Which three port states are used by RSTP 802.1w？（）

相似题目

• When you execute the "ip helper-address" command on a router， which three UDP ports getenabled automatically by default？（）

  A . 53（DNS） B . 69（TFTP） C . 515（LPR） D . 161（SNMP） E . 49（TACACS）

  查看最佳答案

• R1 and R2 exchange HSRP between each other in the Company network.  In which three HSRP  states do routers send hello messages？（）

  A .  Learn B .  Speak C .  Standby D .  Listen E .  Active F .  Remove

  查看最佳答案

• Which three are valid methods to monitor and trend SAN port channels with DCNM？（）

  A .  use summary view in the device manager B .  from the DCNM-SAN client， view ISLs in real time from the Performance drop-down list C .  for each port channel， select Monitor Continually D .  configure traps for each port channel to utilize RMON E .  set up flows with the DCNM-SAN client and use the Performance Manager web client for performance collectio

  查看最佳答案

• The conventions under which the port state control inspection is carried out include all the following except （）.

  A . SOLAS 74 B . MARPOL 73/78 C . STCW 78/95 D . ISM Code

  查看最佳答案

• What are three methods that may be use d to allow a switch to determine which ports to forward IP multicast messages to?（）

  A . IGMP B . IGMP snooping C . PIM D . CGMP E . static assignment F . CDP

  查看最佳答案

• Which three configuration tasks are required to successfully deploy NBAR to recognize TCP and UDP stateful protocols？ （）

  A . over leased lines， use the multilink ppp command to reduce latency and jitter， and to create Distributed Link Fragmentation and interleaving B . use the service-policy command to attach a traffic flow to an interface on the router C . use the ip rsvp bandwidth command to set a strict upper limit on the bandwidth NBAR uses， and to guarantee admission of any flows D . use the policy-map command to define one or more QoS policies （such as shaping， policing， and so on） to apply to traffic defined by a class map E . use the random-detect dscp command to modify the default minimum and maximum thresholds for the DSCP value F . use the class-map command to define one or more traffic classes by specifying the criteria by which traffic is classified

  查看最佳答案

• Which are valid modes for a switch port used as a VLAN trunk (Choose three.)（）。

  A . transparent B . auto C . on D . desirable E . blocking F . forwarding

  查看最佳答案

• Which of the following three port types are valid Spanning Tree port types？（Choose the best threeanswers.）（）

  A . Designated port B . Nonswitch port C . Switch port D . Nonroot port E . Nondesignated port F . Root port

  查看最佳答案

• Which port state is interface Fa0/2 of switch 2 in for VLANs 1 and 160？ （）

  A . Listening B . Learning C . Disabled D . Blocking E . Forwarding F . Discarding G . None of the other alternatives apply

  查看最佳答案

• A port in a redundant topology is currently in the blocking state and is not receiving BPDUs. To ensure that this port does not erroneously transition to the forwarding state，  which command should be configured to satisfy the requirement？（）

  A . Switch（config）#spanning-tree loopguard default B . Switch（config-if）#spanning-tree bdpufilter C . Switch（config）#udld aggressive D . Switch（config-if）#spanning-tree bpduguard

  查看最佳答案

• Which two states are the port states when RSTP has converged?（）

  A . blocking B . learning C . discarding D . forwarding E . listening

  查看最佳答案

• Private VLANS can be configured as which three of these port types？（）

  A . isolated B . protected C . private D . associated E . promiscuous F . munity

  查看最佳答案

• Which port state is introduced by Rapid-PVST?（）

  A . learning B . listening C . discarding D . forwarding

  查看最佳答案

• Which three port states are used by RSTP 802.1w？ （）

  A . Listening B . Learning C . Forwarding D . Blocking E . Discarding F . Disabled

  查看最佳答案

• Which of the following are spanning tree port states?（）

  A . Learning B . Spanning C . Listening D . Forwarding E . Initializing F . Filtering G . Permitting

  查看最佳答案

• Which two states are the port states when RSTP has converged？（）

  A . blocking B . learning C . disabled D . forwarding E . listening

  查看最佳答案

• Which three configuration tasks are required to successfully deploy NBAR to recognize TCP and UDP stateful protocols？（）

  A . Over leased lines，use the multilink ppp command to reduce latency and jitter，and to create Distributed Link Fragmentation and interleaving. B . Use the service-policy command to attach a traffic flow to an interface on the router. C . Use the ip rsvp bandwidth command to set a strict upper limit on the bandwidth NBAR uses，and toguarantee admission of any flows. D . Use the policy-map command to define one or more QoS policies （such as shaping，policing，and so on） to apply to traffic defined by a class map. E . Use the random-detect dscp command to modify the default minimum and maximum thresholds for the DSCP value. F . Use the class-map command to define one or more traffic classes by specifying the criteria by which traffic is classified.

  查看最佳答案

• Which three flow-control port states lead to enabled link flow control？ （）

  A .  Receive port： Enabled， Transmit port： Enabled B .  Receive port： Enabled， Transmit port： Desired C .  Receive port： Enabled， Transmit port： Disabled D .  Receive port： Disabled， Transmit port： Desired E .  Receive port： Desired， Transmit port： Desired

  查看最佳答案

• Which three connection options are available when configuring a switch port to be part of a privateVLAN? （）(Choose three.)

  A . isolated mode B . switchport mode C . modular mode D . community mode E . promiscuous mode F . global mode

  查看最佳答案

• Which three Layer 2 access designs have all of their uplinks in an active state?（）

  A . Flex Links B . loop-free U C . looped square D . looped triangle E . loop-free inverted U

  查看最佳答案

• Which three Layer 2 access designs have all of their uplinks in an active state？（）

  A . Flex Links B . loop-free U C . looped square D . looped triangle E . loop-free inverted U

  查看最佳答案

• Routers can send hello messages in three HSRP states.  Which ones are they？（）

  A .  Standby B .  Learn C .  Listen D .  Speak E .  Active

  查看最佳答案

• Which are valid modes for a switch port used as a VLAN trunk? (Choose three.)（）

  A . transparent B . auto C . on D . desirable E . blocking F . forwarding

  查看最佳答案