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问题:

[单选] A customer claims that while redeploying a web application in the production system all their  customers are having to log in again. What do you recommend? ()

A . Sessions can't be preserved when redeploying applications. The customer needs to consider redeployment during late nights when the traffic is low.  
B . Change the flag responsible for the development mode of their environment. In the production mode, all sessions are preserved while redeploying application.  
C . Change Hotspot to JRockit. Sessions can't be preserved on HotSpot when redeploying application. 
D . Use flag -version when redeploying the application. This will switch on the Side By Side deployment feature and preserve existing sessions.
E . Open a service request with Oracle Support. This is unexpected behavior. Sessions are  preserved without any extra settings.

You need to change the text of a pop-up menu that appears when a user right clicks the mouse in the EMP_DATA data block. Where could you find the node for the pop-up menu in the Object Navigator?() Built-in Packages 。 Menus 。 PL/SQL Libraries 。 Object Libraries 。 Form Module。 往复式压缩机按气缸排列分为哪些类型? You are working on an Oracle Database 10g database. For which purposes would you use the Flashback Transaction Query feature? ()  To recover a dropped table.。  To recover a dropped schema.。  To recover data from a truncated table.。  To view changes made by all the transactions during a given period of time.。  To view changes made by a single transaction during a given period of time.。 In your database, the users SYS and SYSTEM have been assigned the profiles, ADMIN_PROF1 and ADMIN_PROF2, respectively. The rest of the database administrators are assigned the profile ADMIN_PROF3.  You create a profile, USER_PROF, and assign it to the application user, Adams. After a week you realize that the profile is no longer required and you decide to drop it.  What will Adam’s profile be after the USER_PROF profile has been dropped?() no profiles。 the default profile。 same as the profile of SYS user。 same as the profile of SYSTEM user。 语文教育学的基本学习方法是什么? A customer claims that while redeploying a web application in the production system all their  customers are having to log in again. What do you recommend? ()
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