Light Tree Ventures Embedded Firmware Developer Interview Questions and Answers

Basic questions on C such as storage classes, pointers and more.

For coding, I was asked to write a LinkedList using C and insert a node in the LinkedList. Very straight forward.

Q1. MQTT experience
Ans. 
Experience with MQTT protocol for communication in IoT devices.
• Developed firmware using MQTT protocol for real-time communication

• Implemented MQTT client libraries in embedded systems

• Worked on MQTT topics, QoS levels, and message retention policies
Answered by AI
Add your answer
Q2. Networking protocol
Add your answer
Q3. Bitfields - what are they?
Add your answer

Q1. Expected salary?
Add your answer
Q2. Notice period discussion
Add your answer

Q1. Volatile keyword
Add your answer
Q2. Project specific
Add your answer

Q1. Salary expectations
Add your answer
Q2. Reason for job change
Add your answer

Q1. Polymorphism code?
Add your answer
Q2. Ho can you start a sequences
Ans. 
To start a sequence, you need to define the sequence type, specify the starting value, and set the increment or decrement value.
• Define the sequence type: arithmetic, geometric, or custom

• Specify the starting value of the sequence

• Set the increment or decrement value for arithmetic or geometric sequences

• For custom sequences, define the sequence pattern or rule

• Examples: Arithmetic sequence starting from 1 with an increment...read more
Answered by AI
Add your answer
Q3. What is abstract class? Some basic sc and UVM questions
Add your answer
Q4. Question over mentioned projects?
Add your answer

Percentage, speed, series, logical abulity, differnces

Q1. C programs, protocols, Embedded C, pointers
Add your answer
Q2. Strings swapping nibbles using c
Ans. 
Swapping nibbles of strings in C
• Use bitwise operations to swap the nibbles of each character in the string

• Iterate through each character in the string and swap the nibbles

• Ensure to handle edge cases like strings with odd length or non-hex characters
Answered by AI
Add your answer
Q3. I2c, can, spi, uart
Add your answer

Q1. Normal hr questions
Add your answer
Q2. Self, company details
Add your answer

Q1. Basic question on coding , digital electronics
Add your answer
Q2. Difference between d ram and s ram
Ans. 
DRAM is volatile memory that stores data temporarily, while SRAM is faster and more expensive but retains data as long as power is supplied.
• DRAM stands for Dynamic Random Access Memory, while SRAM stands for Static Random Access Memory.

• DRAM requires refreshing to retain data, while SRAM does not.

• DRAM is slower and less expensive than SRAM.

• Examples of DRAM include DDR3 and DDR4, while examples of SRAM include L1, L2, an
Answered by AI
Add your answer

Very basic c questions like an array

Q1. Programing language
Add your answer

Syllabus based question

Q1. Introduction, education
Add your answer

There were questions covering all the topic of the aptitude sections, prepare well

Hacker Rank was used as a coding platform consisting of 15 questions

Q1. Hardware knowledge tested
Add your answer

Q1. Software Knowledge tested basically command over language
Add your answer

Q1. Normal HR questions with GD
Add your answer