Apache Related Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Apache Related Interview Questions

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Explain why to use Apache Log4j?

what is the best way to migrate from java.util logging to log4j?

what does WARN and TRACE level indicates in log4j?

what are the two static methods for obtaining a logger object?

why do you get multiple copies of the message in log file sometime?

what is package level logging in log4j?

what are the format characters used in log4j?

what is layouts in log4j?

what are the logging methods provided by logger class?

Inside logger component what are the different log levels?

What is Camel?

Is camel an esb?

Does camel link method invocation of bean at compile time or runtime?

What is the content of Exchange in camel?

What jars do I need?

Un-Answered Questions { Apache Related }

Inside logger component what are the different log levels?

How we can deploy file on server using ant?

102

How you can compile, jar and run into ant command prompt?

What is the purpose of xssfcellstyle class in apache poi?

what is the best way to migrate from java.util logging to log4j?

What are the features of apache solr?

137

What is nifi flowfile?

What is camel exchange? Explain its structure?

In which language apache ant is written?

Explain how to modify properties in ant?

Is apache tapestry free/open source?

Explain the concepts of ant?

What are eips in apache camel?

Can I use the same component multiple times in one template?

List the various configuration files used by apache solr?

118

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