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I applied via LinkedIn and was interviewed before Apr 2022. There were 2 interview rounds.
1 NAND gate can be used to make 2 combinations of inverter.
A NAND gate can be used to make an inverter by connecting both inputs together.
The output of the NAND gate will be the inverted input.
Thus, there are 2 possible combinations of inverter using just 1 NAND gate.
Using 2:1 mux, implement inverter, AND gate, OR gate.
For inverter, connect one input to select line and other input to ground
For AND gate, connect one input to select line and other input to input signal, output is inverted
For OR gate, connect one input to select line and other input to input signal, output is not inverted
Use truth tables to verify functionality
A 4:1 mux can be implemented using two 2:1 muxes.
Connect the select line of both 2:1 muxes to the same select line of the 4:1 mux.
Connect the output of one 2:1 mux to the input of the other 2:1 mux.
Connect the inputs of both 2:1 muxes to the corresponding inputs of the 4:1 mux.
The output of the 4:1 mux is the output of the second 2:1 mux.
Ring, Johnson, Sync and Async counters are types of digital counters used in electronics.
Ring counter is a circular shift register with only one flip-flop set to 1 at a time.
Johnson counter is a modified ring counter with complemented output of the last flip-flop fed back to the input.
Sync counters use a common clock signal for all flip-flops while Async counters use individual clock signals.
Examples of Sync counters a...
Shift registers are sequential circuits that can store and shift data bits.
Shift registers are made up of flip-flops that store data bits.
Data can be shifted left or right through the register.
Shift registers can be used for serial-to-parallel or parallel-to-serial conversion.
Examples of shift registers include the Serial-in-Parallel-out (SIPO) and Parallel-in-Serial-out (PISO) registers.
Flip-flop conversion from DFF to JKFF
Determine the excitation table for JK flip-flop
Use the excitation table to derive the input equations for J and K
Replace D input with J and K inputs in DFF circuit
Verify the functionality of the converted JKFF circuit
Verilog supports various data types including integer, real, reg, wire, and time.
Integer data type is used for whole numbers
Real data type is used for decimal numbers
Reg data type is used for sequential logic
Wire data type is used for combinational logic
Time data type is used for simulation time
Data types can be declared using keywords like 'integer', 'real', 'reg', 'wire', and 'time'
Data types can also be declared wit...
Tasks are concurrent and functions are sequential in execution.
Tasks can run concurrently and can communicate with each other using shared variables.
Functions are executed sequentially and return a value to the calling function.
Tasks can be used for parallel processing and can be scheduled by the operating system.
Functions are used for modular programming and can be called from other functions or tasks.
Example: A task ...
Blocking waits for a process to complete before moving to the next, while non-blocking allows for concurrent execution.
Blocking assignments use '=' operator, while non-blocking use '<=' operator.
Blocking assignments are executed sequentially, while non-blocking assignments are executed concurrently.
Blocking assignments are used for combinational logic, while non-blocking assignments are used for sequential logic.
Exampl
Universal gates are logic gates that can be used to implement any Boolean function.
Universal gates are NAND and NOR gates.
They are called universal because they can be used to implement any Boolean function.
This is because NAND and NOR gates are functionally complete.
This means that any Boolean function can be expressed using only NAND or NOR gates.
Other gates like AND, OR, and NOT gates are not functionally complete.
F...
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I was interviewed in Aug 2017.
I was interviewed in Aug 2017.
I lack experience in a specific technology required for the role.
I may not have experience with a specific programming language or framework mentioned in the job description.
I may not have worked on projects similar to what your company is working on.
I may not have experience with certain tools or technologies that are crucial for the role.
I applied via Campus Placement and was interviewed in Dec 2016. There were 5 interview rounds.
AC and DC are two types of electrical current with different characteristics.
AC stands for Alternating Current, while DC stands for Direct Current.
AC periodically changes direction, while DC flows in one direction.
AC is commonly used in household electrical systems, while DC is used in batteries and electronic devices.
AC can be easily transformed to different voltage levels using transformers, while DC requires convert...
Fill the cells in the pyramid
The pyramid is a pattern of numbers or characters arranged in a triangular shape
Each row of the pyramid has one more cell than the previous row
Start filling the pyramid from the top and move downwards
The cells can be filled with any desired numbers or characters
An alternator and generator are devices that convert mechanical energy into electrical energy.
Both alternators and generators are used to generate electricity.
They work on the principle of electromagnetic induction.
Alternators are commonly used in modern vehicles to charge the battery and power the electrical systems.
Generators are often used as backup power sources during power outages.
Examples of alternators include ...
Quick sort has an average and worst-case time complexity of O(n log n).
Quick sort is a divide-and-conquer algorithm.
It selects a pivot element and partitions the array around the pivot.
The average and worst-case time complexity is O(n log n).
However, in the worst-case scenario, it can have a time complexity of O(n^2).
I developed a mobile app for tracking daily water intake and hydration levels.
Researched best practices for hydration tracking
Designed user-friendly interface for inputting water intake
Implemented data visualization for tracking hydration levels
Tested app with focus groups for feedback
Continuously updated app based on user suggestions
SHA Algorithm is a cryptographic hash function that takes an input and produces a fixed-size output.
SHA stands for Secure Hash Algorithm.
It is widely used in various security applications and protocols.
SHA-1, SHA-256, SHA-384, and SHA-512 are common variants of SHA.
It generates a unique hash value for each unique input.
