For which two constraints does the Oracle Server implicitly create a unique index? （）

A . Close all sessions performing queries using database links B . running the database in shared server mode C . The database on which the workload is replayed has to be a restore of the original database to a specific SCN D . setting up the directory to capture the workload

A . the table of 4096 elements that map the respective VLAN to STP instance number B . VTP version C . configuration revision number D . native VLAN ID

A .  If none of the authentication servers that are configured for the current authentication mode responds to an authentication request， the DCNM-LAN server falls back to localauthentication. B .  DCNM-LAN only supports TACACS+. C .  Each DCNM-LAN server will have the same device credentials. D .  Administering DCNM-LAN authentication settings requires an authentication license. E .  DCNM-LAN server users are local to the DCNM-LAN server.

A . convert any date literal to a date B . convert any numeric literal to a date C . convert any date to a character literal D . format 'January 10 1999' for input E . format '10-JAN-99' to 'January 10 1999'

A .  response.set Header （“X-MyHeader”. “34”）： B .  response.addHeader （“X-MyHeader”. “34”）： C .  response. Set Header （new Http Header （“X-MyHeader”. “34”））： D .  response.addHeader（new Http Header （“X-MyHeader”. “34”））： E .  response. addHeader （new Servlet Header （“X-MyHeader”. “34”））： F .  response. setHeader （new Servlet Header （“X-MyHeader”， “34”））：

A .  response.get Writer （） B .  response.get Output Stream （） C .  response.get Output Writer （） D .  response.get Writer （）.get Output Stream（） E .  response.get Writer （Writer.OUTPUT_TEXT）

A . No flashback is possible to bring back the ITEM table. B . The ORDER table is dropped along with the ITEM table. C . The dependent referential integrity constraints in the ORDER table are disabled. D . The dependent referential integrity constraints in the ORDER table are removed. E . The table definition of the ITEM table and associated indexes are placed in the recycle bin.

A . setting idle timeout limits on resource plans B . saving storage space by using compressed backup sets C . creating jobs that will run automatically at a scheduled time D . assigning priorities to jobs to manage access to system resources E . creating alerts to perform notification when tablespaces are low on available space resource

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.

A . the table of 4096 elements that map the respective VLAN to STP instance number B . VTP version C . configuration revision number D . native VLAN ID

A . nvarchar（100） NULL B . nvarchar（max） NOT NULL C . nvarchar（100） NOT NULL D . nvarchar（100） SPARSE NULL

A . Constraint names must start with SYS_C B . All constraints must be defines at the column level. C . Constraints can be created after the table is created. D . Constraints can be created at the same time the table is created. E . Information about constraints is found in the VIEW_CONSTRAINTS dictionary view.

A . Interactive and Network mode. B . Attended and unattended mode. C . Diskless and floppy mode. D . User level and administrator level mode.

A . Flashback Database must be enabled. B . Undo retention guarantee for the database must be configured. C . EXECUTE privilege on the DBMS_FLASHBACK package must be granted to the user flashing back transaction. D . Supplemental logging must be enabled. E . Recycle bin must be enabled for the database. F . Block change tracking must be enabled tor the database.

A . Macintosh workstation with Cisco IP Phone Agent   B . Linux workstation running CAD with IP Communicator   C . Linux workstation running CAD with Cisco Unified IP Phone 7960G   D . Citrix Terminal running CAD with IP Communicator   E . Citrix Terminal with Cisco IP Phone Agent   F . Windows workstation running CAD with Media Termination optio

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.

A . No flashback is possible to bring back the ITEM table. B . The ORDERS table is dropped along with the ITEM table. C . The dependent referential integrity constraints in the ORDERS table are disabled. D . The dependent referential integrity constraints in the ORDERS table are removed. E . The table definition of the ITEM table and associated indexes are placed in the recycle bi

A . audit VoWLAN cell edge coverage B . verify RFID tag coverage by four access points at -75 dBm C . audit microwave oven interference D . audit 802.11a channel 36 utilization E . create test scripts for 802.11n bonded channel throughput test

A . The user has dropped an important table that needs to be recovered. B . The database files are corrupted when the database is open. C . You are not able to start up the database instance because the required database files are missing. D . The archived log files are missing for which backup is not available.

A .  security services B .  TACACS+services C .  Mpls services D .  Routing services E .  Ppp0e services F .  Poe service

A . response.getWriter（） B . response.getOutputStream（） C . response.getOutputWriter（） D . response.getWriter（）.getOutputStream（） E . response.getWriter（Writer.OUTPUT_TEXT）

A .  response.getWriter（ ） B .  response.getOutputStream（ ） C .  response.getOutputWriter（ ） D .  response.getWriter（ ） .getOutputStream（ ） E .  response.getWriter（Writer.OUTPUT_TEXT（ ）

A．Nike is the best brand of athletic footwear and sports clothing. B．The managers of Nike, Bowerman and Knight are both athletes. C．The company let Jordan endorse Nile's shoes. D．The diligence of the company managers. 此题为多项选择题。