂无解析

  • 第8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9题：

    多选题
    The Cisco AutoQoS feature is being used throughout the Company VOIP network.  Which three  statements about this feature are true？（）
    A

    The mls qos global configuration command must be entered before configuring AutoQoS.

    B

    CEF must be enabled.

    C

    The no auto qos voip command is used to disable Cisco AutoQos and revoke all  configurations generated by Cisco AutoQos.

    D

    CDP must be enabled.

    E

    SNMP must be enabled.


    正确答案： D,B
    解析： 暂无解析

  • 第10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11题：

    多选题
    You have just purchased a new Cisco 3560 switch running the enhanced IOS and need configure  it to be installed in a high availability network. On a 3560 EMI switch，  which three types of  interfaces can be used to configure HSRP？（）
    A

    SVI interface

    B

    Access port

    C

    EtherChannel port channel

    D

    Loopback interface

    E

    Routed port

    F

    BVI interface


    正确答案： B,F
    解析： 暂无解析

  • 第12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13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14题：

    What method in a Cisco IOS router can confirm that packets marked for a particular QoS marking are being matched?（）

    • A、Issue a show policy-map interface command. 
    • B、Assuming Netflow is enabled, issue a show ip cache verbose flow command.
    • C、Issue a show crypto ipsec session command.
    • D、Issue a debug qos set command and a terminal monitor command.

    正确答案:A

  • 第15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16题：

    You have just purchased a new Cisco 3560 switch running the enhanced IOS and need configure  it to be installed in a high availability network. On a 3560 EMI switch，  which three types of  interfaces can be used to configure HSRP？（）

    • A、 SVI interface
    • B、 Access port
    • C、 EtherChannel port channel
    • D、 Loopback interface
    • E、 Routed port
    • F、 BVI interface

    正确答案:A,C,E

  • 第17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18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19题：

    单选题
    You have configured a Cisco Catalyst switch to perform Layer 3 routing via an SVI and have  assigned that interface to VLAN 20. To check the status of the SVI， you issue the show interfaces vlan 20 command at the CLI prompt. You see from the output display that the interface is in an "up/up" state.  What must be true in an SVI configuration to bring the VLAN and line protocol up？（）
    A

    The port must be physically connected to another Layer 3 device.

    B

    At least one port in VLAN 20 must be active.

    C

    The Layer 3 routing protocol must be operational and receiving routing updates from neighboring peer devices.

    D

    Because this is a virtual interface， the operational status will always be in an up/up state.


    正确答案： D
    解析： 暂无解析

  • 第20题：

    单选题
    A Cisco Catalyst switch is part of the CIS network. As an experienced network administrator, you are thinking of filtering the traffic within VLANI00 with the use of a VACL named "test" on that switch. Which of the following command will enable that?（）
    A

    interface vlan 100 ip access-group test in

    B

    interface vlan 100 ip access-group test

    C

    vlan access-map test 100

    D

    vlan filter test vlan-list 100


    正确答案： B
    解析： 暂无解析

  • 第21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22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23题：

    单选题
    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： C
    解析： 暂无解析

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