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posted on 14 Apr 2017
I appeared for an interview in Feb 2017.
SPI and I2C are communication protocols used for connecting devices, while latch and FF are different types of sequential logic elements.
SPI (Serial Peripheral Interface) and I2C (Inter-Integrated Circuit) are both serial communication protocols used for connecting devices in embedded systems.
SPI uses separate lines for data input and output, while I2C uses a shared bus for both input and output.
SPI supports higher dat...
To find the average speed for the whole trip, we need to know the distance and the time taken for the trip.
Average speed = Total distance / Total time
If the distance and time for the trip are known, the average speed can be calculated.
If only the average speed while going is known, we cannot determine the speed of the whole trip without additional information.
Use a sensor to detect the direction of rotation of a circular wheel by monitoring signal changes as it rotates.
Use an incremental encoder that generates pulses as the wheel rotates.
Determine direction by comparing the phase of two output signals (A and B).
If signal A leads signal B, the wheel rotates clockwise; if B leads A, it rotates counterclockwise.
Example: In a rotary encoder, the quadrature output can indicate d...
The probability of getting heads maximum two times in a series of coin flips.
To calculate the probability, divide the number of favorable outcomes by the total number of possible outcomes.
In this case, the favorable outcomes are 0, 1, or 2 heads, and the total possible outcomes are 2^n, where n is the number of coin flips.
For example, if we flip a coin 3 times, the favorable outcomes are HHT, HTH, THH, HHH, TTH, THT, a...
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I appeared for an interview before Apr 2021.
Round duration - 60 minutes
Round difficulty - Easy
The second round is also written but you need to write programming based on their concept.
Given a positive integer N
, your task is to identify all prime numbers less than or equal to N
.
A prime number is a natural number greater than 1 that has no po...
Identify all prime numbers less than or equal to a given positive integer N.
Iterate from 2 to N and check if each number is prime
Use the Sieve of Eratosthenes algorithm for better efficiency
Optimize by only checking up to the square root of N for divisors
Determine if a given string 'S' is a palindrome, considering only alphanumeric characters and ignoring spaces and symbols.
The string 'S' should be evaluated in a case...
Check if a given string is a palindrome after removing special characters, spaces, and converting to lowercase.
Remove special characters and spaces from the string
Convert the string to lowercase
Check if the modified string is a palindrome by comparing characters from start and end
Round duration - 60 minutes
Round difficulty - Easy
Technical round with questions mainly on Java and OOPS concepts.
Static methods belong to the class itself, while instance methods belong to individual objects of the class.
Static methods are called using the class name, while instance methods are called using object references.
Static methods cannot access instance variables directly, while instance methods can access both static and instance variables.
Static methods are shared among all instances of the class, while instance method...
Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.
Abstract class can have constructors, member variables, and methods with implementation.
Interface can only have abstract methods and constants.
A class can implement multiple interfaces but can only extend one abstract class.
Example: Abstract class - Animal with abstract method 'eat', Interface - Flyable with m...
ClassNotFoundException occurs when a class is not found during runtime, while NoClassDefFoundError occurs when a class was found during compilation but not during runtime.
ClassNotFoundException is a checked exception, while NoClassDefFoundError is an Error.
ClassNotFoundException occurs when a class is not found at runtime, usually due to a missing classpath or incorrect class name.
NoClassDefFoundError occurs when a cla...
Error is a serious issue that cannot be handled at runtime, while Exception is a recoverable issue that can be caught and handled.
Error is a subclass of Throwable and is usually caused by the environment or system, such as running out of memory or stack overflow.
Exception is also a subclass of Throwable but is caused by the application code, such as invalid input or file not found.
Errors are unchecked and are not meant...
SerialVersionUID is a unique identifier used by Java to ensure the compatibility of serialized objects.
SerialVersionUID is a static final long variable in a class that implements Serializable interface.
It is used to ensure that the serialized object can be deserialized correctly even if the class definition has changed.
If the SerialVersionUID of the serialized object does not match the one in the class, an InvalidClass...
