Yazaki Software Engineer Interview Questions and Answers

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
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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. What is the smart pointers?
Ans. 
Smart pointers are objects that store a pointer to dynamically allocated memory and provide automatic memory management.
• Smart pointers help prevent memory leaks by automatically releasing memory when the pointer is no longer needed.

• Examples include unique_ptr, shared_ptr, and weak_ptr in C++.

• unique_ptr is used for exclusive ownership, shared_ptr for shared ownership, and weak_ptr to break circular references.
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Q2. What is the lamda function?
Ans. 
A lambda function is a small anonymous function defined in a single line of code without a name.
• Lambda functions are often used in programming languages that support functional programming.

• They are commonly used for short, simple operations that do not require a named function.

• Lambda functions can take any number of arguments but can only have one expression.

• Example: lambda x: x*2 defines a lambda function that doubles
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Q1. What is threading?
Ans. 
Threading is a way for a program to split itself into multiple simultaneous tasks.
• Threading allows for parallel execution of tasks within a program.

• Each thread has its own stack and runs independently of other threads.

• Threads can communicate with each other and share resources.

• Example: A web server handling multiple client requests concurrently using threads.
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Q2. What is lamda function?
Ans. 
Lambda function is an anonymous function in programming that can have multiple parameters and can be used as an argument to other functions.
• Lambda functions are also known as anonymous functions because they do not have a name.

• They are often used for short, one-time tasks that do not require a separate function definition.

• Lambda functions can take multiple parameters and return a single value.

• Example: lambda x, y: x + ...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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Q1. Explain embedded systems
Ans. 
Embedded systems are specialized computing systems designed to perform specific tasks within a larger system.
• Embedded systems are typically found in everyday devices such as smartphones, cars, and household appliances.

• They are designed to be efficient, reliable, and often operate in real-time.

• Embedded systems often have limited resources such as memory and processing power.

• Examples of embedded systems include microcont...read more
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Q2. What are deadlocks
Ans. 
Deadlocks are situations in which two or more processes are unable to proceed because each is waiting for the other to release a resource.
• Deadlocks occur in multitasking environments where processes compete for limited resources.

• Four conditions must hold for a deadlock to occur: mutual exclusion, hold and wait, no preemption, and circular wait.

• Example: Process A holds Resource 1 and waits for Resource 2, while Process ...read more
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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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Q1. Project explanation
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Q2. C syntaxes, questions on arrays pointers
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Q1. Coding related to pointers
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Q2. Recursion program
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