Philips Innovation Campus Software Engineer Level 1 Interview Questions and Answers

Q1. What is the use of button when link can submit the form?
Ans. 
Buttons are used for actions within the form, while links are used for navigation.
• Buttons can trigger JavaScript functions or perform form validation before submission

• Buttons can have different styles and behaviors compared to links

• Buttons are more accessible for users with disabilities
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Q1. How do you optimize a SQL procedure with 5000 lines in code?
Ans. 
Optimize a SQL procedure with 5000 lines of code by identifying bottlenecks and implementing performance improvements.
• Identify and analyze the most time-consuming parts of the procedure

• Optimize queries by adding appropriate indexes, rewriting queries, or using query hints

• Break down the procedure into smaller, more manageable parts

• Use temporary tables or table variables to reduce the amount of data processed at once

• Cons...read more
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Q2. Keep SQL procedures short, use multiple small procedure with specific functionality being used, avoid use of temp tables and Joins, use select statements wisely. do not use sub queries, do not use dynamic ...read more
Ans. 
To optimize SQL procedures, keep them short, use small procedures with specific functionality, avoid temp tables and joins, use select statements wisely, avoid subqueries and dynamic SQL.
• Break down complex procedures into smaller ones with specific functionality

• Avoid using temporary tables and joins whenever possible

• Use select statements wisely to retrieve only the necessary data

• Avoid subqueries and find alternative ap...read more
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Q1. Tell me something about your projects
Ans. 
I have worked on various projects including a mobile app for tracking fitness goals and a web application for managing inventory.
• Developed a mobile app using React Native to track fitness goals and provide workout plans

• Built a web application using Angular for managing inventory and tracking sales

• Implemented RESTful APIs for communication between frontend and backend systems
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Q2. OS,DBMS questions
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Q1. First Technical Interview: All the C# basic and OOP's questions with written examples 1. Boxing and unboxing 2. Abstraction 3. Polymorphism 4. Delegate 5. Generic 6. Interface Logical question 1. Memory ...read more
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Q2. Second Technical Interview: C# based interview: 1. Ask to make reverse pyramid design pattern. 2. Factorial 3. A lot of questions on Interface with example of my current project. Why we use interface, and ...read more
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Q1. Wpf C# concept and sone codes for binding
Ans. 
WPF C# is a framework for building desktop applications. Binding is a way to connect UI elements to data sources.
• WPF stands for Windows Presentation Foundation

• C# is the programming language used for WPF development

• Binding allows for automatic updates of UI elements when data changes

• Example code for binding:

• DataContext is used to set the data source for binding
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Q1. Previous project and managerial rout
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Q1. Salary expectations
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Q1. Java basics Questions on streams , Java 8
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Q1. Just basic interview Introduction
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Interview process went two technical and one Manager round
it took one week tom complete entire process.

Basics of C++. Solve some problem by given complexity. Find the bugs in code.

Q1. Question from your last project.
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Q2. Design pattern in C++.
Ans. 
Design patterns in C++ are reusable solutions to common problems in software design.
• Design patterns help in creating flexible, maintainable, and scalable code.

• Examples of design patterns in C++ include Singleton, Factory, Observer, and Strategy.

• Each design pattern has a specific purpose and can be applied in different scenarios.
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Q1. Explain your project
Ans. 
Developed a web application for tracking and managing inventory in real-time
• Implemented a user-friendly interface for adding, updating, and deleting inventory items

• Utilized RESTful APIs to communicate with backend database for seamless data retrieval and storage

• Incorporated barcode scanning functionality for quick and accurate inventory management
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Q2. Write singleton pattern
Ans. 
Singleton pattern ensures a class has only one instance and provides a global point of access to it.
• Create a private static instance variable of the class

• Make the constructor private to prevent instantiation from outside the class

• Provide a static method to access the instance, creating it if necessary
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Q3. Handle thread safety in singleton pattern
Ans. 
Use synchronized block or double-checked locking to ensure only one thread can access singleton instance at a time.
• Use synchronized block to ensure thread safety in getInstance() method

• Implement double-checked locking to minimize synchronization overhead

• Consider using Enum singleton for thread safety without synchronization
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Q4. What is a delegate? Write a syntax
Ans. 
A delegate is a type that represents references to methods with a specific parameter list and return type.
• Delegates are similar to function pointers in C++ or pointers to member functions in C++.

• Delegates are used to pass methods as arguments to other methods.

• Delegates can be used to define callback methods.

• Syntax: delegate return_type delegate_name(parameter_list);
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Q5. What is event ? Write a sample event
Ans. 
An event is an occurrence or happening that can be detected and responded to by software.
• Events can be user actions (clicking a button, typing in a text box)

• Events can be system-generated (timer expiration, network packet arrival)

• Events are typically handled by event handlers or listeners in software development
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