log4j Online Quiz

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

A - log4j is a reliable, fast and flexible logging framework (APIs) written in Java, which is distributed under the Apache Software License.

B - log4j has been ported to the C, C++, C#, Perl, Python, Ruby, and Eiffel languages.

C - log4j is highly configurable through external configuration files at runtime.

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 is correct about filter in Appender?

A - The Filter objects can analyze logging information beyond level matching and decide whether logging requests should be handled by a particular Appender or ignored.

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

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

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

Q 4 - Which of the following level designates informational messages that highlight the progress of the application at coarse-grained level?

A - DEBUG

B - ERROR

C - FATAL

D - INFO

Q 5 - What is the purpose of F 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 6 - Which of the following is correct about org.apache.log4j.HTMLLayout class?

A - It provides the time elapsed from the start of the application before a particular logging event was generated.

B - It provides the name of the thread that invoked the logging request.

C - It provides the level associated with this logging request.

D - All of the above.

Q 7 - Which of the following set the location information for the logging event 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 at the end of each month and at the beginning of the next month?

A - '.' yyyy-MM

B - '.' yyyy-MM-dd

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

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

Q 9 - How will you put the logs in database using log4j??

A - Using JDBCAppender

B - Using RollingFileAppender

C - Using FileAppender

D - None of the above.

Q 10 - The Filter objects can analyze logging information beyond level matching and decide whether logging requests should be handled by a particular Appender or ignored.

A - true

B - false