Nielsen Java Developer Interview Questions and Answers

60 min covered all reasoning topics

Coding test according to language

Q1. Asked about projects. Quite aloberately.
Add your answer
Q2. What is authorization and authentication?
Ans. 
Authentication verifies the identity of a user, while authorization determines what actions they are allowed to perform.
• Authentication confirms the identity of a user through credentials like passwords or biometrics.

• Authorization determines the level of access a user has to resources or actions.

• Example: Logging into a system with a username and password is authentication, while being able to view or edit specific files
Answered by AI
Add your answer

Mid level programming and mcq questions

Q1. Architecture round and coding Peer programming C# questions React questions Recurssive programming String manipulation
Add your answer
Q2. String manuplation Array questions
Add your answer

Qunatative, Reasoning, Blood Relation

Q1. CS fundamentals, DSA
Add your answer

Q1. Behavioural Questions only
Add your answer

Aptitude Test + Technical Questions + One Coding Question

Q1. Detect the loop in a Singly linked list
Ans. 
Detect loop in a singly linked list
• Use two pointers, one moving one step at a time and the other moving two steps at a time

• If there is a loop, the two pointers will eventually meet

• If any of the pointers reach the end of the list, there is no loop
Answered by AI
Add your answer
Q2. 2 Sum (find a pair of numbers that sums up to a target)
Ans. 
The 2 Sum problem involves finding a pair of numbers in an array that adds up to a given target.
• Use a hash table to store the complement of each number as you iterate through the array.

• Check if the current number's complement exists in the hash table.

• If found, return the indices of the two numbers.

• If no pair is found, return an empty array.
Answered by AI
Add your answer

Oops ,array ,exception,

University Management system