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While running long&#

题目

While running long running queries， you receive the Snapshot too old error. Which advisor can help you to avoid the Snapshot too old error？（）

  • A、 Memory Advisor
  • B、 Segment Advisor
  • C、 Undo Advisor
  • D、 SQL Tuning Advisor
参考答案和解析
正确答案:C
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相似问题和答案

第1题：

While paralleling two AC generators using synchronizing lamps only, both lamps will go dark when the generators are______.

A.running at the same speed

B.grounded

C.of the same polarity

D.in phase


正确答案：D

第2题：

While teaching, we should keep our clas running smoothly and

A．thoroughly
B．efficiently
C．speedily
D．directly

答案：B
解析：
考查副词辨析。句意为“教学过程中，我们应该保持课堂活动流畅而又__________地进行”。thoroughly意为“彻底地”，efficiently意为“高效地”，speedily意为“迅速地”，directly意为“直接地”。根据句意，故选B。

第3题：

Refer to the exhibit. Why has this switch not been elected the root bridge for VLAN1?()

A.It has more than one interface that is connected to the root network segment.

B.It is running RSTP while the elected root bridge is running 802.1d spanning tree.

C.It has a higher MAC address than the elected root bridge.

D.It has a higher bridge ID than the elected root bridge.


参考答案：D

第4题：

You have an SQL query that takes one minute to execute. You use the following code segment to execute the SQL query asynchronously.Dim ar As IAsyncResult = cmd.BeginExecuteReader（　）You need to execute a method named DoWork（　） that takes one second to run while the SQL query is executing. DoWork（　） must run as many times as possible while the SQL query is executing. Which code segment should you use?（）

  • A、While ar.AsyncWaitHandle Is Nothing DoWork()End Whiledr = cmd.EndExecuteReader(ar)
  • B、While Not ar.IsCompleted DoWork()End Whiledr = cmd.EndExecuteReader(ar)
  • C、While T hread.CurrentThread.ThreadState = ThreadState.Running DoWork()End Whiledr = cmd.EndExecuteReader(ar)
  • D、While Not ar.AsyncWaitHandle.WaitOne() DoWork()End Whiledr = cmd.EndExecuteReader(ar)

正确答案:B

第5题：

How does the Extended Get Digit String step differ from the Get Digit String? （）

  • A、It can be used in conjunction with another step. 
  • B、It allows the application programmer into another section of the application. 
  • C、Most of the Extended Get Digit String variables can be changed while the application is running. 
  • D、It allows the entry of a Boolean expression for the Interruptible and Clear DTMF Buffer on Retry fields.

正确答案:C,D

第6题：

You start a centrifugal cargo pump to discharge cargo．The pump works for a while and then loses suction．This could be caused by ______．

A.The pump running backwards

B.Incomplete priming

C.The discharge head being too high

D.All of the above


正确答案：B

第7题：

While teaching, we should keep our class running smoothly and ________.

A.thoroughly
B.efficiently
C.speedily
D.directly

答案：B
解析：
本题考查副词辨析
B选项，句意为“教学过程中，我们应该保持课堂活动流畅而又_______地进行”。efficiently “高效地”, 综上，B选项正确。
A选项，thoroughly “彻底地”，故排除。
C选项，speedily“迅速地”，故排除。
D选项，directly“直接地”，故排除。
故正确答案为B 项。

第8题：

Refer to the exhibit. Given the output shown from this Cisco Catalyst 2950, what is the most likely reason that interface FastEthernet 0／10 is not the root port for VLAN 2?()

A.This switch has more than one interface connected to the root network segment in VLAN 2.

B.This switch is running RSTP while the elected designated switch is running 802.1d Spanning Tree.

C.This switch interface has a higher path cost to the root bridge than another in the topology.

D.This switch has a lower bridge ID for VLAN 2 than the elected designated switch.


参考答案：C

第9题：

While discussing the customer’s environment the storage specialist discovers that the customerhas both Windows and UNIX servers running various applications. The customer is looking for acost effective 10 TB solution that includes a mirrored site to meet their Disaster Recovery plan.Which of the following solutions should be recommended？（）

  • A、DS5020 system running Metro Mirror and Volume Copy
  • B、Storwize V7000 running FlashCopy and Volume Copy
  • C、DS5020 system runningFlashCopy and Enhanced Remote Mirror
  • D、DS5300 system runningFlashCopy and Enhanced Remote Mirror

正确答案:C

第10题：

While an electrician was adding additional circuits for the Data Center， the system running the Database inadvertently powered down. The fallover of the service IP labels and volume groups to the hot standby node completed as expected； however， the database did not start. The database log file indicated that the database was already started.  What is the most likely cause of this problem？（）  

  • A、 The shared logical volumes and filesystems did not have database permissions.
  • B、 There was a test instance running on the standby system that must be shutdown.
  • C、 The tablespaces had an indicator indicating that the database had not shutdown properly.
  • D、 The startup script for the highly available instance did not first perform cleanup operations.

正确答案:D

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