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Interview Questions and Answers for 'Bluecoat' - 2 question(s) found - Order By Newest

Frequently asked to experienced developers. Recently asked in many US interviews.
  Q1. What is database deadlock ? How can we avoid them?Database
Ans. When multiple external resources are trying to access the DB locks and runs into cyclic wait, it may makes the DB unresponsive.

Deadlock can be avoided using variety of measures, Few listed below -

Can make a queue wherein we can verify and order the request to DB.

Less use of cursors as they lock the tables for long time.

Keeping the transaction smaller.

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   Like         Discuss         Correct / Improve     java   database   architecture     Asked in 7 Companies      expert        frequent


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 Q2. What is XSS or Cross site scripting ?Security
Ans. XSS or cross site scripting is a javascript vulnerability in web applications. The easiest way to explain this is with a case when the user enters a script in the client side input fields and that input gets processed without getting validated. This leads to untrusted data getting saved and executed on the client side.

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   Like         Discuss         Correct / Improve          Asked in 3 Companies


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