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Cognizant
Proud winner of ABECA 2024 - AmbitionBox Employee Choice Awards
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Aptitude, logic, and reasoning.
Multithreading, Java 2
What people are saying about Cognizant
I applied via LinkedIn and was interviewed in Apr 2024. There was 1 interview round.
Hashtable is synchronized and does not allow null keys, while hashmap is not synchronized and allows one null key.
Hashtable is synchronized, while hashmap is not.
Hashtable does not allow null keys, while hashmap allows one null key.
Hashtable is thread-safe, while hashmap is not.
Hashtable is slower than hashmap.
Hashtable is part of the legacy collection classes, while hashmap is part of the Java Collections Framework.
Cognizant interview questions for designations
I applied via LinkedIn and was interviewed in Feb 2024. There was 1 interview round.
Get interview-ready with Top Cognizant Interview Questions
Basic to medium aptitude questions
Easy process very easy
Artificial intelligence
An array is a data structure that stores a collection of elements of the same type in a contiguous memory location.
Arrays are used to store multiple values in a single variable.
Elements in an array are accessed by their index, starting from 0.
Example: string[] names = {"Alice", "Bob", "Charlie"};
Arrays can be used to efficiently store and retrieve data in programming.
Arrays can be multidimensional, allowing for more co
A linked list is a data structure that consists of a sequence of elements where each element points to the next element in the sequence.
Each element in a linked list is called a node.
Nodes in a linked list are connected by pointers or references.
Linked lists can be singly linked (each node points to the next node) or doubly linked (each node points to the next and previous nodes).
Polymorphism is the ability of a function or method to behave differently based on the object it is acting upon.
Polymorphism allows objects of different classes to be treated as objects of a common superclass.
There are two types of polymorphism: compile-time (method overloading) and runtime (method overriding).
Example: Inheritance allows a child class to override a method from its parent class, exhibiting polymorphic b
I applied via Walk-in and was interviewed in Mar 2024. There were 2 interview rounds.
Java and SoftSkills,
Oops Concepts and Html,Css
The duration of Cognizant Software Developer interview process can vary, but typically it takes about less than 2 weeks to complete.
based on 112 interviews
5 Interview rounds
based on 489 reviews
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