Explain why to use Apache Log4j?

5

Explain whether log4j is a thread safe?

5

what are the format characters used in log4j?

5

what is package level logging in log4j?

5

In log4j how can you log into the database?

5

what is layouts in log4j?

5

what does .class mean in log4j context?

5

what are Appenders in Log4j?

5

what are the three principal components of Log4j?

5

what is the difference between Threshold and LevelRangeFilter in log4j?

5

Explain whether a log output format can be customized?

5

Inside logger component what are the different log levels?

5

what is the role of filter in log4j?

5

what are the system properties checked by log4j?

5

how can you get multiple processes to log to the same file?

5