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

Answer : A

Explanation

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

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

encoding − It is possible to use any character-encoding. By default, it is the platform-specific encoding scheme.

Q 8 - Which of the following DatePattern configuration of DailyRollingFileAppender rolls over the logs at the top of every hour?

A - '.' yyyy-MM

B - '.' yyyy-MM-dd

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

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

Answer : D

Explanation

'.' yyyy-MM-dd-HH − Roll over at the top of every hour.

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 - The log4j.properties file is a log4j configuration file which keeps properties in key-value pairs.

A - false

B - true

Answer : B

Explanation

true − The log4j.properties file is a log4j configuration file which keeps properties in key-value pairs. By default, the LogManager looks for a file named log4j.properties in the CLASSPATH.


log4j_questions_answers.htm

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