Application A holds an Update lo

题目

Application A holds an Update lock on a single row and application B is trying to read that row. If both applications are using isolation level UR, which of the following will occur?()

  • A、Application B will read the row.
  • B、Applications A and B will cause a deadlock situation.
  • C、Application B will wait until application A releases the Update lock.
  • D、Application A will be terminated so that application B can read the row.
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相似问题和答案

第1题:

Which of the following are methods to automatically update the antivirus application?() (Select TWO).

  • A、Establish rules in the email scheduling program to perform updates.
  • B、Select Update Now from the program options.
  • C、Use the Automatic Update feature built into the application.
  • D、Use scripts.
  • E、Use Windows Update.

正确答案:C,D

第2题:

Which of the following circumstances would automatically create a system restore point?()

  • A、installation of an unsigned driver
  • B、a system crash
  • C、installation of an application that uses Windows Installer or installation of Shield Pro version 6.0 or later
  • D、installing an update by using the Windows Update or Automatic Updates
  • E、each time the system is rebooted

正确答案:A,D

第3题:

A client application calls a Windows Communication Foundation (WCF) service with a proxy class that was generated by Visual Studio.The service binding was changed from wsHttpBinding to basicHttpBinding. The method signatures in the service contract are changed.After these changes, the client application receives errors when calling methods on the service.You need to ensure that the client can invoke methods on the service successfully.What should you do?()

A. Update the configuration file to use basicHttpBinding.

B. Enable anonymous authentication for the service.

C. Copy the configuration file elements under theelement from the service back to the client.

D. Update the service reference.


参考答案:D

第4题:

A batch application executes a large number of update statements. The service level agreement for the application states that the application must complete its work as quickly as possible to ensure that dependent workloads can start ontime. What is one way to help the application complete quickly?()

  • A、Code the application to issue a LOCK TABLE statement.  
  • B、Code the application to issue a LOCK ROW statement.  
  • C、Decrease the number of I/O servers.  
  • D、Increase the locklist parameter. 

正确答案:A

第5题:

Application A currently holds an exclusive lock on a single row and application B tries to access that row. If lock timeout is set to -1 and both applications are using isolation level RS, which of the following will occur?()

  • A、Applications A and B will cause a deadlock situation
  • B、Application B will read the previous version of the row
  • C、Application B will read the row and see uncommitted changes made by application A
  • D、Application B will be placed in a lock-wait state until application A releases its lock

正确答案:D

第6题:

Which of the following products and utilities can be used to update all encrypted data as well as the merchant key in a WebSphere Commerce database for a given instance?()

  • A、The Database Update Tool found in Configuration Manager
  • B、The LDAP Server
  • C、The WebSphere Application Server Administrative Console
  • D、The WebSphere Commerce SecurityUpdate Command
  • E、The WebSphere Commerce Administration Console

正确答案:A

第7题:

A server was recently updated with the latest antivirus definitions. Immediately after the update,the server begins to report file not found? errors for a mission critical application. Which of the following is the MOST likely reason for this?()

  • A、The update was done incorrectly and now the server needs to be restarted.
  • B、The update has discovered viruses on the server and removed those virus files.
  • C、The update requires a reboot for the files to process correctly.
  • D、The update has quarantined files that are false positives.

正确答案:D

第8题:

After you install a new updsate, an application on the computer fails to run. You need to remove the update.What should you do?()

A.A

B.B

C.C

D.D


参考答案:D

第9题:

Application A is designed to execute the following SQL statements within a single Unit of Work (UOW). UPDATE employee SET salary = salary * 1.1 WHERE empno='000010' UPDATE department SET deptname = 'NEW dept' WHERE deptno='A00'Application B is designed to execute the following SQL statements within a single Unit of Work (UOW). UPDATE department SET deptname = 'OLD DEPT' WHERE deptno='A00' UPDATE employee SET salary = salary * 0.5 WHERE empno='000010' Application A and application B execute their first SQL statement at the same time. When application A and application B try to execute their second SQL statement, a deadlock occurs. What will happen?()

  • A、The database manager will rollback the transaction in both applications.
  • B、The database manager will rollback the transaction in one of the two applications.
  • C、Application B will successfully update the EMPLOYEE and DEPARTMENT tables; Application A will be placed in a lock wait state.
  • D、Application A will successfully update the EMPLOYEE and DEPARTMENT tables; Application B will terminate when the lock timeout value is reached.

正确答案:B

第10题:

A customer is developing a custom application that involves a multistep provisioning process for a new account. There is a custom Java client application that is generating multiple JMS messages as part of the process and sending them to the WebLogic tier where they are processed.    Which three steps must you take to implement the solution to allow for scalability and parallel processing of multiple simultaneous provisioning requests while ensuring messages for an individual process are not delivered out of order?()

  • A、Update the client application that is creating the JMS messages to use Unit of Work.
  • B、Configure a WebLogic Cluster for Distributed JMS.
  • C、Update the client application that is creating the JMS messages to use Unit of Order.
  • D、Enable XA Transactions on the JMS Connection Factory used by the client application.
  • E、Enable Load Balancing on the JMS connection factory used by the client application. 

正确答案:B,C

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