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I was interviewed in Oct 2024.
JWT token is a JSON web token used for authentication and contains three parts: header, payload, and signature.
JWT token consists of three parts: header, payload, and signature.
Header contains the type of token and the signing algorithm used.
Payload contains claims about the user and additional data.
Signature is used to verify that the sender of the JWT is who it says it is.
JWT tokens are encoded and can be easily deco...
Array and collection concept.
String concept.
I applied via Walk-in and was interviewed before Jun 2021. There were 2 interview rounds.
Code programming skills and latest technology knowledge
posted on 10 May 2015
Multi tasking, multi processing, and multi programming are different approaches to managing tasks in an operating system.
Multi tasking allows multiple tasks to run concurrently on a single processor.
Multi processing involves multiple processors running tasks simultaneously.
Multi programming allows multiple programs to be loaded into memory and executed concurrently.
Examples of multi tasking operating systems include Wi...
Memory allocation refers to the process of assigning memory to programs during runtime.
Stack allocation is done automatically and is limited in size.
Heap allocation is done manually and is larger in size.
Stack memory is used for local variables and function calls.
Heap memory is used for dynamic memory allocation.
Memory leaks can occur if heap memory is not properly managed.
Use a shared variable and synchronization mechanisms to ensure natural order printing of numbers.
Create two threads, one for printing even numbers and the other for printing odd numbers.
Use a shared variable to keep track of the current number to be printed.
Implement synchronization mechanisms like locks or semaphores to ensure only one thread can access the shared variable at a time.
Each thread should check if it is i...
Printing a matrix in spiral order
Start from the first element and print it
Move in a spiral order towards the center of the matrix
Repeat until all elements are printed
Thread class and Runnable Interface are used for multithreading in Java.
Thread class is a predefined class in Java that provides methods to create and control threads.
Runnable interface is used to define a task that can be executed by a thread.
Thread class implements Runnable interface.
Thread class provides more control over threads than Runnable interface.
Example: Thread t = new Thread(new MyRunnable()); t.start();
Exa...
Linked List is a dynamic data structure while ArrayList is a static data structure.
Linked List is best for frequent insertion and deletion operations.
ArrayList is best for frequent access operations.
Linked List uses more memory than ArrayList.
ArrayList is faster than Linked List for accessing elements.
Use Linked List when you need to frequently add or remove elements from the list.
Use ArrayList when you need to frequen
I am not interested in a career in investment banking.
I am more interested in a career in software development
I enjoy problem-solving and creating innovative solutions through coding
Investment banking does not align with my passion and skill set
I have chosen to apply to J.P. Morgan because of their reputation, global presence, and opportunities for growth.
J.P. Morgan has a strong reputation in the financial industry.
They have a global presence with offices in multiple countries.
The company offers various opportunities for career growth and development.
J.P. Morgan is known for its innovative technology solutions in the financial sector.
I am impressed by their ...
Yes, I have made a mistake in my previous project.
I underestimated the complexity of a task and ended up missing the deadline.
I failed to properly test a feature, resulting in a bug that affected user experience.
I accidentally deleted an important file without having a backup.
I misunderstood a requirement and implemented a feature incorrectly.
I was interviewed before Mar 2016.
I applied via Campus Placement and was interviewed before Feb 2023. There were 4 interview rounds.
3 rounds of basic aptitude questions
Data structures and computer fundamentals
I applied via LinkedIn and was interviewed in May 2021. There were 6 interview rounds.
I am looking for new challenges and growth opportunities.
Seeking a more challenging role
Looking for opportunities to learn and grow
Want to work with new technologies
Desire to work in a different industry
Seeking better work-life balance
I was interviewed in Nov 2020.
Round duration - 90 minutes
Round difficulty - Easy
You are given a string S
consisting of several words. Your task is to count the number of times each word appears in string S
. A word is defined as a sequence of...
Count the occurrence of each word in a given string.
Split the string into words using spaces as delimiters.
Use a hashmap to store the count of each word.
Iterate through the words and update the count in the hashmap.
Output each unique word with its occurrence count.
Round duration - 30 minutes
Round difficulty - Easy
Your task is to determine if two given strings are anagrams of each other. Two strings are considered anagrams if you can rearrange the letters of one string to form the...
Check if two strings are anagrams of each other by comparing their sorted characters.
Sort the characters of both strings and compare them.
Use a dictionary to count the frequency of characters in each string and compare the dictionaries.
Ensure both strings have the same length before proceeding with comparison.
Handle edge cases like empty strings or strings with different lengths.
Round duration - 45 minutes
Round difficulty - Medium
Find the total number of palindromic substrings in a given string STR
.
"abbc"
5
The palindromic substrings are: ["a", "...
Count the total number of palindromic substrings in a given string.
Iterate through each character in the string and expand around it to find palindromic substrings.
Use dynamic programming to store previously calculated palindromic substrings.
Consider both odd and even length palindromes while counting.
Example: For input 'abbc', palindromic substrings are ['a', 'b', 'b', 'c', 'bb']. Total count is 5.
To find the 4th highest salary from a table in a database, you can use a SQL query with the ORDER BY and LIMIT clauses.
Write a SQL query to select distinct salaries from the table in descending order.
Use the LIMIT clause to retrieve the 4th row from the sorted list.
The query would look like: SELECT DISTINCT salary FROM table_name ORDER BY salary DESC LIMIT 3, 1
Tip 1 : Be confident
Tip 2 : Focus on data structures and algorithms(if you have less than 6 months)
Tip 3 : Focus on competitive programming(if you have more than 6 months)
Tip 4 : Practice at least 200 questions of various topics on leetcode and also start doing contest on various platforms.
Tip 1 : You shouldn't lie on your resume.
Tip 2 : Write only those projects about which you are confident.
I applied via Naukri.com and was interviewed in Apr 2022. There were 2 interview rounds.
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