多选题Which  statements are true regarding a tablespace（）AIt can span multiple databases.BIt can consist of multiple data files.CIt can contain blocks of different sizes.DIt can contain segments of different sizes.EIt can contain a part of a nonpartitioned s

第1题：

Which statement about windows and blocks is true?（）

• A、Transaction management is block-oriented rather than window-oriented. 
• B、Forms automatically navigates to an item located in an activated window. 
• C、A window may contain multiple blocks, but each block can only span one window. 
• D、A window can contain multiple canvases, and an item can be located on multiple canvases. 

第2题：

Which statement describes a security zone?（）

• A、A security zone can contain one or more interfaces.
• B、A security zone can contain interfaces in multiple routing instances.
• C、A security zone must contain two or more interfaces.
• D、A security zone must contain bridge groups.

第3题：

Which two statements correctly describe the relation between a data file and the logical databasestructures（）

• A、An extent cannot spread across data files.
• B、A segment cannot spread across data files.
• C、A data file can belong to only one tablespace.
• D、A data file can have only one segment created in it.
• E、A data block can spread across multiple data files as it can consist of multiple operating system （OS） blocks.

第4题：

What is true regarding a shared， server-side parameter file for a Real Application Cluster database？ （）

• A、It can contain parameters with distinct values for each distance.
• B、It can contain only parameters with identical values for each instance.
• C、It must contain an IFILE parameter for each instance’s individual parameter file.
• D、It must be located in the default location for the primary instance’s parameter file.

第5题：

Which three statements about subqueries are true? （）

• A、A main query can have more than one subquery.
• B、A subquery can have more than one main query.
• C、The subquery and main query must retrieve data from the same table.
• D、The subquery and main query can retrieve data from different tables.
• E、Only one column or expression can be compared between the subquery and main query.
• F、Multiple columns or expression can be compared between the subquery and main query.

第6题：

Which two characteristics are true of IVRs？ （）

• A、 They are known as fabric routing
• B、 They cannot span multiple switches
• C、 Their connectivity is supported by Layer 2
• D、 They enable devices in different VSAN fabrics to communicate
• E、 They require that multiple switch fabrics be merged before they can function

第7题：

Which  statements are true regarding a tablespace（）

• A、It can span multiple databases.
• B、It can consist of multiple data files.
• C、It can contain blocks of different sizes.
• D、It can contain segments of different sizes.
• E、It can contain a part of a nonpartitioned segment

第8题：

Which three statements are true regarding subqueries?（）

• A、Subqueries can contain GROUP BY and ORDER BY clauses 
• B、Main query and subquery can get data from different tables 
• C、Main query and subquery must get data from the same tables 
• D、Subqueries can contain ORDER BY but not the GROUP BY clause 
• E、Only one column or expression can be compared between the main query and subquery
• F、 Multiple columns or expressions can be compared between the main query and subquery

第9题：

Which two statements are true regarding the WebLogic domain?（）

• A、A WebLogic domain can have more than one Administration server.
• B、A WebLogic domain has at least one WebLogic server.
• C、A WebLogic domain can have at the most one cluster.  
• D、A WebLogic domain can cross multiple physical machines.  
• E、Each WebLogic domain is associated with a different Node Manager.

第10题：

Which three statements are true regarding single-row functions？（）

• A、 They can accept only one argument.
• B、 They can be nested up to only two levels.
• C、 They can return multiple values of more than one data type.
• D、 They can be used in SELECT， WHERE， and ORDER BY clauses.  
• E、 They can modify the data type of the argument that is referenced.
• F、 They can accept a column name， expression， variable name， or a user-supplied constant as arguments.