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1. JQuery Interview Questions and Answers

Explain jQuery in brief?
Explain different features of jQuery?
What are the Benefits of jQuery?
Name the latest version of jQuery.
Describe selectors in jQuery?
How many types of selectors are there in jQuery?
Define jQuery .noconflict?
What are the Ajax functions available in jQuery?
What are the several methods used to deliver the effects?
What is .empty() versus .remove() versus .detach() in jQuery?

2. Node.Js Interview Questions

What can you tell me about Node.js?
Highlight some of the key features of Node.js?
Is Node.js completely based on a single thread?
What does event-driven programming mean?
Define “I/O” operations?
How Node.js works?
Name the various API functions supported by Node.js?
What do you understand by the control flow functions?
Explain NPM.
What are the two arguments that async.queue takes as input?
State the difference between Node.js vs Ajax?
Describe the advantages and disadvantages of Node.js?

3. Docker Interview Questions and Answers

What do you understand by the term Docker?
What do you understand by virtualization?
Name the latest version of Docker.
What do you understand by containerization?
Explain hypervisors used in VMs in simple terms.
Differentiate containerization and virtualization.
Explain Docker containers in simple terms.
Explain Docker Images in simpler terms.
What do you understand by Docker hub?
Explain in simple terms the architecture of Docker.
Explain the uses of a Dockerfile in Docker.

4. Linux Interview Questions

What is the latest version of Linux?
What can you tell us about Linux?
Can you explain what is Bash?
Can you differentiate Unix and Linux?
Explain CLI in Linux.
Explain in your own words the use of Linux Kernel.
Explain Kdump in Linux.
Explain Linux Loaded.
What is Swap Space in Linux?
Can you explain Virtual Desktops?
What is Root Account in Linux?
Explain GUI in Linux.
Mention Linux File Permissions.

5. DevOps Interview Questions

What can you tell me about DevOps?
What is the need for DevOps in the current market?
Explain the difference between DevOps and Agile in SDLC? (DevOps Vs Agile)
List a few tools that might be handy for end-to-end DevOps.
Explain how these tools work together to carry out DevOps practices?
Enlist the advantages and benefits that DevOps brings to the table.
What are some of the anti-patterns in DevOps?
Explain the different phases in DevOps?
Differentiate the terms Continuous Delivery (CD) and Continuous Deployment with respect to DevOps?
Explain the role of Continuous Monitoring in DevOps?
In DevOps, explain the purpose of Configuration Management (CM)?
Explain the role of Amazon Web Services (AWS) in DevOps?

There is a gigantic rundown of Linux circulations that are accessible available. So in case you are going to attempt Linux OS for the absolute first time, then, at that point, it's an extreme call to make. The Linux operating framework has specific intricacies of which you probably won't know as a beginner.

You might discover the OS captivating from the get go, yet sorting out its components and capacities will take significantly additional time and information.

In case you are wanting to turn on Linux for reasons unknown, you ought to essentially realize where to begin. The principal thing you should know is that Linux is anything but a solitary operating framework, however it has more than 100 dispersions. In view of useability, highlights, and obviously, your prerequisites, you can pick and introduce a specific Linux conveyance on your machine.

Discussing standards, there are Linux dispersions exceptionally intended for novices. Furthermore, in this post, we will discuss the 10 best Linux operating systems that are direct to utilize regardless of whether you are a novice. Look through and get hold of our rundown now.

7. Artificial Intelligence Interview Questions

Is AI good or bad?
Do you think machines will surpass humans? What will happen if this becomes true in the future?
What are the AI technologies that you use every day?
Do you believe that self-driving cars will work like human driving someday?
Which one would you like to pursue – AI or data science – as a career choice?
What do you understand about AI? Give a simple example.
If you were to build an AI system, what would you like to build?
How is AI different from machine learning?
What is the association between AI and deep learning?
What is deep learning?
How is AI related to data science?
Explain the layers of a neural network.
Explain the different branches (domains) of AI.
How many types of AI are there? Which is the most popular one?
What is fuzzy logic? Give some applications of fuzzy logic.

8. Front End Developer Interview Questions

What does DOCTYPE stand for, and what does it do?
What is the difference between null and undefined?
What is Lazy Loading?
What is Coercion in JS?
What is the use of meta tags in HTML documents?
What is Variable Scope in JS?
What is Node.js?
What is npm?
How does the server hanger the page in which content is present in multiple languages?
Why did we use the data- the attribute in HTML and why it is now discouraged to use?
What is IIFE?
What are the callback functions in JS?
What is React.js?
Why it is encouraged to use external JS and CSS over in-line?
What does this keyword do in JS?

