Capgemini Lead Software Engineer Interview Questions and Answers

Q1. C dsp different ul channel
Ans. 
C DSP is used for processing digital signals in real-time, while UL channels refer to uplink channels in telecommunications.
• C DSP is a programming language used for real-time signal processing.

• UL channels refer to uplink channels in telecommunications for transmitting data from user equipment to the network.

• Combining C DSP with UL channels can optimize signal processing and data transmission in telecommunications syste...read more
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Q2. C dsp ul dl channel
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Q1. What is a View Model in Android? Explain Room DB Steps in Detail? Explain Features of Java 8 ? Write a Code Snippet for Thread ?
Ans. 
A View Model in Android is a class that stores and manages UI-related data in a lifecycle-conscious way.
• View Model helps to separate the UI data from the UI controller logic.

• It survives configuration changes and can be shared between fragments or activities.

• Example: ViewModel class in Android Architecture Components.
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Q2. What is View Model ?
Ans. 
View Model is a design pattern that separates the data presentation logic from the business logic in an application.
• View Model is used to prepare data for display in a user interface.

• It helps in keeping the business logic separate from the UI logic.

• View Model is commonly used in MVVM (Model-View-ViewModel) architecture.

• It can contain data formatting, validation, and other presentation-related logic.
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Q3. Room DB in Android ?
Ans. 
Room DB is a persistence library that provides an abstraction layer over SQLite to allow for more robust database access in Android applications.
• Room DB simplifies database interactions by providing compile-time verification of SQL queries.

• It consists of three main components: Entity, DAO (Data Access Object), and Database.

• Example: @Entity annotation defines a SQLite table, @Dao annotation defines database operations, ...read more
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Q4. Android Components Framework ?
Ans. 
Android Components Framework is a set of building blocks that help developers create Android apps.
• Includes activities, services, broadcast receivers, and content providers

• Activities are UI components, services run in the background, broadcast receivers respond to system-wide broadcast announcements, content providers manage shared set of app data

• Components can be declared in the AndroidManifest.xml file
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Q1. 1) Explain AIDL, HIDL ? 2) Android Boot Up Sequence? 3) Android Architecture in detail? 4) Android Components Framework? 5) Android Activity Lifecycle?
Ans. 
AIDL and HIDL are communication interfaces used in Android development. Android Boot Up Sequence, Architecture, Components Framework, and Activity Lifecycle are key concepts in Android development.
• AIDL (Android Interface Definition Language) is used for inter-process communication in Android. It allows different applications to communicate with each other.

• HIDL (Hardware Interface Definition Language) is used for commun...read more
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Q1. What is CSV, VP? Difference between 21CFR part 11 and EUannex 11? Gamp5 ?
Ans. 
CSV stands for comma-separated values, VP is validation protocol. 21CFR part 11 and EU annex 11 are regulations for electronic records and signatures in the US and EU. Gamp5 is a guideline for validation of computerized systems in the pharmaceutical industry.
• CSV is a file format used for storing tabular data in plain text, with each line representing a data record and each record separated by commas.

• VP is a validation ...read more
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Q1. Scenerio given regarding the CSV project and you need to complete the project? How you finish the project?
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Q1. What are the concepts of Object-Oriented Programming (OOP) in C++ ?
Ans. 
C++ OOP concepts include encapsulation, inheritance, polymorphism, and abstraction, enabling modular and reusable code design.
• Encapsulation: Bundling data and methods that operate on the data within a single unit (class). Example: class Car { private: int speed; public: void setSpeed(int s) { speed = s; } };

• Inheritance: Mechanism to create a new class from an existing class, inheriting attributes and behaviors. Example...read more
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Q2. What is the function of the Standard Template Library (STL) in C++?
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The Standard Template Library (STL) in C++ provides a collection of template classes and functions for data structures and algorithms.
• Containers: STL includes various container types like vector, list, and map, which store collections of data. Example: std::vector<int> numbers;

• Algorithms: STL provides a range of algorithms such as sort, search, and transform that can be applied to containers. Example: std::sort(n...read more
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Nice Experience, good balanced work cultural programming and very nice supportive.

Q1. Related project
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Q2. Related Leadership Ability
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Q1. What are Pure Components in React JS?
Ans. 
Pure Components in React JS are components that do not re-render unless their props have changed.
• Pure Components extend React.Component and implement shouldComponentUpdate method for shallow comparison of props and state.

• Pure Components are more efficient than regular components as they prevent unnecessary re-renders.

• Example: class MyComponent extends React.PureComponent { // component code here }
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Q2. What are the lifecycle methods of React?
Ans. 
React lifecycle methods include componentDidMount, componentDidUpdate, componentWillUnmount, etc.
• componentDidMount - called after component is rendered for the first time

• componentDidUpdate - called after component's state or props change

• componentWillUnmount - called before component is removed from the DOM
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