The output is a fixed length, regardless of the input size.
SHA is used for data integrity, password h
To delete a node in a linked list, we need to adjust the pointers of the previous node and the next node.
Find the node to be deleted
Adjust the pointers of the previous node and the next node
Free the memory of the deleted node
I am a passionate software engineer with experience in developing web applications and a strong background in computer science.
Experienced in developing web applications using technologies like HTML, CSS, JavaScript, and React
Strong background in computer science with knowledge of data structures and algorithms
Proficient in programming languages such as Java, Python, and C++
Familiar with Agile development methodologies
As an intern supervisor, I faced challenges in terms of communication, technical skills, and time management.
Communication barriers due to language or cultural differences
Lack of technical skills or knowledge required for the job
Difficulty in managing time and meeting deadlines
Inability to work independently or as part of a team
Resistance to feedback or constructive criticism
Limited exposure to real-world scenarios and...
I prefer a job place that offers a collaborative and innovative work environment.
Prefer a workplace that encourages teamwork and communication
Value opportunities for learning and growth
Seek a company that fosters creativity and innovation
I will solve disputes by promoting open communication, active listening, and finding mutually beneficial solutions.
Encourage open and honest communication between parties involved
Actively listen to each party's concerns and perspectives
Identify common goals and interests to find mutually beneficial solutions
Mediate discussions and facilitate negotiations if necessary
Document agreements and ensure follow-up to prevent f
Qualcomm is a leading semiconductor and telecommunications equipment company.
Qualcomm is known for its expertise in wireless technologies and mobile chipsets.
They have developed popular Snapdragon processors used in smartphones and tablets.
Qualcomm has made significant contributions to the advancement of 5G technology.
The company has a strong patent portfolio and is involved in licensing its technology to other manufac...
I applied via Campus Placement and was interviewed in Dec 2016. There were 4 interview rounds.
I was interviewed in Dec 2016.
I was interviewed in Sep 2016.
Code for scheduling in C
Define a struct for the task with fields like start time, end time, priority, etc.
Create an array of tasks and sort them based on priority and start time
Implement a scheduling algorithm like Round Robin or Priority Scheduling
Use system calls like fork() and exec() to create and execute processes
Implement synchronization mechanisms like semaphores or mutexes to avoid race conditions
I applied via Campus Placement
Static, volatile, const are C keywords used to define properties of variables.
Static: used to define a variable that retains its value between function calls
Volatile: used to indicate that a variable's value may change unexpectedly, e.g. in an interrupt
Const: used to define a variable whose value cannot be changed once initialized
Pseudo code to remove a node from a linked list
Find the node to be removed
Update the previous node's next pointer to point to the next node
Free the memory occupied by the removed node
ISR stands for Interrupt Service Routine. It is managed by prioritizing interrupts and handling them in a timely manner.
Prioritize interrupts based on their importance
Handle interrupts in a timely manner to prevent delays in the system
Ensure that the ISR does not interfere with the normal flow of the program
Test the ISR thoroughly to ensure that it works as expected
Use appropriate tools and techniques to debug any issu
Task is a unit of work, process is an instance of a program, and thread is a subset of a process.
Task is a single unit of work that needs to be completed.
Process is an instance of a program that is being executed.
Thread is a subset of a process that can run concurrently with other threads.
A process can have multiple threads, but a thread can only belong to one process.
Threads share the same memory space, while processe...
Multi-threading, multi-processing and multi-tasking are different ways of achieving parallelism in computing.
Multi-threading is a technique of dividing a single process into multiple threads that can run concurrently.
Multi-processing is a technique of dividing a single process into multiple processes that can run concurrently.
Multi-tasking is a technique of running multiple processes or tasks concurrently on a single p...
Mutex is a synchronization mechanism used to prevent multiple threads from accessing shared resources simultaneously.
Mutex stands for mutual exclusion.
It is used to protect shared resources from race conditions.
Mutex provides exclusive access to a shared resource.
It is used in multi-threaded programming.
Mutex can be implemented using locks or semaphores.
I am a software engineer with experience in developing web applications and mobile apps.
Developed a web application for a retail company using React and Node.js
Created a mobile app for a fitness startup using React Native
Worked on a project to automate data entry for a healthcare organization using Python
Contributed to an open-source project for a social media platform using Ruby on Rails
I enjoy reading, playing video games, and hiking.
Reading: I love to read books on various topics, including science fiction, history, and philosophy.
Video games: I enjoy playing games that challenge my problem-solving skills, such as puzzle games and strategy games.
Hiking: I like to explore new trails and enjoy the beauty of nature.
Qualcomm is a semiconductor and telecommunications equipment company based in San Diego, California.
Qualcomm is a leading provider of wireless technology and services.
They are known for their Snapdragon processors used in smartphones and other devices.
Qualcomm has been involved in several legal disputes with Apple and other companies over patent infringement.
They also have a strong presence in the development of 5G tec...
I was interviewed in Sep 2016.
Developed a web application for online shopping with user authentication and payment gateway integration.
Implemented user authentication using JWT tokens
Integrated Stripe API for payment processing
Designed responsive UI using React and Bootstrap
Insertion in binary search trees involves finding the appropriate position for a new node based on its value.
Start at the root node and compare the value of the new node with the current node.
If the new node's value is less than the current node, move to the left child node.
If the new node's value is greater than the current node, move to the right child node.
Repeat the comparison and movement until reaching a leaf nod...
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