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Normal basic apti lr conceptual questions
A microcontroller is a small computer on a single integrated circuit that contains a processor core, memory, and programmable input/output peripherals.
Microcontrollers are commonly used in embedded systems for controlling various devices and appliances.
They are programmed using languages like C or assembly language.
Examples of popular microcontrollers include Arduino, Raspberry Pi, and PIC.
Microcontrollers are often us...
I2C is a serial communication protocol used to connect multiple devices with two wires. SPI is another serial protocol with four wires.
I2C uses a master-slave architecture while SPI uses a master-master architecture.
I2C supports multiple devices on the same bus while SPI requires a separate chip select line for each device.
Hardware interrupts are triggered by external events while software interrupts are triggered by s
I applied via Campus Placement and was interviewed before Mar 2023. There was 1 interview round.
Compilation of a C program involves preprocessing, compiling, assembling, and linking.
Preprocessing: Includes header files, macro expansions, and comments removal. Example: gcc -E program.c
Compiling: Translates source code to assembly code. Example: gcc -S program.c
Assembling: Converts assembly code to machine code. Example: gcc -c program.s
Linking: Combines object files and libraries to generate executable. Example: g
Storage classes in C define the scope and lifetime of variables.
Storage classes include auto, register, static, extern, and typedef.
Auto variables are local to the block they are declared in.
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.
Typedef is used to create new data typ
A computer boots up by executing the BIOS, loading the operating system into memory, and initializing hardware components.
BIOS (Basic Input/Output System) is the first code executed by a computer when powered on.
BIOS performs a Power-On Self Test (POST) to check hardware components.
BIOS then locates and loads the operating system from the boot device (e.g. hard drive, SSD, USB).
The operating system is loaded into memor...
I applied via Campus Placement and was interviewed before Mar 2023. There were 2 interview rounds.
All about aptitude questions and test has multiple rounds
Asked about basic code like palindrome, string reverse
L&T Technology Services interview questions for designations
I applied via Other and was interviewed in Aug 2021. There were 4 interview rounds.
I applied via Campus Placement and was interviewed before Sep 2021. There were 5 interview rounds.
Medium level difficulty
Pseudo code and two partial codes of array logic with disired output in 25 mins.
Top trending discussions
I applied via Approached by Company and was interviewed before Apr 2021. There were 3 interview rounds.
My resume
I applied via Company Website and was interviewed before Sep 2021. There were 2 interview rounds.
2 coding questions which are of easy level
I applied via Walk-in and was interviewed before Jul 2021. There was 1 interview round.
I applied via Campus Placement and was interviewed before Jan 2021. There were 2 interview rounds.
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