Cognizant Software Engineer Interview Questions, Process, and Tips

Q1. Basic. Net questions
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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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