多选题Which three JVM options would you add to investigate performance issues in a Hot-Spot JVM?（）A-xx:+PrintGCDetailsB-xx:+PrintGCTimeStampsC-xx:+HandlePromotionFailureD-verbose:gcE-server

题目
多选题
Which three JVM options would you add to investigate performance issues in a Hot-Spot JVM?（）
A

-xx:+PrintGCDetails

B

-xx:+PrintGCTimeStamps

C

-xx:+HandlePromotionFailure

D

-verbose:gc

E

-server

相似考题

1.When your WebLogic Server solution needs to be scaled out with additional capacity and you  Don’t want to add additional hardware, which three techniques should you us?（）A、Assign more than one managed server to a physical hardware that allows better CPU  utilizationB、Assign more than one application to one managed server to better utilize threads within a single JVM processC、Assign the same application to more than one managed server to load balance requests  between serversD、Assign the same heap size to the managed server across the cluster for easier control of  memory footprint  E、Create a virtualized environment with hypervisor for an easier solution

2.Which command （without options） would you use to display how much space is available on all mounted partitions？（）

3.A customer is putting together a high-performance computing cluster of p655 nodes.  They need a total of 48 processors and want to get the best performance possible out of those systems.  They are evaluating four options and have asked the pSeries technical specialist to recommend which one would provide the best performance based on total rPerf.  Their workload may grow over time. Which of the following should the pSeries technical specialist recommend？（）A、Twelve 4-way p655 nodes and add more as neededB、Six 8-way p655 nodes and add more as neededC、Six 4-way p655 nodes with four processors CoD on each node in case of growthD、Three 8-way p655 nodes with eight processors CoD on each node in case of growth

4.You have an Exchange Server 2010 Mailbox server.You need to identify which users have the largest mailboxes on the server.What should you do？（）A、Run the Get-MailBoxStatistics cmdlet.B、Run the Get-StoreUsageStatistics cmdlet.C、Add the MSExchangeIS Client performance counters to the Performance Monitor.D、Add the MSExchangeIS Mailbox performance counters to the Performance Monitor.

参考答案和解析
正确答案： A,B
解析： 暂无解析
更多“多选题Which three JVM options would you add to investigate performance issues in a Hot-Spot JVM?（）A-xx:+PrintGCDetailsB-xx:+PrintGCTimeStampsC-xx:+HandlePromotionFailureD-verbose:gcE-server”相关问题

  • 第1题：

    WebSphere Application Server supports performance data collection using the Performance Monitoring Infrastructure （PMI）.  Which tool supports PMI and would be best to analyze the WebSphere Commerce runtime EJB， JVM and thread pool stats？（）

    • A、WebSphere Commerce Analyzer
    • B、Tivoli Performance Viewer.
    • C、Tivoli Web Site Analyzer.
    • D、DB2 Intelligent Miner for Data.

    正确答案:B

  • 第2题：

    下列关于JDK、JRE和JVM的描述。哪项正确？（）     

    • A、JDK中包含了JRE，JVM中包含了JRE
    • B、JRE中包含了JDK，JDK中包含了JVM
    • C、JRE中包含了JDK，JVM中包含了JRE
    • D、JDK中包含了JRE，JRE中包含了JVM

    正确答案:D

  • 第3题：

    一个java程序运行从上到下的环境次序是（）

    • A、 操作系统、Java程序、jre/jvm、硬件
    • B、 jre/jvm、Java程序、硬件、操作系统
    • C、 java程序、jre/jvm、操作系统、硬件
    • D、 java程序、操作系统、jre/jvm、硬件

    正确答案:C

  • 第4题：

    Which three JVM options would you add to investigate performance issues in a Hot-Spot JVM?（）

    • A、-xx:+PrintGCDetails
    • B、-xx:+PrintGCTimeStamps  
    • C、-xx:+HandlePromotionFailure
    • D、-verbose:gc
    • E、-server

    正确答案:A,B,E

  • 第5题：

    Oracle JRockit JVM uses -Xns option to set nursery size when the generational garbage collection mode is used.  Which two JVM properties are affected by changing its size ？（）

    • A、 compaction ratio limit
    • B、 garbage collection frequency
    • C、 garbage collection times
    • D、 fragmentation heap size

    正确答案:B,C

  • 第6题：

    What are the three steps you should take to tune a JDBC Connection pool in WebLogic from the  initial settings in a production environment?（）

    • A、Ensure the maximum size is increased to an appropriate setting.
    • B、Set the minimum and maximum size of the connection pool to the same value.
    • C、Increase the statement cache size.
    • D、Add more heap to the JVM.
    • E、Add more nodes to the cluster.

