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

Apache Related Interview Questions

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what is Log4j?

what are the system properties checked by log4j?

what is the difference between Threshold and LevelRangeFilter in log4j?

how can you get multiple processes to log to the same file?

what are Appenders in Log4j?

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

what is the role of filter in log4j?

Explain whether a log output format can be customized?

How log4j file is defined?

what are the different types of Appenders?

In log4j how can you log into the database?

what are the other support objects in Log4j?

Explain whether log4j is a thread safe?

what are the three principal components of Log4j?

what does .class mean in log4j context?

Un-Answered Questions { Apache Related }

what is package level logging in log4j?

When should you call the clean-up method?

Define combiner aggregator in apache storm?

What are the important configuration files of solr?

273

What is Composed Message Processor Pattern?

In log4j how can you log into the database?

What is copying field?

119

What command is used to see how to use the bin/solr script?

214

How to submit a form in apache-wicket?

What does a drill query look like?

Can you explain ant functionality?

Can you define build tool?

What is the purpose of xssfcellstyle class in apache poi?

How will you rotate a cell content using apache poi?

Do the attributes get added to content (actual data) when data is pulled by nifi ?

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