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Nonstop Corporation PHP Wordpress Developer Interview Questions and Answers
Nonstop Corporation PHP Wordpress Developer Interview Experiences
1 interview found
Anonymous
I applied via Approached by Company and was interviewed in Mar 2023. There were 3 interview rounds.
(3 Questions)
- Q1. Tell me something about yourself
- Q2. Why you want to join our company
- Q3. Why you are leaving your previous comapny
(1 Question)
- Q1. Question were on html css and javascript
Interview questions from similar companies
(2 Questions)
- Q1. Explian oops concepts
- Ans.
Object-oriented programming concepts that focus on classes and objects for better code organization and reusability.
Encapsulation: Bundling data and methods that operate on the data into a single unit (class).
Inheritance: Ability of a class to inherit properties and behavior from another class.
Polymorphism: Ability to present the same interface for different data types.
Abstraction: Hiding the complex implementation det...
- Q2. Types of waits in selenium
- Ans.
Types of waits in Selenium include implicit, explicit, and fluent waits.
Implicit wait: Waits for a certain amount of time before throwing a NoSuchElementException.
Explicit wait: Waits for a certain condition to occur before proceeding further in the code.
Fluent wait: Waits for a condition to be true with a specified frequency of checking.
Example: driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
(2 Questions)
- Q1. Salary dsicussion
- Q2. Previous company details
Skills evaluated in this interview
(1 Question)
- Q1. Basic js and react
(1 Question)
- Q1. Advance Js and react
(1 Question)
- Q1. Data structure and managerial
(1 Question)
- Q1. Basics of your technical skills
(1 Question)
- Q1. More Projects related questions
I applied via Job Portal and was interviewed in Dec 2023. There was 1 interview round.
Basic code to be written
I applied via Naukri.com and was interviewed in Jul 2022. There was 1 interview round.
(7 Questions)
- Q1. What are indexes in the database? what is the difference between clustered and non-clustered indexes?
- Ans.
Indexes are used to improve database performance. Clustered indexes determine the physical order of data, while non-clustered indexes do not.
Indexes are used to speed up data retrieval operations in a database.
Clustered indexes determine the physical order of data in a table, while non-clustered indexes do not.
A table can have only one clustered index, but multiple non-clustered indexes.
Clustered indexes are generally ...
- Q2. Write a query to delete duplicate rows from a table.
- Ans.
Query to delete duplicate rows from a table
Use GROUP BY clause to group the rows by their unique values
Use HAVING clause to filter out the groups with count greater than 1
Use DELETE statement to delete the duplicate rows
- Q3. Class A { public string A() { return "hello"; } } what is wrong with above code?
- Q4. What is a singleton pattern and how to implement it?
- Ans.
Singleton pattern restricts the instantiation of a class to a single instance and provides a global point of access to it.
Create a private constructor to restrict instantiation of the class
Create a private static instance of the class
Create a public static method to access the instance
Ensure thread safety if necessary
Examples: Database connection, Logger, Configuration settings
- Q5. How do you handle exceptions in stored procedures?
- Ans.
Handle exceptions in stored procedures by using TRY-CATCH blocks.
Use TRY-CATCH blocks to catch and handle exceptions
Log the error message and severity level
Rollback the transaction if necessary
Rethrow the error if it cannot be handled
Use RAISERROR to raise custom error messages
- Q6. Explain SOLID principles.
- Ans.
SOLID principles are a set of five design principles that help in creating maintainable and scalable software.
S - Single Responsibility Principle: A class should have only one reason to change.
O - Open-Closed Principle: Software entities should be open for extension but closed for modification.
L - Liskov Substitution Principle: Subtypes should be substitutable for their base types.
I - Interface Segregation Principle: C...
- Q7. Difference between throw and throw exception?
- Ans.
throw is used to throw an exception while throw exception is used to throw a specific exception.
throw is used to throw any type of exception while throw exception is used to throw a specific type of exception.
throw exception is followed by the type of exception that needs to be thrown.
throw can be used to throw any object while throw exception can only be used to throw an exception object.
