log4j Online Quiz


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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.

Questions and Answers

Q 1 - Which of the following log4j objects are responsible for formatting logging information in different styles?

A - loggers

B - appenders

C - layouts

D - None of the above.

Answer : C

Explanation

layouts − Responsible for formatting logging information in different styles.

Answer : D

Explanation

public void info(Object message) of Logger class prints messages with the level Level.INFO.

Q 4 - Which of the following level designates potentially harmful situations?

A - OFF

B - TRACE

C - WARN

D - ALL

Answer : C

Explanation

WARN − Designates potentially harmful situations.

Answer : C

Explanation

r − Used to output the number of milliseconds elapsed from the construction of the layout until the creation of the logging event.

Answer : B

Explanation

bufferedIO − This flag indicates whether we need buffered writing enabled. By default, it is set to false.

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

Answer : B

Explanation

'.' yyyy-ww − Roll over on the first day of each week depending upon the locale.

Answer : C

Explanation

sql − Specifies the SQL statement to be executed every time a logging event occurs. This could be INSERT, UPDATE, or DELETE.

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

A - false

B - true

Answer : B

Explanation

true − By default, the LogManager looks for a file named log4j.properties in the CLASSPATH.

log4j_questions_answers.htm
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