单选题An AIX system， which is running a database， is having performance issues with I/O writing.  The DBA has provided numbers for the HIGH and LOW watermarks for pending file writes， which will optimize the system for best performance.  To set these numbers

题目
单选题
An AIX system， which is running a database， is having performance issues with I/O writing.  The DBA has provided numbers for the HIGH and LOW watermarks for pending file writes， which will optimize the system for best performance.  To set these numbers， which of the following commands would be used？（）
A

 perfmon -h 30 -l 25

B

 chdev

C

 no -o

D

 smit chgsys

相似考题

1.第一组An automatic system usually consists of a control system and an information system. A control system is a system which measures the condition of some entity and, with the information, governs the state of a variable; i.e., speed, temperature, pressure, position, etc. The open-loop system is the simplest form. a control system may assume. It is distinguished from the closed-loop system by the lack of an input which measures the state of the controlled variable; such an input is called a feedback. In modern ships the open-loop system has practically disappeared and the closed-loop system which operates with a feed-back is extensively used. An information system serves the parallel function of monitoring system or plant performance. The monitoring function may serve a number of purposes; specifically it may indicate values of controlled variables to guide remote control operations, warn of off-limit conditions and provide record of performance. In many cases a visual and audible alarm may be provided to warn of off-limit conditions on board ship and, associated with this, the important variables will be recorded on demand. The automatic control system can be more sophisticated by incorporating digital-processing equipment, that is, a computer. This computer is usually fed with signals from all sensors. It scans the values of the sensors and generates alarm signals for off-limit conditions, acting as a super-supervisor. Sometimes, it can even make necessary and take the necessary action to optimize performance without human intervention.The closed-loop system differs from the open-loop system byA.the lack of a feedbackB.the presence of a feed backC.the lack of a computerD.the presence of a computer

2.A customer is currently using a Windows file server to share NFS storage (9 TB) to theirapplication server, and a small SAN to supply block I/O to their database servers (5 TB). As theircurrent hardware is aging they are looking for a new best of breed technology to combine file andblock I/O on a single storage unit. Which IBM solution would provide that capability at the lowestcost?（）A、 IBM XIV Storage System B、 IBM System Storage DS8700 C、 IBM System Storage N6070 D、 IBM System Storage N6210

3. A pharmaceutical company has a requirement for 8.5 TB of usable storage for a new data center. The customer has multiple host applications running on Solaris， Windows 2003， HP-U/X， Linux， and IBM System i platforms.  Which IBM System Storage DS8000 volume configuration providesthe best performance and highest availability for this customer（）A、RAID 3B、RAID 5C、RAID 6D、RAID 10

4.A customer is running system management software on one of their Windows xSeries servers， and the software seems to slow down their database application over time.  The customer is running IBM Director in their environment.  Which IBM Director tool can they utilize to guarantee processor time for the different applications and optimize the server performance？（）A、Software RejuvenationB、Capacity ManagerC、Capacity Workload ManagerD、Aurema Application Workload Manager

更多“单选题An AIX system， which is running a database， is having performance issues with I/O writing.  The DBA has provided numbers for the HIGH and LOW watermarks for pending file writes， which will optimize the system for best performance.  To set these numbers”相关问题

  • 第1题：

    An administrator logs into a server and notices slow performance.  When the system finishes the logon process a message is displayed saying the system is out of Virtual Memory.  Which of the following is the MOST likely cause of this issue？（）

    • A、The drives have been configured as basic.
    • B、The system partition with the page file is out of space.
    • C、The VMFS has bad sectors.
    • D、The drivers for the memory have become corrupt.

    正确答案:B

  • 第2题：

    Which of the following RAID levels provide the best performance for a system where there are mostly writes occurring？（）

    • A、 RAID 0
    • B、 RAID 1
    • C、 RAID 3
    • D、 RAID 5

    正确答案:A

  • 第3题：

    Which of the following commands should be used to determine which disk of a system is experiencing a disk I/O performance problem？（）

    • A、 filemon
    • B、 istat
    • C、 vmstat
    • D、 iostat

    正确答案:D

  • 第4题：

    An AIX system， which is running a database， is having performance issues with I/O writing.  The DBA has provided numbers for the HIGH and LOW watermarks for pending file writes， which will optimize the system for best performance.  To set these numbers， which of the following commands would be used？（）

