Sierra Circuits Design Engineer Interview Questions and Answers

Q1. Ofdm, equalization, estimation
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Q1. Explain storage variables in C?
Ans. 
Storage variables in C are used to store data temporarily during program execution.
• Storage variables in C are declared using data types like int, float, char, etc.

• They can be stored in different memory locations like stack, heap, or data segment.

• Variables declared outside functions have global scope and are stored in data segment.

• Variables declared inside functions have local scope and are stored in stack memory.

• Dynami...read more
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Q2. Take two numbers, reverse both, then perform addition and reverse again?
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Q3. First three kinds of sorting
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The first three kinds of sorting are bubble sort, selection sort, and insertion sort.
• Bubble sort compares adjacent elements and swaps them if they are in the wrong order.

• Selection sort selects the smallest element and swaps it with the first element, then selects the second smallest element and swaps it with the second element, and so on.

• Insertion sort builds the final sorted array one item at a time by inserting each
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Q4. Output questions based on pointers in C
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Q1. Ofdm, equalization, estimation
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Q1. CDC technique , and why need of CDC
Ans. 
CDC stands for Clock Domain Crossing technique used in digital design to ensure proper data transfer between different clock domains.
• CDC technique involves synchronizing data signals when crossing between different clock domains to prevent metastability issues.

• It is necessary because different clock domains operate at different frequencies and can lead to data corruption if not properly synchronized.

• Common CDC techniqu...read more
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Q2. How to transfer multiple bits in CDC
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Transfer multiple bits in CDC involves using a parallel data transfer method.
• Use parallel data transfer method to transfer multiple bits simultaneously

• Implement a shift register to store and shift out multiple bits

• Utilize multiplexers to select and transfer specific bits

• Consider using a bus architecture for efficient data transfer
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Basic coding questions and questions based on resume

Q1. About the latest qualification.
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Q2. About previous employment
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Q3. About my motivation to join
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Aptitude and basic physics was tested

Basic programming round has the questions which can be solved within 10 minutes

Q1. How to design batteries
Ans. 
Designing batteries involves determining the required capacity, voltage, and chemistry, selecting appropriate materials, and optimizing the design for performance and safety.
• Determine required capacity, voltage, and chemistry based on application

• Select appropriate materials for electrodes, electrolyte, and casing

• Optimize design for performance and safety, considering factors such as temperature, discharge rate, and cyc...read more
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Q2. Explain the design by discussing with group
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Design discussion with group involves sharing ideas and collaborating to create a functional and efficient solution.
• Discuss project goals and requirements

• Brainstorm ideas and potential solutions

• Evaluate feasibility and potential challenges

• Collaborate to create a design that meets project goals

• Refine and iterate design as necessary
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Q1. Basic Electronics (both digital & analog)
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Basic Aptitude (numbers, direction, algebra)

Q1. Basics of Digital Electronics and AMBA Protocol
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Q1. Basics of Memory (RAM & ROM) and course project discussion
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Q1. Discussion about offer letter and location
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Q1. Why do you want to work for Samsung Semiconductor?
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Questions on my previous relevant experience