Tesla Software Developer Interview Questions and Answers

Q1. Sort and Merge two linked list
Ans. 
Sort and merge two linked lists
• Traverse both linked lists simultaneously

• Compare the values of nodes and merge them in sorted order

• Handle cases where one list is longer than the other
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Q1. How many ways we can share data between one app to another app?
Ans. 
There are multiple ways to share data between apps, including using intents, content providers, broadcast receivers, and shared preferences.
• Using Intents: Allows apps to send and receive data through an Intent object.

• Content Providers: Enable apps to share data with other apps by exposing a structured set of data through a URI.

• Broadcast Receivers: Apps can send broadcasts to other apps to share data or events.

• Shared Pr...read more
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Q2. Lifecycle of activity. What would be the state if app is running in the background. When it will be in onStop and onRestart state?
Ans. 
The app lifecycle includes states like running in the background, onStop, and onRestart.
• App running in the background: When the app is not visible but still running, it is in the background state.

• onStop state: Occurs when the activity is no longer visible to the user.

• onRestart state: Follows onStop and is called when the activity is being re-displayed to the user.
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Q3. What is AIDL in Android development?
Ans. 
AIDL stands for Android Interface Definition Language, used for inter-process communication in Android development.
• AIDL is a tool used to define the programming interface that clients and servers use to communicate with each other in Android.

• It allows different Android components to communicate with each other across different processes.

• AIDL files define the methods that can be called remotely, along with the data type
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Q4. Working experience with JNI
Ans. 
JNI stands for Java Native Interface, used to integrate Java code with native code written in languages like C/C++.
• Experience in writing Java code that interacts with native code through JNI

• Understanding of how to create and use JNI libraries

• Knowledge of passing data between Java and native code using JNI functions
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Q5. What is a service?
Ans. 
A service is a piece of code that performs specific tasks or functions to support the overall functionality of a software application.
• Services are often used for tasks such as data processing, communication with external systems, or background tasks.

• Examples of services include web services, REST APIs, and microservices.

• Services can run independently of the user interface and can be accessed by multiple components with
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Q6. Difference between Threads and Coroutines.
Ans. 
Threads are independent sequences of execution within a process, while coroutines are cooperative routines that can pause and resume.
• Threads are managed by the operating system, while coroutines are managed by the programmer.

• Threads run concurrently and can execute in parallel on multiple cores, while coroutines are typically single-threaded.

• Threads have their own stack and memory space, while coroutines share the same...read more
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Q7. How we can perform background tasks in Android?
Ans. 
Background tasks in Android can be performed using services, AsyncTask, JobScheduler, or WorkManager.
• Use Services for long-running tasks in the background

• AsyncTask for short background tasks that need to interact with the UI

• JobScheduler for deferrable background tasks that require network connectivity

• WorkManager for tasks that need to run reliably across different Android versions
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Q1. Djisktra Algorithm, cyclic graph, floyd warshal, Memory Threading, Semaphores, Mutex, Round Robin
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Q1. Why you are a good fit? What's your strength? Why you want to join Ola? Past mishaps?
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Q1. Tell me about About yourself
Ans. 
I am a passionate software developer with experience in Java, Python, and web development.
• Experienced in Java, Python, and web development

• Strong problem-solving skills

• Team player with excellent communication skills
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Q2. Describe your projects
Ans. 
I have worked on various projects including web development, mobile app development, and data analysis.
• Developed a web application for a small business to manage inventory and sales

• Created a mobile app for tracking fitness goals and progress

• Performed data analysis on customer feedback to improve user experience
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Q3. How you implement machine learning algorithms in cars
Ans. 
Machine learning algorithms in cars are implemented through sensors, data collection, training models, and real-time decision-making.
• Collecting data from various sensors installed in the car, such as cameras, lidar, radar, and GPS.

• Training machine learning models using the collected data to recognize patterns and make predictions.

• Implementing real-time decision-making algorithms in the car's onboard computer to assist ...read more
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Q1. Basic oop questions
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Q1. Current work background
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Q2. C pointers concept
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Q3. Rtos concepts were asked
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Q4. Given a tech situation, they judged my thought process, that how I perceive a problem
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