9. Solarmovie Alternatives in 2021

CMovies
123Movies
Vumoo
YesMovies
YifyMovies
Movie4u
MovieWatcher
VexMovies
M4UFree
Putlockerwatch2

10. Best book to learn Machine Learning

Machine learning is probably the most blazing subject of 2021. It is basically a part of AI (Artificial Intelligence) that gives any machine the capacity to settle on choices with no human intercession or express programming. Machine learning calculations are worked by gathering gigantic measures of information from different sources and building a smart framework (model) in view of past encounters, designs and comparable practices.

List of best books:

1. Hands-on ML with Scikit-learn, Keras, and TensorFlow - Buy

2. Learning for absolute beginners - Buy

3. Machine learning: An applied mathematics introduction - Buy

4. Deep learning (Adaptive computation) - Buy

5. Pattern Recognition - Buy

6. Python Machine Learning — Second Edition - Buy

7. Machine learning for dummies - Buy

8. Fundamentals of ML for Predictive Data Analytics - Buy

9. Deep Learning with Python - Buy

10. A Probabilistic Perspective - Buy

Conclusion:

You can decide to purchase whatever blend of Machine Learning books you need to, in light of the data given in this article. I would suggest you start with Machine learning for outright fledglings, trailed by some other middle of the road or another essential level book in the event that you have no clue about ML or Python. In the event that you know math or Python or a tad of ML, ML for fakers or even Fundamentals of Machine Learning for Predictive Data Analytics would be a decent decision to start.

11. Python Interview Questions

Name some main features of Python for which it is popular.
What is the latest version of Python?
How Python is a dynamically typed language?
Name all the inbuilt data types in Python.
What are sets in Python?
Why this statement often used in python: if name==”main”: ?
What is Python GIL?
What is polymorphism in Python?
What is encapsulation in Python?
How the Python list is different from a linked list.
What will be the output of the following code?
What would be the output of this code?
What would be the output?
What would be the output of the following code?
What would be the output of the following code?

12. Angular Interview Questions

What is the purpose of Angular?
What are templates in Angular?
How are Angular expressions different from JavaScript expressions?
Explain the architecture of Angular.
Tell us some differences between components and directives.
What is the primary language used in Angular?
What is the latest version of Angular?
What are NgModules? Differentiate between Javascript modules and NgModules.
What are ngIf and ngFor? Can you show a small example to use them?
What are the new features in the latest version of Angular?
What is the digest cycle?

13. PHP Interview Questions

What is PHP?
What is the full form of PHP?
What does PEAR stand for?
Which programming language does PHP resemble?
What are the differences between PHP & JAVA?
What is the latest version of PHP?
What is the command to execute a PHP script from the command line?
Which function is used to encrypt the password in PHP?
Write a Hello World program using the variable?
Define the Zend Engine?
Write the command to run the interactive PHP shell from the CLI (command-line interface)?

14. Java interview questions

What is Java?
What is Core Java?
What is JVM?
How does a bytecode run in JAVA?
Why do we declare Main as Static?
When a subclass has only parameterized constructor and a superclass does not have a matching constructor, What will happen?
Explain Public Static Void Main (String args[]).
What do you understand by a Wrapper class?
Why JAVA is a statically typed language?
What is Package in JAVA?
What is the Java language programming platform?
Name all Java Programming language platforms.
Explain Method Overloading and Overriding.
What is an interface in Java?

15. SQL Interview Questions

What is Data?
What is a Database?
What is SQL?
What is the latest version of SQL?
What is DBMS?
Name the different types of DBMS.
Give some Key Features of SQL
What is RDBMS?
How DBMS is different from RDBMS?
Name some RDBMS software that uses SQL.
What is a Table in SQL?
What Does a JOIN clause do in SQL?
Name the different types of JOINS in SQL
How SQL is different from a programming language?
Name the different Datatypes of SQL.

16. Best Linux Distros

The Linux kernel
GNU tools
Libraries
Additional software
APIs
A window system
A window manager
A desktop environment and
Documentation.

17. Python Program to Add Two Matrices

A matrix is simply defined as some arrangement of numbers that is formed by using columns and rows. In Python, we use a list of lists to represent a matrix.

If each element of the list is itself a list then it would be a matrix. For instance, [[1,2,3],[3,5,3], [7,9,10]] is a 3×3 matrix i.e. it has 3 rows and 3 columns.

