What is the purpose of the RMAN recovery catalog？（） It must be used because all RMAN-related backup and recovery metadata information is contained in it.。 It provides a convenient， optional， repository of backup- and recovery-related metadata.。 It provides the ability to store RMAN scripts for global use by any database that has access to the repository.。 It provides a means of storing all RMAN backup sets physically in an Oracle database server. 。 It provides the ability to store backup records for more than a year.。
篮球肩上单手传球的动作要领是：（）。
Which statement is true regarding virtual private catalogs?（） A virtual private catalog owner can create a local stored script, and have read/write access to a global stored script.。 The virtual private catalog owner cannot create and modify the stored scripts.。 The set of views and synonyms that make up the virtual private catalog is stored in the schema of the RMAN recovery catalog owner.。 To perform most of the RMAN operations, the virtual catalog owner must have the SYSDBA or SYSOPER privilege on the target database。
A company wants a solution to consolidate their storage using the DS4000 series and implement a disaster recovery solution across two data centers linked by fibre to duplicate the production environment.The customer requires a solution with the least amount of system administration. Which configuration would provide the best solution？（） Implement one DS4400 at each location connected to the fibre link and use Remote Volume Mirror （RVM）.。 Implement a DS4400 at each location using FlashCopy option and use host based replication to synchronize the sites.。 Implement a switched fabric using redundant SAN switches with a DS4300 using RVM option at each location.。 Implement a switched fabric using SAN switches connected via ISL with a DS4300 using RVM option at each location.。
失业人员领取失业保险金后，重新就业后，再次失业的，失业保险缴费时间重新计算。
What is true about joining tables through an equijoin? （）
