Cognizant Associate Engineer Interview Questions, Process, and Tips

Maths question on probability

Q1. Difference between String and Stringbuffer
Ans. 
String is immutable, StringBuffer is mutable in Java.
• String is immutable, meaning once created, it cannot be changed. StringBuffer is mutable, allowing for modifications.

• String concatenation creates a new String object each time, while StringBuffer allows for efficient string manipulation.

• StringBuffer is synchronized, making it thread-safe, while String is not.

• Example: String str = "Hello"; StringBuffer sb = new String
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Q2. Difference between map and hashmap
Ans. 
HashMap is a specific implementation of the Map interface in Java.
• Map is an interface in Java that represents a mapping between a key and a value.

• HashMap is a class in Java that implements the Map interface.

• HashMap allows null values and one null key, while Map does not allow null keys.
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Q1. Strength and weakness
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Q2. Why you want to join this company
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Q1. Can you tell me about yourself?
Ans. 
I am a recent graduate with a degree in Mechanical Engineering and a passion for problem-solving and innovation.
• Recent graduate with a degree in Mechanical Engineering

• Passionate about problem-solving and innovation

• Experience with CAD software such as SolidWorks

• Completed internships at engineering firms
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Q2. Your strength
Ans. 
My strengths include problem-solving skills, attention to detail, and strong technical knowledge.
• Strong problem-solving skills - I am able to analyze complex issues and come up with effective solutions.

• Attention to detail - I pay close attention to the specifics of a task to ensure accuracy and quality.

• Strong technical knowledge - I have a solid understanding of engineering principles and tools, allowing me to excel in
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Q1. Java Automation
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Great and easy full of learning

Q1. Few question on Camunda Framework.
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Q1. Few HR questions and salary discussion.
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Amcat test ( aptitude, English, technical, coding)

Q1. 1. What is owasp top 10 web? 2. Types of injection attack?. 3. Java based questions?. 4. Projects and internship?.
Ans. 
OWASP Top 10 is a list of the top 10 most critical web application security risks.
• Injection attacks include SQL injection, LDAP injection, and XPath injection.

• Java based questions may include topics like object-oriented programming, exception handling, and multithreading.

• Projects and internships can showcase practical application of skills and knowledge gained in a real-world setting.
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Q1. 1. Willing to relocate?.
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