Which spanning tree mode will allow you to put multiple vlans into one instance？

A . All switch and bridge ports are in the forwarding state. B . All switch and bridge ports are assigned as either root or designated ports. C . All switch and bridge ports are in either the forwarding or blocking state. D . All switch and bridge ports are either blocking or looping.

A . one global STP instance for all VLANs B . one STP instance for each VLAN C . one STP instance per set of VLANs D . one STP instance per set of bridge

A .  interface bandwidth B .  interface delay C .  interface bandwidth and delay D .  hop count E .  bridge priority

A . Layer 5 B . Layer 4 C . Layer 3 D . Layer 2 E . Layer 1

A .  1） lowest root bridge id，2）lowest sender bridge id，3）lowest port id，4）lowest root path cost B .  1） lowest root path cost，2）lowest root bridge id，3）lowest sender bridge id，4）lowest sender port id C .  1） lowest root bridge id，2）lowest sender bridge id，3）lowest root path cost 4）owest sender port id D .  1） lowest root bridge id，2）lowest root path cost，3）lowest sender bridge id，4）lowest sender port id

A . to ensure a loop-free topology B . to protect against user-side loops C . when a VLAN spans access layer switches D . for the most deterministic and highly available network topology E . because of the risk of lost connectivity without Spanning Tree Protocol

A . 802.1D B . 802.1s C . 802.1w D . 802.1z

A . PortFast B . UplinkFast C . loop guard D . root guard E . BPDU guard F . BackboneFast

A . one global STP instance for all VLANs B . one STP instance for each VLAN C . one STP instance per set of VLANs D . one STP instance per set of bridge

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

A . lowest root bridge id；lowest sender bridge id；lowest port id；lowest root path cost B . lowest root path cost；lowest root bridge id；lowest sender bridge id；lowest sender port id C . lowest root bridge id；lowest sender bridge id；lowest root path cost；lowest sender port id D . lowest root bridge id；lowest root path cost；lowest sender bridge id；lowest sender port id

A . The path cost can be changed for an interface using the spanning-tree cost command B . The path cost can be changed for an interface using the stp path-cost command C . The SPT default path cost depends on the interface speed D . The STP default path cost is similar for all interface

A . amount of RAM B . bridge priority C . IOS version D . IP address E . MAC address F . speed of the link

A . amount of RAM B . bridge priority C . IOS version D . IP address E . MAC address F . speed of the link

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

A .  PortFast B .  UplinkFast C .  loop guard D .  root guard E .  BPDU guard F .  BackboneFast

A . root port B . backup port C . designated port D . alternate port

A .  to ensure a loop-free topology B .  to protect against user-side loops C .  when a VLAN spans access layer switches D .  for the most deterministic and highly available network topology E .  because of the risk of lost connectivity without Spanning Tree Protocol

A . It is the individual link cost based on latency B . It is the sum of the costs based on bandwidth C . It is the total hop count D . It is dynamically determined based on load

A .  one global STP instance for all VLANs B .  one STP instance for each VLAN C .  one STP instance per set of VLANs D .  one STP instance per set of bridge

A . BPDUs that enter a blocking port are discarded. B . BPDUs that enter a blocking port are processed. C . Loopguard puts an interface into a loop-inconsistent state when BPDUs stop being received on a blocking port. D . BPDUs are only processed on forwarding ports.

A . amount of RAM B . bridge priority C . IOS version D . IP address E . MAC address F . speed of the link

A . lowest root bridge ID B . lowest path cost to root bridge C . lowest sender bridge ID D . highest port ID E . highest root bridge ID F . highest path cost to root bridge

A .  IEEE 802.1s （MST） B .  IEEE 802.1Q （CST） C .  Cisco PVST+ D .  IEEE 802.1d （STP） E .  None of the other alternatives apply