Example: throw new Exception("
Interview Preparation Tips
Skills evaluated in this interview
I applied via Naukri.com and was interviewed in Mar 2022. There were 6 interview rounds.
(7 Questions)
- Q1. What are the differences between stored procedure and triggers in SQL?
- Ans.
Stored procedures are precompiled SQL statements that can be executed on demand, while triggers are automatically executed in response to specific events.
Stored procedures are explicitly called by the user, while triggers are automatically invoked by the database system.
Stored procedures can accept parameters and return values, while triggers cannot.
Stored procedures can be executed independently, while triggers are al...
- Q2. What is a Kernel in OS
- Ans.
Kernel is the core component of an operating system that manages system resources and provides a bridge between hardware and software.
Kernel is responsible for managing memory, processes, and device drivers.
It provides an interface for applications to access hardware resources.
Kernel operates in privileged mode and has direct access to the hardware.
Examples of popular kernels are Linux kernel, Windows NT kernel, and ma
- Q3. What are access specifiers in c++
- Ans.
Access specifiers in C++ are keywords that determine the visibility and accessibility of class members.
There are three access specifiers in C++: public, private, and protected.
Public members are accessible from anywhere in the program.
Private members are only accessible within the class itself.
Protected members are accessible within the class and its derived classes.
Access specifiers are used to enforce encapsulation a
- Q4. Explain about Polymorphism
- Ans.
Polymorphism is the ability of an object to take on many forms.
It allows objects of different classes to be treated as if they were objects of the same class.
It can be achieved through method overloading or method overriding.
Example: A shape class can have different subclasses like circle, square, etc. and all can be treated as shapes.
It helps in achieving code reusability and flexibility.
- Q5. Explain about operator overloading
- Ans.
Operator overloading allows operators to have different meanings based on the operands they work on.
It allows operators to be used with user-defined data types
It can simplify code and make it more readable
Examples include using the + operator to concatenate strings or add numbers
Operators can be overloaded for unary and binary operations
- Q6. Explain about encapsulation
- Ans.
Encapsulation is the process of hiding implementation details and providing a public interface for accessing the object.
Encapsulation helps in achieving data abstraction and information hiding.
It prevents unauthorized access to the internal state of an object.
It allows for better control over the data and its behavior.
Example: A bank account class with private variables for balance and account number, and public method...
- Q7. Explain about your Projects?
- Ans.
I have worked on various projects involving web development, mobile app development, and data analysis.
Developed a web application using React.js and Node.js for managing customer orders.
Created a mobile app using Flutter for tracking daily expenses and generating expense reports.
Implemented a data analysis tool using Python and SQL to analyze customer behavior and improve marketing strategies.
(4 Questions)
- Q1. What is your family background?
- Ans.
My family background is diverse and has influenced my values and perspectives.
My parents come from different cultural backgrounds, which has exposed me to different traditions and languages.
I have siblings who are also in the software engineering field, which has fostered a supportive and collaborative environment.
My family has always encouraged education and personal growth, which has motivated me to pursue a career i
- Q2. Tell me about yourself.
- Ans.
I am a software engineer with experience in developing and maintaining software applications.
I have a Bachelor's degree in Computer Science.
I have worked on various projects using different programming languages such as Java, C++, and Python.
I am skilled in software development methodologies like Agile and have experience with version control systems like Git.
I have strong problem-solving and analytical skills, which h...
- Q3. What is your Native place?
- Ans.
My native place is a small town in the countryside known for its scenic beauty and peaceful environment.
My native place is located in the outskirts of a major city.
It is known for its rich cultural heritage and historical landmarks.
The people in my native place are warm and welcoming.
The local cuisine is famous for its unique flavors and traditional recipes.
There are several tourist attractions in and around my native ...
- Q4. What is your favourite moment?
- Ans.
My favorite moment was when I successfully completed a complex software project ahead of schedule.
