Related Questions

Oracle maintains a System Change Number (SCN) which is a database-wide value that is incremented by Oracle whenever database changes are made.
A True
B False
What Oracle backup and recover file contains user and system data?
A Control file
B Datafile
C OnLine ReDo file
D Offline ReDo file
In a certain sock drawer, there are 4 pairs black socks, 3 pairs of back socks, 3 pairs of gray of gray socks and 2 pairs of corage socks. It socks removed at random without replaced, what is the minimum number of socks that must removes in order to ensure that two socks of the the same color have been removed?
A 11
B 4
C 3
D 7
If 1/2 of the air in a tank is removed with each stroke of a vacuum pump, what fraction of the original amount of air has been removed after four strokes ?
A 15/16
B 7/8
C 1/4
D 1/8
The average of five numbers is 25. After one if the numbers is removed, the average of the remaining is 31. What number has been removed?
A 7
B 6
C 4
D 1
If 1/2 of the air in a tank is removed with each stroke of a vacuum pump,what fraction of the original amount of air has been removed after 4 strokes?
A 15/16
B 7/8
C 1/4
D 1/8
What is the best data type definition for Oracle when a field is alphanumeric and has a length that can vary?
A VARCHAR2
B CHAR
C LONG
D NUMBER
What is the best data type definition for Oracle when a field is alphanumeric and has a fixed length?
A VARCHAR2
B CHAR
C LONG
D NUMBER
What type of failure occurs when Oracle fails due to an operating system or computer hardware failure?
A Application failure
B Instance Failure
C Media Failure
D Rollback failure
Oracle will let you define Notepad as your default editor, and whenever you type NOTEPAD, SQL*Plus will invoke Notepad.
A True
B False

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