Yazaki Data Engineer Interview Questions and Answers

Q1. How you load the data using delta table in adf
Ans. 
You can load data using delta table in ADF by using the Copy Data activity and specifying the delta format.
• Use the Copy Data activity in ADF to load data into a delta table

• Specify the delta format in the sink settings of the Copy Data activity

• Ensure that the source data is compatible with the delta format
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Aptitude round consists of aptitudes and some pseudocode snippets to solve and it also had one medium level coding question and one hard level coding question.

Q1. Write a pattern pyramid number in Java
Ans. 
Pattern pyramid number in Java
• Use nested loops to print the pyramid pattern

• Increment the number in each row

• Handle spaces for proper alignment
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Q2. Write a C program to find Factorial of a number
Ans. 
A C program to find the factorial of a number using recursion
• Use a recursive function to calculate the factorial

• Handle the base case when the number is 0 or 1

• Multiply the number with the factorial of (number-1) in each recursive call
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Q3. What is Little endian and Big endian in C
Ans. 
Little endian and Big endian are byte ordering formats in which multi-byte data is stored in memory.
• Little endian: Least significant byte is stored at the lowest memory address.

• Big endian: Most significant byte is stored at the lowest memory address.

• Example: In Little endian, the number 0x12345678 is stored as 78 56 34 12 in memory.

• Example: In Big endian, the same number is stored as 12 34 56 78 in memory.
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Q4. Why do you use Docker and Git
Ans. 
I use Docker for containerization to easily manage and deploy applications, and Git for version control to collaborate and track changes.
• Docker allows for consistent development environments across different machines

• Git helps track changes, collaborate with team members, and revert to previous versions if needed

• Both tools improve efficiency and productivity in software development
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Q5. Draw architecture diagram for your Machine Learning Project
Ans. 
The architecture diagram for a Machine Learning project typically includes data preprocessing, model training, evaluation, and deployment stages.
• Data preprocessing stage involves cleaning, transforming, and preparing the data for model training.

• Model training stage includes selecting the appropriate algorithm, training the model on the data, and tuning hyperparameters.

• Evaluation stage involves assessing the model's per...read more
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Q1. Tell me about your family
Ans. 
I come from a close-knit family of four, including my parents and younger sister.
• My parents have always been supportive of my career choices and encouraged me to pursue my passion for software engineering.

• My younger sister is currently studying computer science and we often collaborate on coding projects together.

• Family gatherings are important to us and we enjoy spending quality time together, whether it's celebrating
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Q2. Which is your favorite subject and why
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Q3. What will you do if you get rejected in this round
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Q1. How would you preprocess the raw data
Ans. 
Preprocessing raw data involves cleaning, transforming, and organizing data to make it suitable for analysis.
• Remove any irrelevant or duplicate data

• Handle missing values by imputation or deletion

• Normalize or standardize numerical data

• Encode categorical variables using techniques like one-hot encoding

• Feature scaling for machine learning algorithms

• Perform text preprocessing like tokenization and stemming
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Q2. How would you specify a solution that has been already existing
Ans. 
Specify the existing solution by documenting its architecture, components, technologies used, and any modifications made.
• Document the architecture of the solution, including high-level components and their interactions

• List the technologies used in the solution, such as programming languages, frameworks, and databases

• Describe any modifications or customizations made to the existing solution

• Include any performance metric...read more
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Q1. Embedded qns and oops qns
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Q2. What is virtual function
Ans. 
A virtual function is a function in a base class that is declared using the keyword 'virtual' and can be overridden by a function with the same signature in a derived class.
• Virtual functions allow for dynamic polymorphism in object-oriented programming.

• They are used to achieve runtime polymorphism by allowing a function to be called based on the type of object it is called on.

• Virtual functions are declared in a base cl...read more
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Q3. What is polymorphism
Ans. 
Polymorphism is the ability of a function or method to behave differently based on the object it is acting upon.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• It enables a single interface to be used for different data types or classes.

• Examples include method overloading and method overriding in object-oriented programming.
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Q4. Please don't attend this interview
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Q5. Idon'tknow hahab
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About Growing of AI Technology

Q1. Tell me about your self
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Q1. Self introduction Technical problems
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Q2. Current project, jsksksosls jsksosos ksksk
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Q1. About yourself, education, family, native
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Q2. Current salary, expectations notice period
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Q1. What are your strengths and weakness?
Ans. My strength is Hardworking weakness are focusing on every details which makes my work time consuming
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Q1. What is Watchdog timer?
Ans. 
A Watchdog timer is a hardware or software mechanism that automatically resets or restarts a device if it stops responding or functioning properly.
• Watchdog timer is used to prevent system crashes or freezes by monitoring the system and resetting it if necessary.

• It is commonly used in embedded systems, where reliability is crucial.

• The timer needs to be periodically reset by the software to prevent the system from resett...read more
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Q2. What is Compiler?
Ans. 
A compiler is a software program that translates code written in a high-level programming language into machine code.
• Converts high-level code to machine code

• Checks for syntax errors

• Optimizes code for better performance

• Examples: GCC, Clang, Visual C++
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Q3. What is volatile memory?
Ans. 
Volatile memory is temporary memory that loses its data when power is turned off.
• Volatile memory requires constant power to retain data

• Examples include RAM (Random Access Memory) and cache memory

• Data stored in volatile memory is lost when the device is turned off
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Q1. Do you like Bangalore?
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Q2. What is your favourite festival?
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Q3. Do you like to work something from the start or can something which already worked by someone else?
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Coding test, on C, around 1 hr, on teams

Q1. C basics Embedded C Aptitude
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