Successfully completing a complex software project ahead of schedule
Receiving positive feedback from clients and team members
Seeing the impact of my work on improving efficiency or solving a problem
Collaborating with a talented and supportive team
Overcoming challenges and finding innovative solutions
(2 Questions)
- Q1. Explain about your projects
- Ans.
I have worked on various projects involving web development, mobile app development, and data analysis.
Developed a web application using React.js and Node.js for managing customer orders.
Created a mobile app using Flutter for tracking daily expenses and generating reports.
Implemented data analysis algorithms in Python to analyze customer behavior and improve marketing strategies.
- Q2. Tell me about yourself
- Ans.
I am a software engineer with 5 years of experience in developing web applications using Java and JavaScript.
5 years of experience in software engineering
Proficient in Java and JavaScript
Developed web applications
Strong problem-solving skills
Experience with agile development methodologies
(1 Question)
- Q1. Tell me about yourself.
- Ans.
I am a software engineer with experience in developing and maintaining software applications.
I have a Bachelor's degree in Computer Science.
I have worked on various projects using different programming languages such as Java, C++, and Python.
I am skilled in software development methodologies like Agile and have experience with version control systems like Git.
I have strong problem-solving and analytical skills, which h...
Interview Preparation Tips
- c, java
Know yourself and what you want
Be Confident
Skills evaluated in this interview
CodingNinjas
I was interviewed in Jan 2021.
(2 Questions)
Round duration - 60 minutes
Round difficulty - Medium
- Q1. Sum Between Zeroes
You are given a Singly Linked List which contains a series of integers separated by ‘0’.
Between two zeroes, you have to merge all the nodes lying between them into a single node which...
- Ans. Two Pointer Approach
Let us initialize two pointers, newHead and newTail, with NULL (These will be the head and tail of the final list). Now traverse the given list. Ignore the first zero. Now, as you encounter non-zero nodes, add their values in a variable called ‘sum’. As soon as you encounter a node with data 0, change that node's value to ‘sum’, and
- If newHead is NULL, this node becomes the new head and tail of the l...
- Q2. Minimum Cost to Buy Oranges
You are given a bag of size 'W' kg and provided with the costs of packets with different weights of oranges as a list/array with the name 'cost'. Every i-th posi...
- Ans. Recursive Approach
Write a recursive function minCostToBuyOrangesHelper(idx, requiredWeight, n) to return the Minimum cost to buy exactly requiredWeight Kg oranges with (idx+1) Kg to N kg packets.
- Our minimum cost for weight W will be : minCostToBuyOrangesHelper(idx, W, n)
- Now at any instant (idx, requiredWeight, n), we have two options:
- The option of taking this packet:
cost[idx] + minCostToBuyOrangesHelper(idx, requiredWe...
(2 Questions)
Round duration - 60 minutes
Round difficulty - Medium
- Q1. Connect N Ropes With Minimum Cost
You have been given 'N' ropes of different lengths, we need to connect these ropes into one rope. The cost to connect two ropes is equal to sum of their lengths. W...
- Ans. Brute Force Approach
Clearly, the rope which is picked up first will be having its length included more than once in the final cost. If we pick a rope of larger length earlier, then we will be adding some extra cost to our final result.
So, the idea is to pick ropes of smaller lengths initially to minimize the impact on our final cost.So, each time we will be finding two smallest ropes, connecting them and
adding the resu...
- Q2. DBMS Question
Tell the ACID properties in DBMS.
Interview Preparation Tips
Tip 1 : The most important thing is to prepare Data Structures and Algorithms. Ensure to be very much clear on your basics and skills.
Tip 2 : Revise the OOPS concepts thoroughly.
Tip 3 : Practice minimum 200 DSA questions. Practice aptitude and reasoning questions regularly.
Tip 1 : Mention only those skills, projects and achievements in which you have complete and thorough knowledge.
Tip 2 : Do not add more than 2 - 3 projects and that too in which you have proper knowledge and understanding.
Tip 3 : Resume should be of 1 page only. Keep your resume very crisp and brief.
Skills evaluated in this interview
I applied via Naukri.com and was interviewed in Dec 2019. There were 3 interview rounds.