Requirements for creating an immutable class in Java
Make the class final so it cannot be extended
Make all fields private and final
Do not provide setter methods, only getter methods
Ensure that mutable objects are not returned in getter methods
Override equals() and hashCode() methods for proper comparison
Consider making defensive copies of mutable fields in constructor or getter methods
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
I applied via Naukri.com and was interviewed in Mar 2023. There were 2 interview rounds.
Reactive forms in Angular are a way to build forms in a reactive and scalable way.
Reactive forms use an underlying data model to manage form data.
They allow for dynamic form creation and validation.
They can be used with complex form structures and nested forms.
They provide a more scalable and maintainable approach to form development.
Example: Creating a reactive form with FormBuilder in Angular.
I appeared for an interview in Apr 2021.
Round duration - 120 Minutes
Round difficulty - Medium
I was MCQ + Coding round, Their were MCQ Based on DSA, Aptitude and 2 easy coding questions.
Ninja is organizing a coding competition where two teams compete at a time. To keep it fair and interesting, both teams must have an equal number of members. Ninja’s ta...
Check if Ninja can create two teams with equal members given an integer N and its divisors.
Iterate through all divisors of N and assign members to the first or second team based on whether the divisor is even or odd.
Keep track of the total members in each team and check if they are equal at the end.
Return true if the total members in both teams are equal, false otherwise.
Bob has just turned 18 and opened a bank account. Being inexperienced with banking, Bob needs your help to validate whether an IFSC code provided by his bank is valid.
...Validate IFSC code based on given rules and return True or False for each test case.
Check if the code is 11 characters long.
Verify the first four characters are uppercase alphabets.
Ensure the fifth character is '0'.
Validate that the last six characters are alphanumeric.
Round duration - 50 Minutes
Round difficulty - Easy
The nature of the interviewer was very kind. The test was proctored, our webcam and mic were on, and shared my screen.
Round duration - 50 minutes
Round difficulty - Easy
The nature of the interviewer was very kind. The test was proctored, our webcam and mic were on, and shared my screen.
Tip 1 : Be strong at your basics.
Tip 2 : Do at least 2 projects and ask to find answers like why are you choosing this tech stack? why did not you choose its alternatives Know your project in and out because they might ask you for a modification in your project?
Tip 1 : Have some projects on your resume.
Tip 2 : Do not put false things on your resume.
Tip 3 : Try to keep a single-page resume.
It was combination of mcqs and 2 coding questions
Object-oriented programming concepts that focus on objects and classes for better code organization and reusability.
Encapsulation: Bundling data and methods that operate on the data into a single unit (class).
Inheritance: Ability of a class to inherit properties and behavior from another class.
Polymorphism: Ability to present the same interface for different data types.
Abstraction: Hiding the complex implementation det...
Java is a programming language while Putjon is not a recognized term in software development.
Java is a widely used programming language for developing applications.
Putjon is not a recognized term in software development, it may be a typo or a specific term not commonly used.
There is no direct comparison between Java and Putjon as they are not related.
I applied via Campus Placement and was interviewed before Oct 2022. There were 3 interview rounds.
There will be 3 coding questions, Easy, moderate and hard level.
I applied via Campus Placement and was interviewed before Oct 2023. There were 2 interview rounds.
3 coding questions - medium
I applied via Campus Placement and was interviewed in Jul 2024. There was 1 interview round.
3 hours was the duration of the test. 3 questions were asked
I applied via Recruitment Consultant and was interviewed in Dec 2020. There were 4 interview rounds.
I applied via Campus Placement and was interviewed in Apr 2023. There were 3 interview rounds.
Platform - Mettl
3 Questions of medium level difficulty to do in 2 hours, typically contain concepts like DSA, DP etc.
Structure padding is the insertion of unused bytes between structure members to align them on memory boundaries.
Padding is added to ensure that each member of a structure starts at a memory address that is a multiple of its size.
Padding is compiler-dependent and can vary between different platforms and architectures.
Padding can affect the size of a structure and the performance of the program.
Example: struct example { ...
Forming a dictionary from name
Create an empty dictionary
Iterate through each character in the name
Add the character as a key and its frequency as value in the dictionary
Some of the top questions asked at the Mentor Graphics Functional Verification Engineer/ Team Lead Verification interview -
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