Interview Question and Answers | Search Coding Interview Questions

Interview Questions and Answers - Order By Newest

Q3201. What are the scenarios you consider in code reviews

General

Ans. https://www.evoketechnologies.com/blog/code-review-checklist-perform-effective-code-reviews/

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Q3202. Why should we go for custom defined exceptions even if we have many exceptions provided already using throw keyword

Core Java

Ans. It gives us the liberty to throw the specific exceptions which are required and also we can control the handling of exceptions

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Q3203. What is a comparator ?

Core Java

Ans. Java Comparator compares two Java objects in a “compare(Object 01, Object 02)” format. Using configurable methods, Java Comparator can compare objects to return an integer based on a positive, equal or negative comparison

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Q3204. Explain life cycle of Spring Application ?

Spring

Ans. Instantiation by using:
InitializingBean callback interface.
Custom init() method from the bean configuration file.
Aware interfaces for distinct actions.
PostConstruct and PreDestroy annotations.
Destruction.
DisposableBean callback interface

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Q3205. How to make a collection thread safe?

Core Java

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Q3206. How to delete a node from linked list if u do not have head and only have a pointer to the element which has to be removed ?

Data Structure

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Q3207. What is string pool and what is the use of intern() function ?

Core Java

Ans. The Java String class intern() method returns the interned string. It returns the canonical representation of string.

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Q3208. What is Defer Parsing JavaScript ?

JavaScript

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Q3209. How do you test object construction or constructors using junit ?

Junit

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Q3210. What is Throwable ?

Core Java

Ans. Throwable in java is a class that is the superclass of all exceptions and errors which may occurs in java program.It extends obcect class.

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Q3211. What are the points to consider while reviewing junits ?

Junit

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Q3212. Have you ever worked with VA Images ?

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Q3213. Have you ever worked with Web Page optimization techniques ? Can you name some ?

Web

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Q3214. Can you name some of the browser caching techniques ?

Web

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Q3215. What happens when we access a website ? How are the different web content - html , images , css etc loaded on the browser ?

Web

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Q3216. Can we optimize retrieval of the web content - html , css , images etc from the server ?

Web

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Q3217. How do you use cut command in unix ?

Unix

Ans. cut command is used to extract the given number of characters and columns from a file

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Q3218. What is difference between Echo and Print ?

Ans. echo and print statements both are similar there is a slight difference between those both are output statements echo has no return value while print has value 1 echo takes multiple parameters but print takes one argument

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Q3219. Rest API crud operation using spring boot

Spring Boot

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Q3220. Hash map using/without using Java 8

Core Java

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Q3221. How to deploy spring boot application without restart in prod env

Spring Boot

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Q3222. differences between drop , delete and truncate

Database

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Q3223. Can we mock private methods ?

PowerMock

Ans. Yes, using Power Mock.

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Q3224. How do you mock private methods using Mockito ?

Mockito

Ans. We just declare the methods as protected and mark them with the annotation @visibleForTesting

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Q3225. Have you ever worked on Google Cloud Platform ?

Google Cloud Platform

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Q3226. Have you ever worked on migration from enterprise network infrastruscture to Cloud Infrastructure ? What problems did you face ?

Infrastructure

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Q3227. Do you think customizing library code for your own use, a good idea ?

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Q3228. Have you ever changed Dojo library code ? Why ?

Dojo

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Q3229. What is the default port for smpt server ?

Server

Ans. 25,465 and 587

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Q3230. Can we assign the reference to this variable ?

Core Java

Ans. No

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