    正确答案:A,C,E

  • 第7题：

    多选题
    A common approach to solve application performance issues is to add more hardware. Which two  reasons describe why this alone does not always solve performance problems?（）
    A

    There may be a bottleneck in the application that additional hardware would not solve.

    B

    Adding more hardware is costly and time consuming.

    C

    Adding hardware at the application layer may place additional load on an already overloaded database, network appliance, or storage system.

    D

    Adding more hardware may introduce new configuration requirements that need to be tested.


    正确答案： D,B
    解析： 暂无解析

  • 第8题：

    多选题
    Which three concerning the use of the java.io.Serializable interface are true？（）
    A

    Objects from classes that use aggregation cannot be serialized.

    B

    Art object serialized on one JVM can be successfully deserialized on a different JVM.

    C

    The values in fields with the volatile modifier will NOT survive serialization anddeserialization.

    D

    The values in fields with the transient modifier will NOT survive serialization anddeserialization.

    E

    It is legal to serialize an object of a type that has a supertype that does NOT implement java.io.Serializable.


    正确答案： B,E
    解析： 暂无解析

  • 第9题：

    多选题
    What are three functions of a WebSphere Node Agent?（）
    A

    monitors performance

    B

    manages JVM memory

    C

    serves J2EE applications

    D

    manages the deployment manager

    E

    manages configuration synchronization

    F

    routes administrative requests to servers


    正确答案： F,C
    解析： 暂无解析

  • 第10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.


    正确答案： B,A
    解析： 暂无解析

  • 第11题：

    多选题
    Oracle JRockit JVM uses -Xns option to set nursery size when the generational garbage collection mode is used.  Which two JVM properties are affected by changing its size ？（）
    A

    compaction ratio limit

    B

    garbage collection frequency

    C

    garbage collection times

    D

    fragmentation heap size


    正确答案： A,D
    解析： 暂无解析

  • 第12题：

    单选题
    下列关于JDK、JRE和JVM关系的描述中，正确的是（）.
    A

    JDK中包含了JRE，JVM中包含了JRE。

    B

    JRE中包含了JDK，JDK中包含了JVM。

    C

    JRE中包含了JDK，JVM中包含了JRE。

    D

    JDK中包含了JRE，JRE中包含了JVM。


    正确答案： B
    解析： 暂无解析

  • 第13题：

    Which IBM Resource would best help you determine the proper performance tuning of your System x hardware and the application workload of the software？（）

    • A、xREF Sheets
    • B、IBM Sizing Guides
    • C、Configuration & Options Guide - （COG）
    • D、Standalone Solutions Configuration Tool （SSCT）

    正确答案:B

  • 第14题：

    以下关于JVM的叙述，哪项正确？（） 

    • A、JVM运行于操作系统之上，它依赖于操作系统
    • B、JVM运行于操作系统之上，它与操作系统无关
    • C、JVM支持Java程序运行，它能够直接运行Java字节码文件
    • D、JVM支持Java程序运行，它能够直接运行Java源代码文件

    正确答案:A,C

  • 第15题：

    Which three statements concerning the use of the java.io.Serializable interface are true？（）

    • A、Objects from classes that use aggregation cannot be serialized.
    • B、An object serialized on one JVM can be successfully deserialized on a different JVM.
    • C、The values in fields with the volatile modifier will NOT survive serialization and deserialization.
    • D、The values in fields with the transient modifier will NOT survive serialization and deserialization.
    • E、It is legal to serialize an object of a type that has a supertype that does NOT implement java.io.Serializable.

