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单选题
While you are troubleshooting network performance issues， you notice that a switch is periodically flooding all unicast traffic. Further investigation reveals that periodically the switch is also having spikes in CPU utilization， causing the MAC address table to be flushed and relearned. What is the most likely cause of this issue？（）
A
a routing protocol that is flooding updates
B
a flapping port that is generating BPDUs with the TCN bit set
C
STP is not running on the switch
D
a user that is downloading the output of the show-tech command
E
a corrupted switch CAM table
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更多 “单选题While you are troubleshooting network performance issues， you notice that a switch is periodically flooding all unicast traffic. Further investigation reveals that periodically the switch is also having spikes in CPU utilization， causing the MAC address table to be flushed and relearned. What is the most likely cause of this issue？（）A a routing protocol that is flooding updatesB a flapping port that is generating BPDUs with the TCN bit setC STP is not running on the switchD a user that is downloading the output of the show-tech commandE a corrupted switch CAM table” 相关考题
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While you are troubleshooting network performance issues， you notice that a switch is periodically flooding all unicast traffic. Further investigation reveals that periodically the switch is also having spikes in CPU utilization， causing the MAC address table to be flushed and relearned. What is the most likely cause of this issue？（）A、a routing protocol that is flooding updatesB、a flapping port that is generating BPDUs with the TCN bit setC、STP is not running on the switchD、a user that is downloading the output of the show-tech commandE、a corrupted switch CAM table
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考题
单选题While troubleshooting a network connectivity issue, you suspect that a router may be missing a route, or may be receiving bad routing information to a destination. What command should you issue to view the route that the router will use to reach a given destination?（）A
pingB
traceC
show ip routeD
show interfaceE
show cdp neighbors
考题
单选题While troubleshooting a network outage, you discover that an employee brought a switch from home into the office to connect additional equipment to the network. In order to increase his speed, he connected this switch to both network ports in his office, resulting in a bridge loop. Which of these can you implement to prevent future occurrences of this issue?（）A
RSTPB
root guardC
BPDU guardD
GLBP
考题
单选题You are the network administrator of a small Layer 2 network with 50 users. Lately， users have beencomplaining that the network is very slow. While troubleshooting， you notice that the CAM table of yourswitch is full， although it supports up to 12， 000 MAC addresses. How can you solve this issue and preventit from happening in the future？（）A
Upgrade the switchesB
Configure BPDU guardC
Configure VLAN access listsD
Configure port securityE
Configure Dynamic ARP inspection
考题
单选题You are a professional level SQL Sever 2008 Database Administrator in an international corporation named Wiikigo. You are experienced in managing databases in an enterprise-level organization, optimizing and sustaining the database life cycle. In the company, your job is to implement solutions on security, troubleshooting, deployment and optimization. A SQL Server 2008 infrastructure is managed by you. After a regular test, you find that performance degradation is experienced by an instance for the three reasons: Excessive CPU usage, Server processes paging and Deadlocks. A monitoring solution should be implemented to provide data, monitor and troubleshoot performance issues. And detailed deadlock information should be contained in the provided data. You should utilize the least amount of administrative effort to finish the task. Which tool will you utilize to finish the task?（）A
To finish the task, you should utilize Resource Governor. B
To finish the task, you should utilize Database Engine Tuning Advisor.C
To finish the task, you should utilize Extended Events. D
To finish the task, you should utilize Performance Monitor (SYSMON).
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多选题Your network is suffering from regular outages. After troubleshooting， you learn that the transmit lead of a fiber uplink was damaged. Which two features can prevent the same issues in the future？（）Aroot guardBloop guardCBPDU guardDUDLDEBPDU skew detection
考题
多选题EIGRP is being used as the routing protocol on the company network. While troubleshooting somenetwork connectivity issues， you notice a large number of EIGRP SIA （Stuck in Active） messages.What causes these SIA routes？（）AThe neighboring router stops receiving ACK packets from this routerBThe neighboring router starts receiving route updates from this routerCThe neighboring router is too busy to answer the query （generally caused by high CPUutilization）DThe neighboring router is having memory problems and cannot allocate the memory to processthe query or build the reply packet
考题
多选题While troubleshooting a routing problem on the company EIGRP network you discover that one ofthe routers is failing to establish adjacencies with its neighbor. What is a likely cause of thisproblem between neighbors？（）AThe K-values do not matchBThe hold times do not matchCThe hello times do not matchDThe AS numbers do not match
考题
单选题You are the network administrator of a small Layer 2 network with 50 users. Lately， users have been complaining that the network is very slow. While troubleshooting， you notice that the CAM table of your switch is full， although it supports up to 12，000 MAC addresses. How can you solve this issue and prevent it from happening in the future？（）A
Upgrade the switchesB
Configure BPDU guardC
Configure VLAN access listsD
Configure port securityE
Configure Dynamic ARP inspection
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