log4j Online Quiz

Q 1 - Which of the following is correct about log4j?

A - The target of the log output as well as the writing strategy can be altered by implementations of the Appender interface.

B - It is fail-stop.

C - log4j does not guarantee that each log statement will be delivered to its destination.

D - All of the above.

Q 2 - Which of the following is correct about target in Appender?

A - Appender uses the target and the conversion pattern associated with them to format the logging information.

B - The target may be a console, a file, or another item depending on the appender.

C - The target is required to control the filtration of the log messages.

D - Appender can have a target associated with it independent of the logger level.

Q 3 - Which of the following method of logger print a log message in fatal mode?

A - public void debug(Object message)

B - public void error(Object message)

C - public void fatal(Object message)

D - public void info(Object message)

Q 4 - What is the purpose of c character used in the conversionPattern of PatternLayout object?

A - Used to output the category of the logging event.

B - Used to output the fully qualified class name of the caller issuing the logging request.

C - Used to output the date of the logging event.

D - Used to output the file name where the logging request was issued.

Q 5 - What is the purpose of m character used in the conversionPattern of PatternLayout object?

A - Used to output location information of the caller which generated the logging event.

B - Used to output the line number from where the logging request was issued.

C - Used to output the application supplied message associated with the logging event.

D - Used to output the method name where the logging request was issued.

Q 6 - What is the intent of %.20c format modifier?

A - Left pad with spaces if the category name is less than 20 characters long.

B - Right pad with spaces if the category name is less than 20 characters long.

C - Truncate from the beginning if the category name is longer than 20 characters.

D - None of the above.

Q 7 - Which of the following set title for the HTML file using HTMLLayout?

A - HTMLLayout.setContentType(String)

B - HTMLLayout.setLocationInfo(String)

C - HTMLLayout.setTitle(String)

D - None of the above.

Q 8 - Which of the following DatePattern configuration of DailyRollingFileAppender rolls over the logs on the first day of each week depending upon the locale?

A - '.' yyyy-MM-dd-HH-mm

B - '.' yyyy-ww

C - '.' yyyy-MM-dd-a

D - '.' yyyy-MM-dd-HH

Q 9 - What is the purpose of driver configuration of JDBCAppender?

A - to set the driver class to the specified string.

B - to set the database password.

C - to specify the SQL statement to be executed every time a logging event occurs.

D - None of the above.

Q 10 - By default, the LogManager looks for a file named log4j.properties in the CLASSPATH.

A - false

B - true