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Interview Questions and Answers

Q391. What do you mean by Jenkins Pipeline?

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Q392. As a user, when you will use the Jenkins with the Selenium and what is the scope of the same?

Jenkins

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Q393. What does CI CD stands for ?

Jenkins

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Q394. What does the Term Blue Ocean mean in Jenkins?

Jenkins

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Q395. What are custom annotations and How can we create one ?

Core Java

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Q396. Why Java has final class ?

Core Java

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Q397. If you are told that we don't have any data in database for last 5 days being populated by

1. a web service
2. that in turn write a message to a queue
3. which is then picked by a consumer
4. and then written to DB by consumer.

How would you go about debugging this issue ?

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Q398. Do we have references for the objects that are eligible for garbage collection ?

Core Java

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Q399. Have you worked on Linux Systems ?

General

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Q400. What is virtual table with respect to method overriding in Java ?

Core Java

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Q401. How is the virtual method table implemented in Java?

Core Java

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Q402. Can an In Memory Data Management play a significant role for Big Data Analytics?

BigData

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Q403. Explain the use of Client certificates for authentication ?

Authentication

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Q404. Have you ever worked with encrypted Tokens and How ?

Authentication

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Q405. How to deal with double hop authentication issue?

Authentication

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Q406. Why AWS is better than Azure ?

Cloud Computing

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Q407. Can Java be run on hardware with just the JVM and no OS ?

Core Java

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Q408. Have you ever been in a situation where any of strength became a weakness in some other setting ?

General

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Q409. What is your greatest fear ?

General

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Q410. What sort of challenges do you enjoy ?

General

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Q411. How will you enable or disable assertion for a package during runtime ?

Core Java

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Q412. Which java version supports assertion ?

Core Java

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Q413. Create an event class in Java.

Core Java

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Q414. Why Concurrent Collection Classes are fail-fast in Java ?

Core Java

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Q415. What is method hiding in Java ?

Core Java

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Q416. Can you prevent overriding a method without using final modifier or without declaring it private ?

Core Java

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Q417. Can we declare constructor inside an interface ? Why ?

Core Java

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Q418. How arrays work internally ?

Core Java

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Q419. What is the difference between ArrayIndexOutOfBoundException and ArrayStoreException?

Core Java

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Q420. What is an anonymous array in Java ?

Core Java

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