What does the following JVM argument do?

What does the following JVM argument do?

-Xverbosegclog:${SERVER_LOG_ROOT}/verbose.m%d.7/18/16M%S.%pid.txt,20,10000
A . It changes the default values for verbosegc logging.
B . It changes the default location of the verbosegc logging.
C . It configured verbosegc logging once it has already been enabled.
D . It sets the default value for enabling and configuring verbosegc logging.

View Answer

Answer: B

Explanation:

-Xverbosegclog[: <file> [,<X>,<Y>]]

Causes -verbose:gc output to be written to the specified file.

If it cannot create the file (for example, if an invalid filename is passed into the command), it will redirect the output to stderr.

If you specify <X> and <Y> the -verbose:gc output is redirected to <X> files, each containing <Y> GC cycles.

The dump agent tokens can be used in the filename. See Dump agent tokens for more information. If you do not specify <file>, verbosegc.%Y%m%d.%H%M%S.%pid.txt is used.

example: -Xverbosegclog:newgclogname.log,7,10000