    • A、 perfmon -h 30 -l 25
    • B、 chdev
    • C、 no -o
    • D、 smit chgsys

    正确答案:D

  • 第5题：

    From the V$SESSION_LONGOPS view， you find that some of the database users have long-running queries and are consuming a lot of CPU time. This causes problems for you when you try to log on as the system user and perform small maintenance tasks. You would like to ensure that users SYS and SYSTEM get priority over all other users.   Which method would you use to achieve this objective？（）

    • A、create a plan directive in the SYS_GROUP
    • B、create the pending area for the consumer group
    • C、activate the provided SYSTEM_PLAN in Resource Manager
    • D、set the TIMED_STATISTICS parameter to TRUE in the parameter file
    • E、set the execution time limit for all users， except SYS and SYSTEM， in their profiles

    正确答案:C

  • 第6题：

    A system is experiencing performance problems.  After checking the CPU usage, the problem identified is that the system is "CPU Bound".  Which of the following outcomes will determine if there is a possible CPU constraint?（）

    • A、 Low paging 
    • B、 High paging 
    • C、 Workload manager is not turned on 
    • D、 A high run queue length 

    正确答案:D

  • 第7题：

    单选题
    A customer is currently using a Windows file server to share NFS storage (9 TB) to theirapplication server, and a small SAN to supply block I/O to their database servers (5 TB). As theircurrent hardware is aging they are looking for a new best of breed technology to combine file andblock I/O on a single storage unit. Which IBM solution would provide that capability at the lowestcost?（）
    A

     IBM XIV Storage System 

    B

     IBM System Storage DS8700 

    C

     IBM System Storage N6070 

    D

     IBM System Storage N6210


    正确答案： B
    解析： 暂无解析

  • 第8题：

    单选题
    A system is experiencing performance problems.  After checking the CPU usage, the problem identified is that the system is "CPU Bound".  Which of the following outcomes will determine if there is a possible CPU constraint?（）
    A

     Low paging 

    B

     High paging 

    C

     Workload manager is not turned on 

    D

     A high run queue length 


    正确答案： D
    解析： 暂无解析

  • 第9题：

    单选题
    A system administrator is monitoring a system that has recently shown a decrease in performance. The administrator suspects there is an overload of traffic on a single Ethernet adapter. Which of the following commands is best to identify a possible overload of the Ethernet adapter？（）
    A

    ping

    B

    iostat

    C

    netstat

    D

    ifconfig


    正确答案： C
    解析： 暂无解析

  • 第10题：

    单选题
    A system administrator is monitoring a system that has recently shown a decrease in performance.The administrator suspects that the system may be low on memory and may be paging excessively.Which of the following commands is best to identify a possible paging problem？（）
    A

    iostat

    B

    netstat

    C

    ps

    D

    vmstat


    正确答案： D
    解析： 暂无解析

  • 第11题：

    单选题
    Company.com has decided to use the FUBAR Application Server to host their web application. Unfortunately， the FUBAR Application Server uses the server machine’s file system for its JNDI namespace. Every JNDI lookup performed in the web application is translated into a file 1/0 operation， which results in very poor performance.  Which J2EE pattern can help with this performance issue？（）
    A

     Transfer Object

    B

     Service Locator

    C

     Intercepting Filter

    D

     Model-View-Controller


    正确答案： B
    解析： 暂无解析

  • 第12题：

    单选题
    Which of the following RAID levels provide the best performance for a system where there are mostly writes occurring？（）
    A

     RAID 0

    B

     RAID 1

    C

     RAID 3

    D

     RAID 5


    正确答案： A
    解析： 暂无解析

  • 第13题：

    An administrator has added a new hard drive to a server that is running out of space on its C Drive and is experiencing slow performance.  The administrator needs to free up space on the C Drive.Which of the following is the BEST action for the administrator to take to free up space on the drive？（）

    • A、Move the page file to the new drive.
    • B、Copy the system32 directory to the new drive.
    • C、Convert the C drive to a basic disk.
    • D、Setup a software RAID to mirror the C drive.

