You notice a performance change in your production Oracle 12c database. You want to know which change caused this performance difference.<br /> Which method or feature should you use?（）<p> You notice a performance change in your production Oracle 12c database. You want to know which change caused this performance difference.<br /> Which method or feature should you use?（）</p>..

第1题

[单选题] You have a server named Server1 that runs Windows Server 2003 Service Pack 2 (SP2). Users report that it takes a long time to open shared files on Server1. Users do not report this performance problem when they open files on other servers. You notice the following performance statistics on Server1: You need to optimize the performance of Server1. What should you do? （）

A、Add more RAM. B、Upgrade the processor. C、Increase the size of the PageFile. D、Disable Data Execution Prevention (DEP).

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第2题

[单选题] You have a server named Server1 that runs Windows Server 2003 Service Pack 2 (SP2). Users report that it takes a long time to open shared files on Server1. Users do not report this performance problem when they open files on other servers. You notice the following performance statistics on Server1: You need to optimize the performance of Server1. What should you do?（）

A、Add more ram. B、Upgrade the processor. C、Increase the size of the PageFile. D、Disable Data Execution Prevention (DEP).

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第3题

[单选题] You notice that the performance of your production 24/7 Oracle database significantly degraded.Sometimes you are not able to connect to the instance because it hangs. You do not want to restart thedatabase instance.How can you detect the cause of the degraded performance?（）

A、Enable Memory Access Mode, which reads performance data from SGA. B、Use emergency monitoring to fetch data directly from SGA analysis. C、Run Automatic Database Diagnostic Monitor (ADDM) to fetch information from the latest Automatic Workload Repository (AWR) snapshots. D、Use Active Session History (ASH) data and hang analysis in regular performance monitoring. E、Run ADDM in diagnostic mode.

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第4题

[多选题] You notice a performance change in your production Oracle database and you want to know which change has made this performance difference. You generate the Compare Period Automatic Database Diagnostic Monitor (ADDM) report to further investigation. Which three findings would you get from the report?（）

A、It detects any configuration change that caused a performance difference in both time periods. B、It identifies any workload change that caused a performance difference in both time periods. C、It detects the top wait events causing performance degradation. D、It shows the resource usage for CPU, memory, and I/O in both time periods. E、It shows the difference in the size of memory pools in both time periods. F、It gives information about statistics collection in both time periods.

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第5题

[单选题] You have a computer that runs Windows Vista Ultimate. You open the Windows System Performance Rating tool and receive a Windows Experience Index base score of 1.0. The subscores are as follows: ·Processor: 4.7 ·Memory (RAM): 3.6 ·Graphics: 1.0 ·Gaming Graphics: 1.0 ·Primary Hard Disk: 3.0 You upgrade your video adapter card with a new card that meets the minimum requirements for Windows Aero. You open the System Performance and Rating tool and notice the base score and subscores have not changed. You need to enable Windows Aero. What should you do?（）

A、A B、B C、C D、D

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第6题

[单选题] You work as a network engineer at TestKing.com. TestKing users have noticed extremely slow network performance, intermittent connectivity, and connection loss. After entering the show interfaces command, you notice that the Ethernet interface is configured as 100 Mbps full-duplex and that there is evidence of late collisions. What could be the cause of this problem?（）

A、duplex mismatch B、a routing loop C、trunking mode mismatch D、improperly configured root bridge E、improperly configured static VLAN

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第7题

[单选题] You have completed an OSPF implementation, and you are verifying OSPF operation. During this verification, you notice that the OSPF route of 172.16.10.0 is repeatedly appearing and disappearing from the routing table. Further investigation finds that the OSPF CPU utilization is very high and the routers are constantly performing SPF calculations. You determine that 172.16.20.2 is the source of the 172.16.10.0 route. Using the show ip ospf database router 172.16.20.1 command, you notice that when this show command is performed repeatedly, the contents of the LSA change every few seconds. What could be the cause of this problem?（）

A、OSPF authentication errors between some of the routers B、Two routers have the same OSPF router ID C、Issues with mistuned OSPF timers D、OSPF LSA pacing issues between some of the routers E、OSPF neighbor adjacency problems between some of the routers

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第8题

[单选题] You noticed that large memory allocations for the Oracle backup and restore operations are causing a performance overhead on the shared pool. Which memory structure would you configure to avoid this performance overhead？（）

A、 recycle buffer cache B、 large pool C、 streams pool D、 keep buffer cache E、 redo log buffer

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第9题

[单选题] An IS-IS router is adjacent to and passing traffic with a neighbor. You perform a show isis interface detail command and notice that for some interfaces you have a circuit type of 3. Which IS-IS level(s) is enabled on these interfaces?（）

A、Level 1 only B、Level 2 only C、Level 1 and Level 2 D、Level 3 only

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