Cognizant Software Engineer Interview Questions, Process, and Tips

These test are conduct by HackerRank. It is programming level knowledge test.

Q1. Basic Core java and Spring Boot Questions in that Rounds, Also Knowledge check for programming. There is a program that we have to run successfully and scenario type Questions are asked by interviewer.
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Q2. What is Multithreading?
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Multithreading is the ability of a CPU to execute multiple threads concurrently, allowing for better performance and responsiveness in software applications.
• Multithreading allows multiple threads to run concurrently within the same process.

• Each thread has its own stack and program counter, but shares the same memory space.

• Multithreading can improve performance by utilizing multiple CPU cores efficiently.

• Examples of mul...read more
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Q3. OOPS concepts with real time examples
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OOPS concepts are fundamental to software engineering, with examples like inheritance, encapsulation, and polymorphism.
• Inheritance: A child class inherits properties and behaviors from a parent class. For example, a Car class can inherit from a Vehicle class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit. For example, a BankAccount class with private variables and public methods.

• Po...read more
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Q4. Describe the newly added features in Java 8?
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Java 8 introduced features like lambda expressions, functional interfaces, streams, and default methods.
• Lambda expressions allow you to write code in a more concise way.

• Functional interfaces can have only one abstract method and are used with lambda expressions.

• Streams provide a way to work with sequences of elements.

• Default methods allow interfaces to have method implementations.

• Example: Lambda expression - (int a, in...read more
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Q5. What is the Default Methods and why it is required?
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Default Methods are methods in interfaces with implementation, introduced in Java 8.
• Introduced in Java 8 to provide backward compatibility for interfaces

• Allows adding new methods to interfaces without breaking existing implementations

• Default methods can be overridden in implementing classes

• Example: default void display() { System.out.println("Default method"); }
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Q6. What is autowired annotation?
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Autowired annotation is used in Spring framework to automatically inject dependencies into a bean.
• Autowired annotation is used to automatically wire up dependencies in Spring framework.

• It eliminates the need for manual wiring of dependencies in the code.

• Autowired annotation can be used on fields, constructors, or methods.

• Example: @Autowired private UserService userService;
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Q1. Tell me your self introduction?
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Q2. Why Do you want to work our company?
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Q3. What are your strength and weakness?
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Q4. What is your expected salary you wants?
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Basics of College level aptitude

Simple Array and String based programming

Q1. About Cognizant, Location preferences etc
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Easy and learn the basics

Know the basics and also the data algorithm

Q1. Technical and hr
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General questions was asked

2 programming questions