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EC-Council: Computer Hacking Forensic Investigator(CHFI-V10)
Module 11 : Database Forensics
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Bookmark this Question		QID: 204
While collecting active transaction logs using SQL Server Management Studio, the query Select * from ::fn_dblog(NULL, NULL) displays the active portion of the transaction log file. Here, what does assigning NULL values imply?
A:    Start and end points for log sequence numbers are specified
B:    Start and end points for log files are not specified
C:    Start and end points for log files are specified
D:    Start and end points for log sequence numbers are not specified
Explanation: The fn_dblog() function accepts two parameters: The first is starting log sequence number, or LSN. You can also specify NULL, which means it will return everything from the start of the log. The second is the ending LSN. You can also specify NULL, which means you want to return everything to the end of the log.