log4j Online Quiz
Following quiz provides Multiple Choice Questions (MCQs) related to log4j Framework. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.
Q 1 - Which of the following is correct about Logger object?
A - The top-level layer of log4j architecture is the Logger which provides the Logger object.
Answer : C
Explanation
Both of the above options are correct.
Q 2 - Which of the following is correct about log4j.properties?
B - By default, the LogManager looks for a file named log4j.properties in the CLASSPATH.
Answer : C
Explanation
Both of the above options are correct.
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)
Answer : C
Explanation
public void fatal(Object message) of Logger class prints messages with the level Level.FATAL.
Q 4 - Which of the following level designates finer-grained informational events than the DEBUG?
Answer : B
Explanation
TRACE − Designates finer-grained informational events than the DEBUG.
Q 5 - What is the purpose of t character used in the conversionPattern of PatternLayout object?
A - Outputs the platform dependent line separator character or characters.
B - Used to output the priority of the logging event.
D - Used to output the name of the thread that generated the logging event.
Answer : D
Explanation
t − Used to output the name of the thread that generated the logging event.
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.
Answer : A
Explanation
%20c − Left pad with spaces if the category name is less than 20 characters long.
Q 7 - Which of the following set title for the HTML file using HTMLLayout?
A - HTMLLayout.setContentType(String)
B - HTMLLayout.setLocationInfo(String)
Answer : C
Explanation
HTMLLayout.setTitle(String) − Sets the title for the HTML file. Default is log4j Log Messages.
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?
Answer : B
Explanation
'.' yyyy-ww − Roll over on the first day of each week depending upon the locale.
Q 9 - How will you put the logs in database using log4j??
Answer : A
Explanation
The log4j API provides the org.apache.log4j.jdbc.JDBCAppender object, which can put logging information in a specified database.
Q 10 - The Logger object is responsible for publishing logging information to various preferred destinations such as a database, file, console, UNIX Syslog, etc.
Answer : B
Explanation
false − The Appender object is responsible for publishing logging information to various preferred destinations such as a database, file, console, UNIX Syslog, etc.