Matrix Addition The number of rows and columns in a matrix determines its dimensions. For example, [2, 3, 4, 5, 22, 24] is a one-dimensional array while [[2,3], [4,5], [22,24]] is a 2-dimensional array. Following is an example of a 3×3 matrix:

[

[1,2,3],

[3,5,3],

[7,9,10]

]

To add two matrices their dimensions should be similar. For example, you can add a 2×3 matrix only with another matrix with 2 rows and 3 columns.

18. Public Domain Photos

Pixabay
Public Domain Archive
New Old Stock
Gratisography
Picjumbo
Kaboompics
Pexels
Flickr Commons
Morguefile
Unsplash

19. Best CSS Frameworks

Bootstrap
Foundation
Pure
Bulma
Semantic UI
Materialize CSS
Skeleton
Tailwind CSS
UI Kit
Ant Design

20. Python GUI Frameworks

Kivy
Tkinter
PyQt
PyGame
WxPython

21. Types of Data Structure

Primitive
- Integer
- (Double) Floating-point Numbers
- Character
- Pointer
Non-primitive
- Linear Data Structure
  - Array
  - List
  - Stack
  - Queue
- Non-Linear Data Structure
  - Tree
  - Graph
- File Data Structure

22. Types of Operating Systems

Batch Operating System
Interactive Operating System
Real-Time Operating System
Multiprogramming Operating System
Multitasking/Time-sharing Operating System
Multiprocessing Operating System
Distributed Operating System

23. Python Matrix

What is a Matrix:

In general, a matrix is a mathematical concept to represent equations in a 2-D structure, using rows and columns.

Python Matrix:

list approach to make a Matrix

matrix = [[1,2,3,4,5],
          [6,7,8,9,10],
          [11,12,13,14,15]
         ]

NumPy Arrays:

Example:

from numpy import array
arr = array([2,4,8,12,26])
print(arr)
print(type(arr)

Output:

[ 2  4  8 12 26]
<class 'numpy.ndarray'>

Matrix Addition:

We can only add two matrices if they have the same number of rows and columns. To add two matrices we can use the Arithmetic “ +” operator.

Example:

import numpy as np
A = np.array([ [1,2,3], [4,5,6], [7,8,9]])
B = np.array([[7,8,9],[4,5,6],[1,2,3]])
print("Matrix Addtion")
print(A+B)

Output:

Matrix Addtion

[[ 8 10 12]
 [ 8 10 12]
 [ 8 10 12]]

24. Python Array

Though there is no in-built support for arrays in python, we can use a module name array to create an array data structure.

Syntax to create an array in Python using array Module:

import array
variable_name = array.array('Type code',[item1 , item2, item3,])

Example:

import array arr = array.array('d', [1,2,3,4])

25. Python Interpreter

CPython
PyPy
Stackless Python
Jython
IronPython
GraalPython

26. Software Testing Interview Questions

What is Software testing?
What are Quality Assurance and Quality Control?
What is verification in software testing?
What is validation in software testing?
What is static testing?
What is dynamic testing?
What is white box testing?
What is black box testing?
What is grey box testing?
What is Positive testing?

27. How to Write Pseudocode

Programmers are able to write algorithms using pseudocode. It is an informal language that is a mix of technical terms and common English.

28. Best Browser for PC

Google Chrome
Mozilla Firefox
Opera
Brave
Vivaldi
Tor
Microsoft Edge
Apple Safari
Cheetah Browser
Maxthon
Ghost Browser
SeaMonkey
Avant Browser
Avast Secure
Dolphin Browse

29. Unix Interview Questions

What is a Single-user system?
List some features of Unix.
What are the filters in UNIX?
Describe the UNIX file system.
What is the command to list out the hidden files?
What are the various files contained by the UNIX file system?
Name the command which displays the current date of the system.
How can we zip and unzip a file?
What is the difference between cat and more command?
Who is the superuser in UNIX?

30. Best Java IDEs to Use in 2022

Eclipse
IntelliJ IDEA
BlueJ
DrJava
MyEclipse
JDeveloper
NetBeans
JCreator
jGRASP
Greenfoot

31. DevOps Certification

AWS Certified DevOps Engineer – Professional
Microsoft Certified: DevOps Engineer Expert
Become a Cloud DevOps Engineer – Nano-Degree Program
Professional Cloud DevOps Engineer – By Google Cloud Platform
Introduction to DevOps: Practices and Tools – by EdX
DevOps Certification Training – by Edureka
Continuous Delivery & DevOps – by Coursera
DevOps Foundations – LinkedIn Learning
Certified Kubernetes Administrator (CKA) – by CNCF
Puppet Professional Certification

32. CSS Interview Questions

What is CSS?
Give some advantages of CSS.
What is the latest version of CSS?
What is the file extension of CSS files?
What are the different methods to integrate CSS on an HTML page?
Why do we use the external method more than any other method?
What is the Embedded style Sheet in CSS
Give some Advantages of Embedded style sheets in CSS.
What is the difference between an inline and an embedded style sheet?
Give some limitations of CSS.

