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 }

How can I write my own ant task?

How will you rotate a cell content using apache poi?

What are endpoints in apache camel?

How does ant read properties? How to set my property system?

What are various components in apache camel? Which ones have you used?

What is the default error handler in camel?

How did you execute junit test cases for apache camel?

How should do page navigation in apache tapestry?

Can you explain the common configurations in apache storm?

What is redelivery policy in apache camel?

List the various configuration files used by apache solr?

I have to restart my application to pick up changes to specifications and templates, how can I avoid this?

Explain when to use field grouping in storm? Is there any time-out or limit to known field values?

How does nifi support huge volume of payload in a dataflow?

What data is specified by schema?

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