Questions d'entretiens - Embedded systems engineer

268

Questions d'entretien pour Embedded Systems Engineer partagées par les candidats

Principales questions d'entretien

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Gemalto
On a demandé à un Software Engineer Embedded Systems...11 août 2014

How to swap 2 variables without using a third variable. And the team leader asked to write a code snippet for assigning 5 colors to the countries on the world map so that no adjacent country has same color.

2 réponses

Use XOR

x = x + y; y = x - y; x = x - y;

Zoox

Calculate the average rain in a regions when the values are positive, List given with integers, positive and negative

2 réponses

Took the sum of all positive ints in the list and divided by the count of positive ints Moins

It's essential to demonstrate that you can really go deep... there are plenty of followup questions and (sometimes tangential) angles to explore. There's a lot of Embedded Systems Engineer experts who've worked at Zoox, who provide this sort of practice through mock interviews. There's a whole list of them curated on Prepfully. prepfully.com/practice-interviews Moins

Appareo Systems

There was mostly technical questions like determine the output of a voltage divider and what it would represent in a 10-Bit decimal number?

2 réponses

2^10 = 1024 so numbers range from 0-1024

I was in that interview as well. The question was "what is the range of a 10-bit analog to digital converter?" You have a 1024-bit range with starting index of 0. Thus, 0-1023 is the correct answer. Moins

Questions were asked on Logic Design, Aptitude and also Microprocessors

2 réponses

My interview was a little bit different. I applied for digital domain initially for the written exam. After clearing the written exam I was sent into the Panel of logic design(there were three panels for three domains i.e. digital, embedded, analog) wherein he asked me some questions on logic design where i was unable to answer them completely. Therefore he gave me a choice to select one among three(C programming, aptitude, logic design) for the questions to be asked. I chose aptitude. He gave me 5 puzzles in which I was able to crack 4 of them. Later I was sent to the Embedded panel where he drilled down on microprocessors. I was able to perform well there. This entire process took around 3 hours to complete. Overall it was a very good experience. They'll surely test you on your subject knowledge. Moins

Microprocessor which concept we have to learn 8085 or 8086

Nortek

Using C code write a routine to find a 32 bit frame start sequence in a raw byte stream buffer.

2 réponses

Wrote code to perform the task taking care to understand byte alignment issues.

Let buf be the buffer, BUF_SIZE be it's size, ref_frame be the reference frame int i = 0, j = 0; while(i Moins

BlackBerry

Write a function that will return x*7 without using multiplication?

2 réponses

You could either do this by macro or inline (it usually would be inlined). inline int mulby7(int x) { return (x << 3) - x; } Moins

int func(int x) { return (x<3)-x; }

Arecont Vision

Explain the TCP state diagram.

1 réponses

Passed. Didn't want to waste interviewer's time.

Nortek

Using C++ code, write a linked list insertion method.

1 réponses

Wrote code to perform the task

Valeo

introduce your self

1 réponses

Ahmed Ehab Yehia Shawky , a graduate of 2020 faculty of engineering alexandria university , graduated with very good with honors degree Moins

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