    正确答案:B,D

  • 第16题：

    You want to capture WebLogic internal events correlated with JVM events for viewing offline. What three actions must you take to enable this within WebLogic?（）

    • A、Run WebLogic in a JRockit JVM and ensure the Flight Recorder is enabled.
    • B、Configure the WebLogic Diagnostic Framework Event Volume to Low, Medium, or High  depending on the type of events you want to capture.
    • C、Configure the WebLogic Diagnostic Framework bridge to send events to the JRockit Flight  Recording. 
    • D、Take a dump from the default recording or create a new recording for the time period you want  to capture.

    正确答案:A,B,D

  • 第17题：

    Identify three scenarios in which you would recommend the use of SQL Performance Analyzer to analyzeimpact on the performance of SQL statements.（）

    • A、Change in the Oracle Database version
    • B、Change in your network infrastructure
    • C、Change in the hardware configuration of the database server
    • D、Migration of database storage from non-ASM to ASM storage
    • E、Database and operating system upgrade

    正确答案:A,C,E

  • 第18题：

    多选题
    You want to capture WebLogic internal events correlated with JVM events for viewing offline. What three actions must you take to enable this within WebLogic?（）
    A

    Run WebLogic in a JRockit JVM and ensure the Flight Recorder is enabled.

    B

    Configure the WebLogic Diagnostic Framework Event Volume to Low, Medium, or High  depending on the type of events you want to capture.

    C

    Configure the WebLogic Diagnostic Framework bridge to send events to the JRockit Flight  Recording.

    D

    Take a dump from the default recording or create a new recording for the time period you want  to capture.


    正确答案： D,B
    解析： 暂无解析

  • 第19题：

    单选题
    WebSphere Application Server supports performance data collection using the Performance Monitoring Infrastructure （PMI）.  Which tool supports PMI and would be best to analyze the WebSphere Commerce runtime EJB， JVM and thread pool stats？（）
    A

    WebSphere Commerce Analyzer

    B

    Tivoli Performance Viewer.

    C

    Tivoli Web Site Analyzer.

    D

    DB2 Intelligent Miner for Data.


    正确答案： B
    解析： 暂无解析

  • 第20题：

    多选题
    When your WebLogic Server solution needs to be scaled out with additional capacity and you  Don’t want to add additional hardware, which three techniques should you us?（）
    A

    Assign more than one managed server to a physical hardware that allows better CPU  utilization

    B

    Assign more than one application to one managed server to better utilize threads within a single JVM process

    C

    Assign the same application to more than one managed server to load balance requests  between servers

    D

    Assign the same heap size to the managed server across the cluster for easier control of  memory footprint

    E

    Create a virtualized environment with hypervisor for an easier solution


    正确答案： D,C
    解析： 暂无解析

  • 第21题：

    多选题
    You plan to take a closed database backup using operating system commands. Which three SHUTDOWN options are appropriate for this type of backup？（）
    A

    ABORT

    B

    NORMAL

    C

    IMMEDIATE

    D

    TRANSACTIONAL


    正确答案： A,B
    解析： 暂无解析

  • 第22题：

    多选题
    Which three JVM options would you add to investigate performance issues in a Hot-Spot JVM?（）
    A

    -xx:+PrintGCDetails

    B

    -xx:+PrintGCTimeStamps

    C

    -xx:+HandlePromotionFailure

    D

    -verbose:gc

    E

    -server


    正确答案： B,D
    解析： 暂无解析

  • 第23题：

    多选题
    Which three statements concerning the use of the java.io.Serializable interface are true？（）
    A

    Objects from classes that use aggregation cannot be serialized.

    B

    An object serialized on one JVM can be successfully deserialized on a different JVM.

    C

    The values in fields with the volatile modifier will NOT survive serialization and deserialization.

    D

    The values in fields with the transient modifier will NOT survive serialization and deserialization.

    E

    It is legal to serialize an object of a type that has a supertype that does NOT implement java.io.Serializable.


    正确答案： B,C
    解析： 暂无解析

  • 第24题：

    多选题
    Identify three scenarios in which you would recommend the use of SQL Performance Analyzer to analyzeimpact on the performance of SQL statements.（）
    A

    Change in the Oracle Database version

    B

    Change in your network infrastructure

    C

    Change in the hardware configuration of the database server

    D

    Migration of database storage from non-ASM to ASM storage

    E

    Database and operating system upgrade


    正确答案： A,E
    解析： 暂无解析

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