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 }

Explain using ant and give an small example?

How do I make a link popup a new window?

Why do we need @script in apache tapestry?

Why use apache storm?

How does tapestry compare to other frameworks?

In log4j how can you log into the database?

What are components in apache camel?

Have you exposed a webservice endpoint using apache camel?

What is the purpose of hssfsheet class in apache poi?

Is tapestry a jsp tag library?

110

How we can create a jar using ant?

Can you define highlighting?

164

What are endpoints in apache camel?

what is the command to write your logging information into a file?

What is phonetic filter?

146

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