Oracle认证考试1z0-040章节练习(2019.05.09)

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1

View the Exhibit and examine the highlighted alert. You have received an alert with the Category specified as Snapshot Too Old. Which page would you open from the Advisor Central page to determine the system recommendations to avoid such alerts in future?（）

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2 You have 100 segments in the USERS tablespace. You realize that the USERS tablespace is running low on space. You can use Segment Advisor to（）.

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3 You need to ensure that the database users should be able to use the various flashback query features in order to go back in time by four hours. What would you do to achieve this?（）

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4 Which two statements regarding the FLASHBACK_TRANSACTION_QUERY view are correct?（）

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5 An online tablespace, TEST_TBS, is full and you realize that no server-managed tablespace threshold alerts were generated for the TEST_TBS tablespace. What could be the reason, if the TEST_TBS tablespace does not include autoextensible data files?（）

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6 You want to perform the database backup when user activity on your system is low, such as between 12:00 a.m. and 2:00 am. Which command terminates with an error if the backup is not complete at the end of the specified duration?（）

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7

View the Exhibit and examine the recommendation graph provided for a test database by the Undo Advisor.The graph recommends that the size of undo tablespace should be set to（）.

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8 You have 100 segments in the USERS tablespace. You get an alert that the USERS tablespace is running low on space. You decide to shrink some segments. Which option would you use to determine which segments to shrink?（）

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9 The system was running a normal workload during the last 24 hours. You need to ensure that with the same workload you should be able to flashback tables by three hours. What would you do to find the system recommendations for the undo retention period and the undo tablespace size?（）

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10 You have three production databases, HRDB, FINDB, and ORGDB, that use the same ASM instance. At the end of the day, you execute the following command on the ASM instance to shut down: SQL> shutdown immediate; What is the result of executing this command?（）

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