单选题You need to perform certain data manipulation operations through a view called EMP_DEPT_VU, which you previously created. You want to look at the definition of the view (the SELECT statement on which the view was created.) How do you obtain the definit

第1题：

第2题：

Which of the following statements is NOT true about RMAN？（）

• A、It improves usability by enabling you to reuse the scripts to perform recovery operations.
• B、It detects block corruption while restoration and recovery operations.
• C、It enables you to perform block media recovery.
• D、It is capable to recover through unrecoverable operations， with only full database backups.

第3题：

第4题：

You need to perform a block media recovery on the tools01.dbf data file in the SALES database by using Recovery Manager (RMAN). Which two are the prerequisites to perform this operation? （）(Choose two)

• A、You must configure block change tracking file
• B、You must have first level 1 backups for RMAN to restore blocks
• C、You must ensure that the SALES database is mounted or open
• D、You must have full or level 0 backups for RMAN to restore blocks
• E、You must take the tools01.dbf data file offline before you start a block media recovery

第5题：

Server1 contains a folder named D:/Salesdata, which contains important company data. The hardware-monitoring software reports that the disk that contains volume D is in danger of imminent disk failure. You order a replacement disk, but you must wait at least one day for the disk to be delivered. You discover that you do not have a backup of the D:/Salesdata folder because a recent backup was configured incorrectly. You need to back up the D:/Salesdata folder so that you can restore the data if the disk fails. You need to achieve this goal as quickly as possible. What should you do? （）

• A、Perform a normal backup of the D:/Salesdata folder.
• B、Perform an incremental backup of the D:/Salesdata folder.
• C、Perform a differential backup of the D:/Salesdata folder.
• D、Perform a daily backup of the D:/Salesdata folder.
• E、Enable Shadow Copies on volume D:/Configure the shadow copy location as C:/.

第6题：

Which two client requests are captured during database replay Capture?（）

• A、Flashback queries
• B、Shared server requests
• C、Login and logoff activities of sessions
• D、Direct path load of data from external files by using utilities such as SQL *loader
• E、Data definition language (DDL) and data manipulation language (DML) operations

第7题：

You added a PHONE_NUMBER column of NUMBER data type to an existing EMPLOYEES table. The EMPLOYEES table already contains records of 100 employees. Now, you want to enter the phone numbers of each of the 100 employees into the table. Some of the employees may not have a phone number available. Which data manipulation operation do you perform?（）

• A、MERGE
• B、INSERT
• C、UPDATE
• D、ADD
• E、ENTER
• F、You cannot enter the phone numbers for the existing employee records.

第8题：

第9题：

You need to perform certain data manipulation operations through a view called EMP_DEPT_VU, which you previously created. You want to look at the definition of the view (the SELECT statement on which the view was create.) How do you obtain the definition of the view? （）

• A、Use the DESCRIBE command in the EMP_DEPT VU view.
• B、Use the DEFINE VIEW command on the EMP_DEPT VU view.
• C、Use the DESCRIBE VIEW command on the EMP_DEPT VU view.
• D、Query the USER_VIEWS data dictionary view to search for the EMP_DEPT_VU view.
• E、Query the USER_SOURCE data dictionary view to search for the EMP_DEPT_VU view.
• F、Query the USER_OBJECTS data dictionary view to search for the EMP_DEPT_VU view.

第10题：

You suspect unauthorized data manipulation language （DML） operations on a particular table. You want to track users who are performing the transactions and the values used in the transactions. Also， you plan to transfer these values to another table for analysis.  How would you achieve this？（）

• A、by using triggers
• B、by using external tables
• C、by using anonymous PL/SQL blocks
• D、by auditing all DML operations on the table