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161、
161.Note the following points describing various utilities in Oracle Database 11g: 1. It enables the high-speed transfer of data from one database to another 2. It provides a complete solution for the backup, restoration and recovery needs of the entire database 3. It enables the loading of data from an external file into table of an Oracle Database 4. It provides a tape backup management for the Oracle ecosystem Which point describes Oracle Secure Backup? A. 1 B. 2 C. 3 D. 4 E. 1,2 and 4 F. 1,2,3, and 4
Answer: D
162、
162.Examine the values for the following initialization parameters: FAST_START_MTTR_TARGET=0 LOG_CHECKPOINT_INTERVAL=0 Which two will be the implications of these values in your database? (Choose two.) A. The SGA advisor will be disabled B. The MTTR advisor will be disabled C. Automatic checkpoint tuning will be disabled D. Checkpoint information will not be written to the alert log file
Answer: BC
163、
163.You have an ORDERS table with the following structure: Name Null? Type --------- ------- ---------------- OID NUMBER(6) ODATE DATE CCODE NUMBER(6) OAMT NUMBER(10,2) The table has data in the ODATE column for all rows. Many orders are placed in a single day. You need to ensure that the ODATE column must contain data for every order in future. Which method would serve the purpose? A. Modify the column using the ALTER TABLE ... MODIFY command. B. Add a UNIQUE constraint to the column using the ALTER TABLE ... ADD CONSTRAINT command. C. Add a NOT NULL constraint to the column using the ALTER TABLE ... ADD CONSTRAINT command. D. Add a PRIMARY KEY constraint to the column using the ALTER TABLE ... ADD CONSTRAINT command.
Answer: A
164、
164.Identify two situations in which you can use Data Recovery Advisor for recovery. (Choose two.) A. The database files are corrupted when the database is open B. The user has dropped an important table that needs to be recovered C. The archived redo log files are missing for which the backup is not available D. The database is not opening because the required database files are missing
Answer: AD
165、
You have two tables with referential integrity enforced between them.
You need to insert data to the child table first because it is going to be a long transaction and data for the parent table will be available in a later stage, which can be inserted as part of the same transaction.
View the Exhibit to examine the commands used to create tables.
Which action would you take to delay the referential integrity checking until the end of the transaction? A. Set the constraint to deferred before starting the transaction B. Alter the constraint to NOVALIDATE state before starting the transaction C. Enable the resumable mode for the session before starting the transaction D. Set the COMMIT_WAIT parameter to FORCE_WAIT for the session before starting the transaction
Answer: A
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原文地址：http://www.cnblogs.com/huanhuanang/p/5366487.html