33. HTML Interview Questions

What is HTML?
What is the latest version of HTML?
What is HTML 5?
Can I hide my HTML code from the user?
Give some new features introduced in HTML5?
Give some difference between HTML and HTML5?
Why do we write Doctype at the top of each HTML page?
What happens if we do not mention <!DOCTYPE> in an HTML page?
What are tags?
Do all HTML tags come in pairs?

34. How to Unzip Files in Linux

Use the unzip command, it’s mandatory to have the unzip package installed on our Linux machine. You can simply use the package manager of any popular Linux distribution you are running to install the unzip package. However, most of the Linux distributions come pre-installed with this package.

$ sudo apt-get -y install unzip

If you are using Fedora, CentOS, etc. and you have yum package manager, you can use:

$ sudo yum install unzip

When we run the unzip command without any options, in the most native form, it simply extracts all the files and directories inside the current directory that you are in.

$ unzip archive.zip

35. Data Science Interview Questions

What is data science? What are the steps involved in data science?
What is the difference between data science and machine learning?
How are data science and artificial intelligence related?
Which is the best language for data science and why?
What are the tools and techniques used for data science?
If you have a dataset of 1 lakh students, who have applied for a particular course, how would you fetch only those students who satisfy all the eligibility criteria to apply for the course?
What is the difference between data wrangling and data transformation?
What is data mining? How is it useful?
What are some of the techniques used for data cleaning?
Tell us about the most common applications of data science.

36. How to Extract Images from PDF in Python

A Portable Document Format (PDF) is a record design that presents archives containing message and picture information. Perusing text from a PDF report is direct in Python. Notwithstanding, with regards to pictures, there is no immediate and standard way in Python to peruse the pictures.

We frequently go over different PDFs from which we need to extricate pictures, and for that, we can utilize some PDF peruser or PDF picture extraction application. However, as a Python engineer why introduce applications for such unimportant assignments when we can compose a Python script that concentrates pictures from a PDF record.

37. Programming Interview Questions

Name the most common errors that can occur during the execution of a program?
What is the difference between a syntax error and a semantic error?
How do you define an algorithm?
What is a low-level programming language?
What is a high-level programming language?
What are keywords?
What are loops?
What is an array?
What is debugging?
What is the difference between break and continue statements?

38. C Interview Questions

Who is the creator of the C programming language?
What is the latest version of C?
Give some key Features of C.
What does break keywords do in C?
How many reserved keywords does C have?
What is the full form of ASCII?
What is the default value of int static variable?
How (backslash) used in printf()?
Are N++ and N+1 take the same time to execute, if not why?
Give some differences between local and global variables.

39. JavaScript Interview Questions

What is JavaScript?
Name the tech company which develops JavaScript?
Is JavaScript is related to Java?
Give some Differences between Java and JavaScript?
What do you understand by ECMAScript?
What is the latest version of JavaScript?
Name some of the main features of JavaScript?
Name all the Data Types in JavaScript
What does the isNaN function do in JavaScript
Are Attributes and Properties in JavaScript are the same?
Is JavaScript Case-sensitive?
Is JavaScript faster than ASP script if yes, why?
Give Some advantages of Using JavaScript.
Comment on the negative infinity in JavaScript.
How do we perform breaking a string statement in JavaScript?

40. Tree vs Graph

Tree

A tree is a hierarchical model data structure and it is a collection of a finite number of data elements. Here data elements are nodes. In the tree data structure, the main node is the root node, the topmost node of the structure, and all the other nodes are its children, grandchildren, and so on nodes.

There are many types of tree data structures. How elements are stored in the tree data structure depends upon the specific type of the same.

Graph

A graph is also a non-linear data structure. It is a collection of two sets; vertices and edges, where vertices are the nodes and edges are the set of elements that connect the two vertices.

The graph data structure follows a network model to represent its structure and the network model can form a closed loop. There are many types of graphs and how the vertices are connected with edges depends upon the specific type of graphs.