Technosphere Labs Embedded Software Developer Interview Questions and Answers

Q1. Volatile keyword
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Q2. Project specific
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Q1. Salary expectations
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Q2. Reason for job change
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+ C and C++concepts.
+ RTOS
+ Multi threading

Q1. What are storage class
Ans. 
Storage classes in C specify the scope and lifetime of variables.
• Storage classes include auto, register, static, and extern.

• Auto variables are local to a block and have automatic storage duration.

• Register variables are stored in CPU registers for faster access.

• Static variables retain their value between function calls.

• Extern variables are declared in one file and can be used in another file.
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Q2. Explain structure program
Ans. 
A structure program is a program that uses structures to group related data together.
• Structures in C programming allow you to group related data together under one name.

• You can define a structure using the 'struct' keyword.

• Structures can contain different data types, including int, float, char, and even other structures.

• You can access the members of a structure using the dot operator.

• Example: struct employee { int id; ...read more
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Topic:
Explain automatic cruise control?
What parameters will you send to the user from sensor attached on bumper of a car?

Q1. Didn't proceed to the second round. Due to mismatch of domain experience.
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Q2. Due to mismatch of domain experience
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Very easy, basic questions

Written test
C programming

Q1. Basic question from my Resume and Work/Projects
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Q2. Technical Question : Stackoverflow, Queue, Virtual Class/Keyword, Pointers, Linked List
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Q3. Memory Stack, Local/Glabal/Staic Variable stored where?
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Q4. Direct Memory Access, Heap, Stack, Dyanamic Memory Allocation, memory Segmentation fault
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Q5. Difference between Timer and counters?
Ans. 
Timers are used to measure time intervals, while counters are used to count events or occurrences.
• Timers are typically used for generating delays, measuring time intervals, or triggering events at specific times.

• Counters are used to count external events, such as pulses or interrupts.

• Timers can be used to implement software delays, while counters can be used for tasks like frequency measurement.

• Examples: A timer can be...read more
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Q1. What is embedded c
Ans. 
Embedded C is a programming language used for developing software for embedded systems.
• Embedded C is a subset of the C programming language.

• It is optimized for resource-constrained systems with limited memory and processing power.

• It allows direct access to hardware and provides low-level control.

• Embedded C is used in various industries like automotive, aerospace, consumer electronics, etc.

• Example: Writing code to contr...read more
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Q2. Refer embedded c
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