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
The __________ may be able to specify style information for a particular document. For example, the user may specify a file that contains a style sheet or the user agent may provide an interface that generates a user style sheet.
A author
B user
C user-agent
D none of the mentioned
What is the type of Oracle backup in which all uncommitted changes have been removed from the datafiles?
A Full backup
B Consistent backup
C Inconsistent backup
D Differential backup
Which of the following filename extension suggests that the file is a backup copy of another file?
A .txt
B .com
C .bas
D .bak
E None of the above
What is sent to the user via HTTP, invoked using the HTTP protocol on the user's computer, and run on the user's computer as an application?
A A Java application
B A Java applet
C A Java servlet
D None of the above is correct
Which of the following extensions suggest that the file is a backup copy?
A .bak
B .bas
C .com
D .txt
E None of these
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
The lost update problem is when User A reads data that have been processed by a portion of a transaction from User B.
A True
B False
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

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