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单选题
Which command enhances the 802.1D convergence time on ports that are connected to hosts？（）
A
spanning-tree backbonefast
B
spanning-tree uplinkfast
C
spanning-tree portfast
D
spanning-tree cost512
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Which command enhances the 802.1D convergence time on ports that are connected to hosts?()
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Which command will show the MAC addresses of stations connected to switch ports?()
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You have done a partial migration from 802.1D STP to 802.1w STP. Which of the following is true？（）A、802.1D and 802.1w interoperate only when the 802.1D STP domain supports rapid convergence.B、Ports leading to 802.1D devices will run in compatibility mode， while the rest of the ports will run in 802.1w mode.C、This is an invalid configuration and a partial migration cannot be done.D、The bridge timers will be set to match the 802.1D devices.E、A secondary root bridge will always be populated within the 802.1D domain.F、If the root bridge is selected within the 802.1D domain， the whole STP domain will run in 802.1D compatibility mode.G、In partially migrated 802.1w networks， it is recommended to keep the STP diameter below 4.
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Routing convergence time is which of the following？（）A、Time required for a VPN connection to occurB、Time required by protocols to update their forwarding tables after changes have occurredC、Time required for an IDS to detect suspicious softwareD、Time required by switch ports to update their link status and transition to the forwarding state
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Which of the following command line utilities can Karen, a technician, use to check for open ports?（）A、nbtstatB、ipconfigC、nslookupD、netstat
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Which EIGRP feature should a designer consider to limit the scope of EIGRP queries andminimize convergence time？（）A、 Using multiple EIGRP processesB、 Tuning down the EIGRP delay parameterC、 FIGRP stub routingD、 Limiting the number of EIGRP neighbor per device
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Which two statements about layer 3 access designs are correct？（）A、 IP address space is difficult to manage.B、 Broadcast and fault domains arc increasedC、 Convergence time is fractionally slower than STPD、 Limits on clustering and NIC teaming are removedE、 Fast uplink convergence is supported tor failover and fallback
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Which two of the following steps are necessary to configure inter-VLAN routing between multilayer switches？（）A、Configure a dynamic routing protocol.B、Configure SVI interfaces with IP addresses and subnet masks.C、Configure switch ports with network addresses.D、Configure switch ports with the autostate exclude command.E、Document the MAC addresses of the switch ports.
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Which command will show the MAC addresses of stations connected to switch ports?（）A、show mac-addressB、show arpC、show tableD、show switchport
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You are the Cisco Network Designer in Cisco.com. Which two statements about Layer 3 access designs are correct?（）A、Convergence time is fractionally slower than STP.B、Broadcast and fault domains are increased.C、IP address space is difficult to manage.D、Fast uplink convergence is supported for failover and fallback.
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Which command enhances the 802.1D convergence time on ports that are connected to hosts?（）A、spanning-tree backbonefastB、spanning-tree uplinkfastC、spanning-tree portfastD、spanning-tree cost512
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Why does RSTP have a better convergence time than 802.1D？（）A、it is newerB、it has smaller timersC、it has less overheadD、it is not timer-based
考题
单选题Which of the following technologies can improve convergence time following a link failure in a serviceprovider network？（）A
MPLS TE FRB
MPLS VPNC
BFDD
RSVPE
VPLSF
SNMP
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单选题You are about to design a very fast convergence time on a service provider network. Which feature wouldyou utilize to declare a link failure within less than two seconds of the fault on a link？（）A
fast convergence SFPB
MTU discoveryC
redundancy linksD
keepaliveE
carrier delay
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单选题Why does RSTP have a better convergence time than 802.1D？（）A
it is newerB
it has smaller timersC
it has less overheadD
it is not timer-based
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单选题QoS policies are applied on the switches of a LAN. Which type of command will show the effects of the policy in real time?（）A
show commandB
debug commandC
configuration commandD
rommon command
考题
单选题You have done a partial migration from 802.1D STP to 802.1w STP. Which of the following is true？（）A
802.1D and 802.1w interoperate only when the 802.1D STP domain supports rapid convergence.B
Ports leading to 802.1D devices will run in compatibility mode， while the rest of the ports will run in 802.1w mode.C
This is an invalid configuration and a partial migration cannot be done.D
The bridge timers will be set to match the 802.1D devices.E
A secondary root bridge will always be populated within the 802.1D domain.F
If the root bridge is selected within the 802.1D domain， the whole STP domain will run in 802.1D compatibility mode.G
In partially migrated 802.1w networks， it is recommended to keep the STP diameter below 4.
考题
单选题Routing convergence time is which of the following？（）A
Time required for a VPN connection to occurB
Time required by protocols to update their forwarding tables after changes have occurredC
Time required for an IDS to detect suspicious softwareD
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set date ntp 64.32.129.3
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单选题Which of the following is true regarding the effect of EIGRP queries on the network design？（）A
EIGRP queries will be the most significant issue with respect to stability and convergence B
EIGRP queries are not a consideration as long as EIGRP has a feasible successor with a nexthop AD that is greater than the FD of the current successor route C
EIGRP queries will only increase the convergence time when there are no EIGRP stubsdesigned in the network
考题
单选题Which EIGRP feature should a designer consider to limit the scope of EIGRP queries andminimize convergence time？（）A
Using multiple EIGRP processesB
Tuning down the EIGRP delay parameterC
FIGRP stub routingD
Limiting the number of EIGRP neighbor per device
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