- Interview Questions and Answers for 'Application support]' | Search Interview Question

- Interview Questions and Answers for 'Application support]' - 3 question(s) found - Order By Rating

Q1. Explain Application / Server architecture being used in your project ?

or

Explain your project architecture ?

Ans. We are using cluster of Web servers and Application servers. Load Balancer is used to manage the load between them. Down the layer we have middleware server and then DB server to access database.

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Q2. How do you monitor the server resources if inadvertently high traffic is reported ?

Ans. We use SAR command for that purpose. We also have GUI system monitoring tool to keep real time check of requests, load and memory usage.

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What is the purpose of String Pool ? Don't you think it's a performance overhead to have unnecessary check for string in string pool ?

Is it necessary to specify "employeeId" with @PathParam("employeeId") in this case,

@Path("/{employeeId}")
public String employeeInfo(@PathParam("employeeId") Long employeeId){
}

Q3. Have you ever faced any problem due to caching?

Ans. Yes , sometime we receive issues related to outdated pages being rendered to the user. In those cases we clear the cache and then try to investigate the reason for that. Sometime the issue is due to comparatively high refresh interval. In those cases we reduce the cache refresh interval.

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There is a server which is 90% full, I need to increase the space. How can I do it ?

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Explain Application / Server architecture being used in your project ?

or

Explain your project architecture ?

How do you monitor the server resources if inadvertently high traffic is reported ?

What is Hot Deployment ?

Difference between Hot and Cold Deployment ?

What are the steps you follow if you receive an application outage ticket ?

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