Cognizant Assistant System Engineer Interview Questions and Answers

Remove vowel from string

Return subset from two array

Work from home vs work from office

Q1. C++ define in cute way
Ans. 
C++ is a powerful programming language known for its efficiency and flexibility.
• C++ is a statically typed language

• It supports object-oriented programming

• It allows for low-level memory manipulation

• Example: defining a class in C++ - class Car { public: int speed; };
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Q2. Opps concept for a cvar
Ans. 
CVAR stands for Conditional Value at Risk, a risk measure used in finance to evaluate the tail risk of an investment portfolio.
• CVAR is an extension of Value at Risk (VaR) that focuses on the expected loss beyond the VaR threshold.

• It provides a more comprehensive view of potential losses in extreme scenarios.

• CVAR takes into account the probability distribution of losses beyond the VaR level.

• It is often used by investors...read more
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Q1. How to do mechanisim
Ans. 
Mechanism refers to the process or system by which something operates or is achieved.
• Understand the components involved in the system or process

• Identify the interactions between the components

• Determine the cause-effect relationships

• Analyze the functions and operations of the system

• Implement changes or improvements if necessary
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Q2. What is your expectation
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I expect to work in a challenging environment where I can learn and grow professionally.
• I expect to be given opportunities to learn new technologies and skills.

• I expect to work in a supportive team environment where collaboration is encouraged.

• I expect to have clear goals and expectations set by my superiors.

• I expect to receive constructive feedback to help me improve.

• I expect to be able to contribute my ideas and expe...read more
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1. Aptitude
A) Verbal
B) Reasoning
C) Quants

2. Coding test
A) Arrays - Number of ways to reach a position after exactly K steps
B) Rotate Matrix

Q1. OOPS concepts inheritance, abstraction, polymorphism
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Q2. Fibonacci series code + Dry run
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Q3. Basic of OS
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Q4. Friend function C++
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Q5. Difference between Tuple and list in python
Ans. 
Tuple is immutable, ordered collection of elements while list is mutable, ordered collection of elements in Python.
• Tuple is created using parentheses () while list is created using square brackets []

• Tuple elements cannot be changed once assigned while list elements can be modified

• Tuple is faster than list for iteration and accessing elements

• Example: tuple_example = (1, 2, 3) and list_example = [1, 2, 3]
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Q6. Tell above Agile methodology & waterfall model
Ans. 
Agile methodology is iterative and flexible, while waterfall model is sequential and rigid.
• Agile focuses on delivering working software in short iterations

• Waterfall follows a linear sequential flow from requirements to testing

• Agile allows for changes and feedback throughout the development process

• Waterfall requires all requirements to be defined upfront

• Agile is more adaptive to changes in project scope

• Waterfall is less
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Q7. Difference between Agile and waterfall model
Ans. 
Agile is iterative and flexible, while waterfall is sequential and rigid.
• Agile involves continuous feedback and adaptation, while waterfall follows a linear approach.

• Agile is best suited for projects with changing requirements, while waterfall is better for projects with well-defined requirements.

• Agile promotes collaboration and communication among team members, while waterfall focuses on documentation and formal proce...read more
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Q8. Is their any drawbacks of Agile model
Ans. 
Yes, there are drawbacks of Agile model.
• Lack of predictability in terms of project timelines and deliverables

• Difficulty in handling large and complex projects

• Dependency on customer collaboration and feedback can sometimes slow down the process

• Requires experienced team members for effective implementation

• May lead to scope creep if not managed properly
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Q1. Why you want to work at TCS?
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I want to work at TCS because of its reputation for innovation, global presence, and opportunities for growth.
• TCS is known for its cutting-edge technology solutions and innovation in the IT industry.

• TCS has a strong global presence with offices in multiple countries, providing opportunities for international exposure.

• TCS offers a wide range of projects and clients, allowing for professional growth and development.

• TCS h...read more
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Q2. What are your hobbies?
Ans. 
My hobbies include playing the guitar, hiking, and reading science fiction novels.
• Playing the guitar

• Hiking

• Reading science fiction novels
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Q3. How is your team project experience in college?
Ans. 
I have extensive team project experience in college, working on various assignments and presentations.
• Led a team of 5 students to develop a mobile application for a class project

• Collaborated with classmates to create a research paper on artificial intelligence

• Participated in a group presentation on cybersecurity for a final exam
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Q4. Are you a continuous learner or not?
Ans. 
Yes, I am a continuous learner who is always seeking to expand my knowledge and skills.
• I regularly attend workshops, seminars, and online courses to stay updated with the latest technologies and trends.

• I actively seek feedback from colleagues and supervisors to identify areas for improvement.

• I enjoy reading technical blogs and articles to enhance my understanding of complex concepts.

• I have pursued certifications in rel...read more
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Q5. Situation based questions about team management.
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Q6. What are your achievements till date?
Ans. 
I have successfully completed multiple projects on time and received recognition for my problem-solving skills.
• Received Employee of the Month award for implementing a new system that improved efficiency by 20%

• Led a team in developing a software solution that reduced errors by 15%

• Achieved a 98% customer satisfaction rate in handling technical support issues
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Q1. SQL question about joins
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Q2. Question related to project
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Q1. What is a challenging situation faced
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Q1. Introduction, project, my past internships
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Q2. Detailed questions about the internship and tech stacks I've used.
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Q1. Basic questions about certification and hobbies
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Q2. Asked for relocation and shifts
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