Must begin with either a number or a letter.
Must be 1-30 characters long.
Should not be an Oracle Server reserved word.
Must contain only A-Z, a-z, 0-+, _, *, and #.
Must contain only A-Z, a-z, 0-9, _, $, and #.
Must begin with a letter.
第1题：
A frame with two，or sometimes four，arms through which are threaded the guidelines and which is used to keep the drill stem and bit in line with the center opening in the temporary guide base is the ______.
A.drill stem guide
B.guide frame
C.drill string frame
D.casing guide
第2题：
Which two are correct steps in taking a binary backup of MyISAM tables?（）
第3题：
A. Must begin with either a number or a letter.
B. Must be 1-30 characters long.
C. Should not be an Oracle Server reserved word.
D. Must contain only A-Z, a-z, 0-+, _, *, and #.
E. Must contain only A-Z, a-z, 0-9, _, $, and #.
F. Must begin with a letter.
第4题：
Which is the correct command to put the database in ARCHIVELOG mode？（）
第5题：
Which is the correct command to back up the database， back up the archived redo logs， and then remove the backed-up archived redo logs？（）
第6题：
Which four are correct guidelines for naming database tables? （）
第7题：
You are working as a DBA on the decision support system. There is a business requirement to track and store all transactions for at least three years for a few tables in the database. Automatic undo management is enabled in the database. Which configuration should you use to accomplish this task？（）
第8题：
You must track all transactions that modify certain tables in the sales schema for at least three years.Automatic undo management is enabled for the database with a retention of one day.Which two must you do to track the transactions?（）
A. Enable supplemental logging for the database.
B. Specify undo retention guarantee for the database.
C. Create a Flashback Data Archive in the tablespace where the tables are stored.
D. Create a Flashback Data Archive in any suitable tablespace.
E. Enable Flashback Data Archiving for the tables that require tracking
第9题：
The three tasks shown have been completed in order to configure a naming method： Task 1： Installed on server and client： Oracle Net Services， TCP/IP， TCP/IP protocol adaptor Task 2： Started default listener on port 1521 Task 3： Added global database name to the listener.ora file. Which naming method was configured？（）
第10题：
You need to improve the performance of the tempdb database on SQL1.Which two actions should you perform？（）