20+ KB AutoTech India Interview Questions and Answers

I have completed over 50 coding questions on platforms like LeetCode and HackerRank using languages such as Python and Java.

• Completed over 50 coding questions

• Platforms used: LeetCode, HackerRank

• Languages used: Python, Java

Create a matrix of size n,m using pointers dynamically

• Allocate memory for n pointers to char arrays

• Allocate memory for each char array to store m elements

• Access elements using pointer arithmetic

AMD stands for Advanced Micro Devices, a multinational semiconductor company known for its CPUs and GPUs.

• AMD is a major competitor to Intel in the CPU market.

• They are also known for their Radeon graphics cards.

• AMD's Ryzen processors have gained popularity for their performance and value.

• The company was founded in 1969 and is headquartered in California, USA.

Reverse linked list in groups of k

• Iterate through the linked list in groups of k

• Reverse each group of k nodes

• Connect the reversed groups back together

Fill the 3L cup, pour it into the 5L cup, fill the 3L cup again, pour into the 5L cup until it's full, leaving 1L in the 3L cup.

• Fill the 3L cup

• Pour the water from the 3L cup into the 5L cup

• Fill the 3L cup again

• Pour the water from the 3L cup into the 5L cup until it's full, leaving 1L in the 3L cup

Find the missing element in an array of strings

• Iterate through the array and check for any missing elements

• Use a hash set to keep track of elements that have been seen

• Compare the elements in the array to a reference array to find the missing element

I have experience working with AWS, Azure, and Google Cloud Platform.

• Managed databases on AWS RDS and Aurora

• Implemented data pipelines on Azure Data Factory

• Utilized Google Cloud SQL for database management

I have extensive coding experience in SQL, Python, and Java.

• Proficient in SQL for database management and querying

• Skilled in Python for data analysis and automation tasks

• Familiar with Java for application development

Designing a digital system for detecting start bit in UART communication

• The start bit is the first bit in a UART transmission and is always a logic low

• The system should sample the incoming data at a rate higher than the baud rate to accurately detect the start bit

• A shift register can be used to store the incoming data and detect the start bit

• The system should also check for framing errors and parity errors

Blocking statements halt program execution until the statement is complete, while nonblocking statements allow the program to continue executing while waiting for the statement to complete.

• Blocking statements can cause the program to hang or become unresponsive if the statement takes a long time to complete.

• Nonblocking statements are often used in asynchronous programming to allow multiple tasks to be executed simultaneously.

• Examples of blocking statements include synchronous...read more

UART protocol can be used to transmit and receive data between two devices.

• UART can be used to communicate between a microcontroller and a computer

• UART can be used to send and receive data between two microcontrollers

• UART can be used to interface with sensors and actuators

• UART can be used to implement a simple command/response protocol

• UART can be used to implement a data logging system

UART can be used to receive signals from a microcontroller.

• Connect the UART pins of the microcontroller to the UART pins of the receiving device.

• Configure the UART settings such as baud rate, parity, and stop bits.

• Use a UART library or write code to read the incoming data from the UART buffer.

• Process the received data as required by the application.

Kernel mode layer is the privileged mode of the operating system where critical system functions are executed, while user mode layer is where user applications run with limited access to system resources.

• Kernel mode layer has direct access to hardware and can execute privileged instructions.

• User mode layer runs user applications and has restricted access to system resources.

• Examples of kernel mode functions include memory management, process scheduling, and device drivers.

• Exa...read more

Merge two sorted linked lists without using extra space

• Use a dummy node to start the merged list

• Compare the values of the nodes in both lists and link the smaller one to the merged list

• Move the pointer of the merged list and the pointer of the smaller node to the next node

Bill of Materials (BOM) is a comprehensive list of raw materials, components, and assemblies required to build a product.

• BOM is used in manufacturing to ensure all necessary materials are available for production.

• It includes details such as part numbers, quantities, and descriptions of each item.

• BOM can be hierarchical, with sub-assemblies listed under main assemblies.

• It helps in cost estimation, inventory management, and production planning.

• Example: A BOM for a bicycle would...read more

A NAND gate can be implemented using CMOS technology by combining a PMOS and NMOS transistor in series.

• Use a PMOS transistor in series with an NMOS transistor to create the logic gate.

• Connect the output of the PMOS transistor to the input of the NMOS transistor.

• When both inputs are high, the PMOS transistor conducts and the NMOS transistor is off, resulting in a low output.

• When either input is low, the corresponding transistor will be off, allowing the other transistor to con...read more

Rotate a single linked list

• Create a new pointer to the last node of the linked list

• Make the next of the last node point to the head of the linked list

• Make the head of the linked list point to the second node

• Update the new last node to point to null

UVM (Universal Verification Methodology) basic principle is to provide a standardized methodology for verifying digital designs.

• UVM is based on SystemVerilog and provides a framework for creating reusable verification environments

• It promotes the use of object-oriented programming techniques for creating modular and scalable testbenches

• UVM encourages the use of constrained-random stimulus generation and coverage-driven verification

• It includes components such as sequences, driv...read more

This pen is a sleek and stylish writing instrument that is perfect for everyday use.

• The pen features a smooth ballpoint tip for effortless writing

• Its ergonomic design ensures comfortable grip for long writing sessions

• The pen comes in a variety of colors to suit your personal style