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

Interview Questions and Answers - Order By Newest

Q1691. What is the scope of Service class ? Do we need to add it to declaration or imports or providers to be made available to the component ?

Angular

^{This question is still unanswered. Can you please provide an answer.}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve}

Q1692. Difference between git init and git clone ?

Git

Ans. "git init" creates an empty repository or can make an existing directory a git repository while "git clone" first internally calls "git init" to create an empty git repository and then copy the data from the specified remote repository.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve git init git clone git init vs git clone basic}

Q1693. Difference between git fetch and git pull ?

Git

Ans. git pull does a git fetch followed by a git merge. git fetch only change the remote tracking but never attempts to make changes to the local.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve git fetch vs git pull git fetch git pull Asked in 1 Companies}

Q1694. Why angular apps are called single page applications ?

Angular Js

Ans. In Angular Apps, route between pages are performed without rendering the entire page. Url changes are done through routing. Routing in AngularJS is implemented by including <ng-view> or <ui-view> in the index.html page without refreshing the entire page

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve}

Q1695. What is a component, service, directive and pipe ?

Angular Js

^{This question is still unanswered. Can you please provide an answer.}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve}

Q1696. Can making the S3 bucket public ,makes all objects / files inside as public too ?

Amazon Web Services (AWS)

^{This question is still unanswered. Can you please provide an answer.}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve aws s3 aws storage amazon cloud storage amazon s3}

Q1697. How can we make an S3 file public through Java program ?

Amazon Web Services (AWS)

Ans. We can get the object and then can set CannedAcl property as "PublicRead"

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve aws s3 aws storage amazon cloud storage amazon s3}

Q1698. How can we schedule Lambda function to run daily ?

Amazon Web Services (AWS)

Ans. We can schedule that through CloudWatch.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve lambda function aws lambda aws serverless computing amazon cloud serverless computing amazon lambda function aws cloudwatch amazon cloudwatch}

Q1699. If Java will die in next few year what will you do ?

Programming Language

^{This question is still unanswered. Can you please provide an answer.}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve}

Q1700. Which Technology/Programming Language will Lead Future?

General

^{This question is still unanswered. Can you please provide an answer.}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve}

Q1701. What is the difference between bubble sort using Java and C++ ?

Programming Language

^{This question is still unanswered. Can you please provide an answer.}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve C++ vs Java}

Q1702. What are the main limitations of Java as programming language?

General

^{This question is still unanswered. Can you please provide an answer.}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve}

Q1703. Which Java libraries are most useful for your work as a Java developer?

General

^{This question is still unanswered. Can you please provide an answer.}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve}

Q1704. What is the difference between try-catch and @ExceptionHandler in Java/Spring Boot?

Spring Boot

Ans. ExceptionHandler is Used to handle at Method level

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve @ExceptionHandler}

Q1705. What are the advantages of going serverless against reserved servers ?

Server

Ans. Quick Turnaround Time and Quick Time to Market
No Worry about the infrastructure , low maintenance
Cost only for use , not for reservation.
Multiple small applications instead of one big. Results in better uptime and mainetnability.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve serverless server vs serverless}

Q1706. Explain hibernate associations.

Hibernate

^{This question was recently asked at 'Ray Business Technologies'.This question is still unanswered. Can you please provide an answer.}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Asked in 1 Companies}

Q1707. What is @EnableSptringMVC ?

Spring

^{This question was recently asked at 'Tata Consultancy (TCS)'.This question is still unanswered. Can you please provide an answer.}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Asked in 1 Companies}

Q1708. There are 8 balls, 7 weigh 100 gms, 1 is defective, there is a weighing scale, any number of balls can be measured at the same time. in how many attempts defective balls can be found out.

Puzzle

Ans. 2 attempts Weigh 3 3 balls. If the weight is same then weigh the remaining two balls

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Asked in 1 Companies}

Q1709. Detect a loop in a linked list

Data Structure

Ans. Work with two pointers on the linked list - a slow pointer (increments by one node) and a fast pointer (increments by two nodes). If both of these pointers meet at the same node, then there is a cycle in the linked list. Otherwise, no cycle.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve linkedlist Asked in 1 Companies}

Q1710. Difference between indexing and partioning

Database

Ans. Creating an index creates a separate table. ... Indexes are used to speed the search of data within tables. Partitions provide segregation of the data at the hdfs level, creating sub-directories for each partition. Partitioning allows the number of files read and amount of data searched in a query to be limited

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve indexing partitioning Asked in 3 Companies}

Q1711. in the following class:
class A {
void methoda(Object o) {
Sysout("Object");
}

void methoda(String s) {
Sysout("String");
}

public static void main(String []args) {
A a = new A();
a.methoda(null);
}
}

what will be printed?

Core Java

Ans. String

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Code Coding method overloading Asked in 1 Companies}

Q1712. 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.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Asked in 3 Companies}

Q1713. Explain Hibernate caching mechanism

Hibernate

Ans. Every fresh session having its own cache memory, Caching is a mechanism for storing the loaded objects into cache memory. The advantage of cache mechanism is, whenever again we want to load the same object from the database then instead of hitting the database once again, it loads from the local cache memory only, so that the no. of round trips between an application and a database server got decreased. It means caching mechanism increases the performance of the application.

In hibernate we have two levels of caching

First Level Cache [ or ] Session Cache
Second Level Cache [ or ] Session Factory Cache [ or ] JVM Level Cache

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Asked in 23 Companies}

Q1714. Explain servlet lifecycle

Java EE

Ans. Init -> service -> destroy.

Out of these, init and destroy are called once per servlet whereas service is called every time when a request is made to the servlet.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve servlet Asked in 6 Companies}

Q1715. What are the 7 OSI LAYERS ?

Networking

Ans. Layer 7 - Application
Layer 6 - Presentation
Layer 5 - Session
Layer 4 - Transport
Layer 3 - Network
Layer 2 - Data Link
Layer 1 - Physical

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Asked in 7 Companies}

Q1716. Implement a Stack with 2 threads in which one thread push data and another pop data.

Data Structure

^{This question was recently asked at 'HCL Technologies'.This question is still unanswered. Can you please provide an answer.}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve stack Asked in 1 Companies}

Q1717. Can we create object in static block ?

Core Java

^{This question was recently asked at 'DXC Technologies'.This question is still unanswered. Can you please provide an answer.}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Asked in 1 Companies}

Q1718. What are the different ways to create objects in Java ?

Core Java

Ans. 1. Using new operator
3. Using Class.forName or Reflection
4. Using clone
5. Using Deserialization

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Asked in 1 Companies}

Q1719. What will happen if there are no collections in java ?

Core Java

Ans. Collections in Java is nothing but a library implementation for data structures and algorithm. If it's not available , we might have to include some other library or provide our own implementation.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve collections}

Q1720. Can comments be added in JSON ?

JSON

Ans. No, It should all be data.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Markup languages}

Search Interview Questions

Help us and Others Improve. Please let us know the questions asked in any of your previous interview.