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Ques:- How does AUTOSAR support reusability and scalability
Right Answer:
AUTOSAR supports reusability and scalability through its standardized architecture, which allows software components to be developed independently and reused across different projects. It defines clear interfaces and communication protocols, enabling components to be easily integrated. Additionally, the layered architecture separates application software from hardware, allowing for scalability as new features or hardware platforms can be added without significant changes to existing components.
Ques:- What is the difference between Classic AUTOSAR and Adaptive AUTOSAR
Right Answer:
Classic AUTOSAR is designed for safety-critical applications with a focus on real-time performance and static architectures, while Adaptive AUTOSAR is intended for more complex, high-performance applications that require dynamic software updates and support for advanced computing platforms.
Ques:- What is the role of the MCAL (Microcontroller Abstraction Layer)
Right Answer:
The MCAL (Microcontroller Abstraction Layer) provides a standardized interface between the AUTOSAR software components and the microcontroller hardware, allowing for hardware independence and easier software portability across different microcontrollers.
Ques:- What is the difference between transparent tables and pooled or cluster tables
Right Answer:
Transparent tables are database tables that have a one-to-one relationship with database tables in the underlying database, meaning each transparent table corresponds to a single table in the database. Pooled tables and cluster tables, on the other hand, are used to store multiple logical tables in a single database table. Pooled tables combine several tables into a single table for efficiency, while cluster tables group related tables together, allowing for more complex data structures.
Ques:- When do you get constraint violation? What are the types of constraints?
Right Answer:
A constraint violation occurs when an operation violates the rules defined by a constraint in the database, such as trying to insert a duplicate value in a column that requires unique values. The types of constraints include:

1. **Primary Key Constraint** - Ensures that each row has a unique identifier.
2. **Foreign Key Constraint** - Ensures referential integrity between tables.
3. **Unique Constraint** - Ensures all values in a column are unique.
4. **Check Constraint** - Ensures that all values in a column meet a specific condition.
5. **Not Null Constraint** - Ensures that a column cannot have a NULL value.
Ques:- Explain open SQL vs native SQL?
Right Answer:
Open SQL is a database-independent SQL interface provided by SAP that allows developers to write queries without worrying about the underlying database system. It translates the queries into the appropriate SQL dialect for the specific database being used.

Native SQL, on the other hand, refers to the SQL syntax specific to a particular database management system (DBMS). It allows for the use of advanced features and optimizations specific to that DBMS but is not portable across different systems.
Ques:- How functional dependency is related to database table design?
Right Answer:
Functional dependency is a relationship between attributes in a database table where one attribute uniquely determines another. It is crucial for database table design as it helps in organizing data efficiently, ensuring data integrity, and minimizing redundancy by guiding the normalization process.
Ques:- What is responsive design and how do you implement it
Right Answer:
Responsive design is an approach to web development that ensures a website looks and functions well on various devices and screen sizes. It is implemented using flexible grid layouts, fluid images, and CSS media queries to adapt the layout and content based on the device's screen size and orientation.
Ques:- What are event bubbling and event delegation in JavaScript
Right Answer:
Event bubbling is a JavaScript event propagation method where an event starts from the target element and bubbles up to its ancestors in the DOM hierarchy. Event delegation is a technique that involves attaching a single event listener to a parent element to manage events for multiple child elements, leveraging event bubbling to handle events efficiently.
Ques:- What is the DOM and how do you manipulate it
Right Answer:
The DOM (Document Object Model) is a programming interface for web documents that represents the structure of a webpage as a tree of objects. You can manipulate the DOM using JavaScript by selecting elements (e.g., using `document.getElementById`, `document.querySelector`), modifying their properties (e.g., `element.innerHTML`, `element.style`), adding or removing elements (e.g., `element.appendChild`, `element.remove`), and responding to events (e.g., `element.addEventListener`).
Ques:- What is the difference between HTML and HTML5
Right Answer:
HTML5 is the latest version of HTML, which includes new features such as native support for audio and video, new semantic elements (like `<article>`, `<section>`, and `<header>`), improved parsing rules, and better support for web applications with APIs like local storage and canvas. HTML, on the other hand, refers to earlier versions that lack these enhancements.
Ques:- What are semantic HTML elements and why are they important
Right Answer:
Semantic HTML elements are tags that clearly describe their meaning in a human- and machine-readable way, such as `<header>`, `<article>`, `<footer>`, and `<section>`. They are important because they improve accessibility, enhance SEO, and make the structure of the web page clearer for developers and browsers.
Ques:- How the handle helps in manipulating the kernel objects?
Right Answer:
A handle is a unique identifier that allows a program to access and manipulate kernel objects, such as files, processes, and threads, without needing to know the details of the object itself. It acts as a reference that the operating system uses to manage the object's state and permissions.
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