Aptiv Software Engineer Interview Questions, Process, and Tips

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. 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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