Interview Questions and Answers for 'L' | Search Interview Question

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Q1951. What is the use of toString method ?

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Q1952. All the meaningful words that can be formed from a phone keypad

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Q1953. 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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Q1954. 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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Q1955. 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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Q1956. 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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Q1957. 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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Q1958. Rest API crud operation using spring boot

Spring Boot

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Q1959. Hash map using/without using Java 8

Core Java

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Q1960. How to deploy spring boot application without restart in prod env

Spring Boot

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Q1961. differences between drop , delete and truncate

Database

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Q1962. Have you ever worked on Google Cloud Platform ?

Google Cloud Platform

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Q1963. Should we do anything to avoid memory leaks in Java ?

Core Java

Ans. Java has a intrinsic way of checking leaks and reclaiming memory called garbage collection. Moreover Java doesn't support pointer arithmetics , so there is very low comparative chance of memory leaks, compared to C,C++

Though there may be tools that may audit code to make sure that we are not leaving much for the garbage collection to work but I have never heard anyone doing anything for memory leaks in Java.

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Q1964. Write a Program to draw a fish ?

Core Java

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Q1965. Can you explain integration between Spring and Hibernate ?

Hibernate

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Q1966. Explain Virtual machines in Google Cloud Platform.

Google Cloud Platform (GCP)

Ans. Virtual machines are IAAS in GCP which can called Compute Engine

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Q1967. Explain Identity management in GCP ?

Google Cloud Platform (GCP)

Ans. IAM is used to define the level of access to GCP services

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Q1968. Why would you use XML over JSON when using ajax ?

JSON

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Q1969. Write a method to track every click on a page.

JavaScript

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Q1970. Create a component and sort the data to show specific information.

React JS

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Q1971. prototypal inheritance in Javascript

JavaScript

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Q1972. CSS Box Model

CSS

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Q1973. Develop an address form in React js.

React JS

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Q1974. Difference between Span and Div ?

Html

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Q1975. Can we check two html radio buttons together ?

Html

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Q1976. What is the use of defining equals , compareTo and hashcode methods in a class ? Where are they used ?

Core Java

Ans. equals, compareTo and hashcode are of use when the objects are used within collections.

Equals helps with collections that helps maintaining only unique objects ( like Set )

compare and compareTo helps with collections that helps maintaining objects in order ( TreeSet, TreeMap etc )

hascode helps with collections that facilitates hash searching ( like hashSet, hashMap etc )

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Q1977. How does cloud computing helps saves cost ?

Cloud Computing

Ans. Cloud computing helps saving overall cost for infrastructure and service usage through following -

1. On demand Services and elasticity - You only pay for what you use. Less Ideal time.

2. Resource Pooling

3. Self Service - Less involvement of human resources

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Q1978. Which category of services, Amazon Lambda belongs to ?

Amazon Web Services (AWS)

Ans. It's Serverless and PAAS ( Platform as a service )

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Q1979. What are the different types of Services GCP provides ?

Google Cloud Platform (GCP)

Ans. Compute
Network
Storage
Big Data
Machine Learning

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Q1980. What is the difference between Billing Alerts and Budget Quotas in GCP ?

Google Cloud Platform (GCP)

Ans. Alerts only let customer knows of any excessive usage whereas Quota restricts the usage beyond a certain point.

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