[单选] Which is the correct description of a pinned buffer in the database buffer cache（）

论述铰孔时铰削余量过大的影响。 人身安全保护令可以包括下列措施（） 禁止被申请人实施家庭暴力。 禁止被申请人骚扰、跟踪、接触申请人及其相关近亲属。 责令被申请人迁出申请人住所。 You are about to plug a multi-terabyte non-CDB into an existing multitenant container database (CDB). The characteristics of the non-CDB are as follows: -Version: Oracle Database 11g Release 2 (11.2.0.2.0) 64-bit -Character set: AL32UTF8 -National character set: AL16UTF16 -O/S: Oracle Linux 6 64-bit The characteristics of the CDB are as follows: -Version: Oracle Database 12c Release 1 64-bit -Character Set: AL32UTF8 -National character set: AL16UTF16 -O/S: Oracle Linux 6 64-bit Which technique should you use to minimize down time while plugging this non-CDB into the CDB?（） Transportable database。 Transportable tablespace。 Data Pump full export/import。 The DBMS_PDB package。 RMAN。 You are an Enterprise Architect in a large IT organization. Your organization has deployed applications on a variety of containers such as WLS， WebSphere， and JBoss.  Why would you consider consolidating on a single type of container （instead of mix） ？ （）  Guarantee of higher application performance and reliability if the transactions are flowing between instances of the same container type.。 Easier to build a Shared Services infrastructure that can provide best practices， tools and expertise around HA/Management.... with a single type of container than a mix of multiple types。  You’ll save on hardware costs with a homogenous environment。  It’s a necessary step in our move toward adopting SOA。 记忆的基本环节包括（） 识记。 保持。 再认。 回忆。 Which is the correct description of a pinned buffer in the database buffer cache（）