Interview Questionnaire
9 Questions
- Q1. What is difference between controller and rest controller?
- Ans.
A controller is a component that handles incoming requests and returns a response, while a REST controller specifically handles RESTful requests.
A controller is responsible for handling various types of requests, such as HTTP, WebSocket, etc.
A REST controller is a type of controller that specifically handles RESTful requests, which follow the principles of Representational State Transfer (REST).
REST controllers typical...
- Q2. What is functional interface?
- Ans.
A functional interface is an interface that has only one abstract method.
Functional interfaces are used in lambda expressions and method references.
They can have default methods and static methods.
Examples include Runnable, Comparator, and Function interfaces.
Functional interfaces can be annotated with @FunctionalInterface annotation.
- Q3. What is lamda expression?
- Ans.
Lambda expression is a concise way to represent anonymous functions in programming languages.
Lambda expressions are commonly used in functional programming languages.
They can be used to create functions on the fly without having to define them explicitly.
Lambda expressions are often used in higher-order functions, such as map, filter, and reduce.
They can also be used to create closures, which are functions that capture...
- Q4. What is exception propagation?
- Ans.
Exception propagation is the process of passing an exception up the call stack to be handled by a higher-level method.
Exceptions are thrown when an error occurs in a method.
If the exception is not caught and handled within the method, it is propagated up the call stack.
Each method in the call stack has the option to catch and handle the exception or propagate it further up.
If the exception reaches the top of the call s...
- Q5. Difference between get and load method in hibernate?
- Ans.
get() method returns null if the object is not found in the cache or database, while load() method throws an exception.
get() method is eager loading while load() method is lazy loading.
get() method returns the object from the database or cache while load() method returns a proxy object.
get() method is slower than load() method.
get() method is used when we are not sure if the object exists in the database or cache while...
- Q6. What is method overriding?
- Ans.
Method overriding is when a subclass provides its own implementation of a method that is already defined in its superclass.
Method overriding is used to achieve runtime polymorphism.
The method signature (name, parameters, return type) must be the same in both the superclass and subclass.
The access level of the overriding method cannot be more restrictive than the overridden method.
Example: class Dog extends Animal { pub...
- Q7. What IOC and DI in spring?
- Ans.
IOC and DI are design patterns used in Spring framework for loose coupling and dependency injection.
IOC (Inversion of Control) is a design pattern where the control of object creation and lifecycle is handed over to a container or framework.
DI (Dependency Injection) is a design pattern where the dependencies of an object are injected into it by an external entity, rather than the object creating them itself.
Spring fram...
- Q8. What is internal working of hashmap?
- Ans.
HashMap is a data structure that stores key-value pairs and uses hashing to retrieve values quickly.
HashMap uses an array of buckets to store key-value pairs
Each bucket contains a linked list of entries with the same hash code
When a key-value pair is added, its hash code is used to determine the bucket and added to the linked list
When a value is retrieved, its hash code is used to find the bucket and search the linked ...
- Q9. Advantages of spring boot?
- Ans.
Spring Boot provides rapid application development and microservices architecture.
Easy configuration and setup
Embedded servers for faster development
Auto-configuration of dependencies
Supports multiple data sources
Actuator for monitoring and managing applications
Simplifies development of RESTful web services
Enables building of microservices architecture
Provides a wide range of plugins and extensions
Reduces boilerplate c
Interview Preparation Tips
Skills evaluated in this interview
I applied via Naukri.com and was interviewed in Sep 2019. There were 6 interview rounds.
Interview Questionnaire
3 Questions
- Q1. There were questions mainly checking core java skills and concept on hibernate, spring boot, spring core, spring MVC, optimization
- Q2. Serialization, internal working hashmap, concurrent hashmap, abstraction, interface, oops concepts, threading cycle, exception handling, singleton class, singleton pattern, spring annotations, springboot a...
- Q3. Custom exception, custom immutable string, defining abstraction n interface, hashmap internal working, thread creation n working, singleton class ABOVE ALL PROGRAM
Interview Preparation Tips
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