    正确答案:A

  • 第14题：

    A system administrator is monitoring a system that has recently shown a decrease in performance. The administrator suspects there is an overload of traffic on a single Ethernet adapter. Which of the following commands is best to identify a possible overload of the Ethernet adapter？（）

    • A、ping
    • B、iostat
    • C、netstat
    • D、ifconfig

    正确答案:C

  • 第15题：

    A system administrator is monitoring a system that has recently shown a decrease in performance.The administrator suspects that the system may be low on memory and may be paging excessively.Which of the following commands is best to identify a possible paging problem？（）

    • A、iostat
    • B、netstat
    • C、ps
    • D、vmstat

    正确答案:D

  • 第16题：

    You are tuning RMAN to optimize performance. You want tape I/O to be asynchronous when you perform tape backups. Which action should you take？（）

    • A、 Set the BACKUP_TAPE_IO_SLAVES parameter to FALSE
    • B、 Set the BACKUP_TAPE_IO_SLAVES parameter to TRUE
    • C、 Use compression when performing tape backups
    • D、 Configure multiple SBT channels

    正确答案:B

  • 第17题：

    You need to review the current storage system and decide on the best configuration for the tempdb database on SQL1 to improve tempdb performance. Your solution must ensure that company requirements and policies are fulfilled.Which two actions should you perform？（）

    • A、Create a RAID-1 set， and move tempdb to this drive set.
    • B、Create a RAID-0 set， and move tempdb to this drive set.
    • C、Set the starting size of tempdb to 3 GB
    • D、Create a RAID-0 set， and move tempdb and the user database with the largest index to this drive set.
    • E、Disable automatic file growth on tempdb.

    正确答案:A,C

  • 第18题：

    单选题
    Which of the following commands should be used to determine which disk of a system is experiencing a disk I/O performance problem？（）
    A

     filemon

    B

     istat

    C

     vmstat

    D

     iostat


    正确答案： A
    解析： 暂无解析

  • 第19题：

    单选题
    An administrator has added a new hard drive to a server that is running out of space on its C Drive and is experiencing slow performance.  The administrator needs to free up space on the C Drive.Which of the following is the BEST action for the administrator to take to free up space on the drive？（）
    A

    Move the page file to the new drive.

    B

    Copy the system32 directory to the new drive.

    C

    Convert the C drive to a basic disk.

    D

    Setup a software RAID to mirror the C drive.


    正确答案： B
    解析： 暂无解析

  • 第20题：

    单选题
    An administrator logs into a server and notices slow performance.  When the system finishes the logon process a message is displayed saying the system is out of Virtual Memory.  Which of the following is the MOST likely cause of this issue？（）
    A

    The drives have been configured as basic.

    B

    The system partition with the page file is out of space.

    C

    The VMFS has bad sectors.

    D

    The drivers for the memory have become corrupt.


    正确答案： D
    解析： 暂无解析

  • 第21题：

    多选题
    You need to review the current storage system and decide on the best configuration for the tempdb database on SQL1 to improve tempdb performance. Your solution must ensure that company requirements and policies are fulfilled.Which two actions should you perform？（）
    A

    Create a RAID-1 set， and move tempdb to this drive set.

    B

    Create a RAID-0 set， and move tempdb to this drive set.

    C

    Set the starting size of tempdb to 3 GB

    D

    Create a RAID-0 set， and move tempdb and the user database with the largest index to this drive set.

    E

    Disable automatic file growth on tempdb.


    正确答案： B,E
    解析： 暂无解析

  • 第22题：

    单选题
    A pharmaceutical company has a requirement for 8.5 TB of usable storage for a new data center. The customer has multiple host applications running on Solaris， Windows 2003， HP-U/X， Linux， and IBM System i platforms.  Which IBM System Storage DS8000 volume configuration providesthe best performance and highest availability for this customer（）
    A

    RAID 3

    B

    RAID 5

    C

    RAID 6

    D

    RAID 10


    正确答案： A
    解析： 暂无解析

  • 第23题：

    单选题
    An AIX system， which is running a database， is having performance issues with I/O writing.  The DBA has provided numbers for the HIGH and LOW watermarks for pending file writes， which will optimize the system for best performance.  To set these numbers， which of the following commands would be used？（）
    A

     perfmon -h 30 -l 25

    B

     chdev

    C

     no -o

    D

     smit chgsys


    正确答案： C
    解析： 暂无解析

  • 第24题：

    单选题
    A customer is running system management software on one of their Windows xSeries servers， and the software seems to slow down their database application over time.  The customer is running IBM Director in their environment.  Which IBM Director tool can they utilize to guarantee processor time for the different applications and optimize the server performance？（）
    A

    Software Rejuvenation

    B

    Capacity Manager

    C

    Capacity Workload Manager

    D

    Aurema Application Workload Manager


    正确答案： D
    解析： 暂无解析

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