Which statement is true about loading data using the conventional path of SQL*Loader（）A、Redo is not generated while performing conventional path loads.B、Only PRIMARY KEY， UNIQUE KEY， and NOT NULL constraints are checked.C、No exclusive locks are acquired w

第1题：

SQL*Loader reads a set of records from a file， generates INSERT commands， and passes them to the Oracle kernel. Oracle then finds places for those records in free blocks in the table and updates any associated indexes. Which SQL*Loader mode is used in this scenario？（）

• A、direct-path load
• B、conventional path load

第2题：

You are using flat files as the data source for one of your data warehousing applications. To optimize the application performance， you plan to move the data from the flat files to clustered tables in an Oracle database.While migrating the data， you want to have minimal impact on the database performance and optimize the dataload operation.  Which method would you use to load data into the Oracle database（）

• A、Use the external table population.
• B、Use the Oracle Data Pump export and import utility.
• C、Use the conventional path data load of the SQL*Loader utility.
• D、Use the INSERT INTO...SELECT command to load the data

第3题：

第4题：

Which two statements about the SQL Management Base (SMB) are true? （）(Choose two.)

• A、It contains only SQL profiles generated by SQL Tuning Advisor.
• B、It stores plans generated by the optimizer using a stored outline.
• C、It is part of the data dictionary and stored in the SYSAUX tablespace.
• D、It is part of the data dictionary and stored in the SYSTEM tablespace.
• E、It contains the statement log, the plan history, plan baselines, and SQL profiles.

第5题：

Which two statements are true about the primary key constraint in a table？ （）

• A、It is not possible to disable the primary key constraint.
• B、It is possible to have more than one primary key constraint in a single table.
• C、The primary key constraint can be referred by only one foreign key constraint.
• D、The primary key constraint can be imposed by combining more than one column.
• E、The non-deferrable primary key constraint creates an unique index on the primary key column if it is not already indexed.

第6题：

Which statement is true about a routing table?（）

• A、It contains routers learned dynamically only
• B、It finds the best path to each destination by using a modified shortest-path-first calculation
• C、It contains only active BGP routes
• D、It contains all accepted routes to all destinations

第7题：

Which statement is true about a routing table?（）

• A、It contains routes learned dynamically only.
• B、It finds the best path to each destination by using a modified shortest-path-first calculation.
• C、It contains only active BGP routes.
• D、It contains all accepted routes to all destinations.

第8题：

第9题：

Which two statements are true about constraints? （）

• A、The UNIQUE constraint does not permit a null value for the column.
• B、A UNIQUE index gets created for columns with PRIMARY KEY and UNIQUE constraints.
• C、The PRIMARY KEY and FOREIGN KEY constraints create a UNIQUE index.
• D、The NOT NULL constraint ensures that null values are not permitted for the column.

第10题：

Which two statements are true about a bitmap index？ （）

• A、It is recommended for the columns that have unique values.
• B、It can be converted to a B-tree index by using the ALTER INDEX command.
• C、It has a bitmap segment for each distinct value in the key column， containing a string of bits in which each bit represents the presence or absence of a key column value.
• D、Updating the key column locks the whole bitmap segment that contains the bit for the key value to be updated.