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 log4j objects are responsible for formatting logging information in different styles?
Answer : C
Explanation
layouts − Responsible for formatting logging information in different styles.
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 error mode?
A - public void debug(Object message)
B - public void error(Object message)
Answer : B
Explanation
public void error(Object message) of Logger class prints messages with the level Level.ERROR.
Q 4 - Which of the following level designates informational messages that highlight the progress of the application at coarse-grained level?
Answer : D
Explanation
INFO − Designates informational messages that highlight the progress of the application at coarse-grained level.
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 - Which of the following is correct about org.apache.log4j.HTMLLayout class?
Answer : C
Explanation
Both of the above options are correct.
Q 7 - What is the purpose of Filename configuration of FileAppender?
A - output stream to the file being flushed with each append operation.
B - to set the platform-specific encoding scheme.
Answer : D
Explanation
Filename − The name of the log file.
Q 8 - What is the purpose of DatePattern configuration of DailyRollingFileAppender?
A - to set the critical size of the file above which the file will be rolled.
B - to set the number of backup files to be created.
Answer : C
Explanation
DatePattern − This indicates when to roll over the file and the naming convention to be followed. By default, roll over is performed at midnight each day.
Q 9 - The Appender object is responsible for publishing logging information to various preferred destinations such as a database, file, console, UNIX Syslog, etc.
Answer : B
Explanation
true − The Appender object is responsible for publishing logging information to various preferred destinations such as a database, file, console, UNIX Syslog, etc.
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.
