Oracle 11g OCP认证052考试题库（67）-CUUG内部学员版
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我要咨询11g版本的OCP考试持续了好几年，一直比较稳定，直到2018年4月份左右，052考试不断的出现新的考题，虽然我们收集整理了不少，但新题还是难避免，这样出现一部分新题，我们收集一部分，持续了不短的时间。
对于这些052考试新题，不仅老师给出了答案，学员也积极的找资料、查文档，形成了一份内部综合版本，通过分数非常高，一起渡过这次052考试的难关。
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052考试题-67（OCP考试题库讨论群：101-5267-481 验证：ocp）
Examine these SQL statements and their output:
SQL> select name,value
2 from v$parameter
3 where name like 'undo%';
NAME VALUE
-------------------- -------------------
undo_management AUTO
undo_tablespace UNDO
undo_retention 900
SQL> select contents,retention
2 from DBA_tablespaces
3 where tablespace_name='UNDO';
CONTENTS RETENTION
-------------- --------------------
UNDO NOGUARANTEE
SQL> select blocks,autoextensible,maxblocks
2 from DBA_data_files
3 Where tablespace_name='UNDO';
BLOCKS AUT MAXBLOCKS
------------- -------- -------------
6400 YES 64000
Which two are true?
A)Inactive UNDO will be retained as long as possible within the limits of the current size of the UNDO tablespace.
B)The UNDO tablespace can grow automatically if there is not enough space to retain active UNDO.
C)Active UNDO will be retained as long as needed by transactions.
D)Inactive UNDO will never be retained for more than 15 minutes.
E)Inactive UNDO will always be retained for at least 15 minutes.
Answer: BC
