JENX DIGITECH Senior Engineer Interview Questions and Answers

Q1. Relates to mechanical industry
Ans. I'm a mechanical engineering in branch of production and designing.
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Q2. Strength of mechanical equipment
Ans. 
The strength of mechanical equipment is determined by its ability to withstand stress and strain without failure.
• Strength can be measured through various tests such as tensile, compression, and fatigue testing.

• Factors such as material properties, design, and manufacturing processes can affect the strength of equipment.

• Regular maintenance and inspections can help identify potential weaknesses and prevent equipment failu...read more
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Q3. Mechanical strength are depends on stress strain
Ans. Then mechanical strength are well so equipment are aslo good
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Q1. Personal detail
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Q2. Education detail
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Q1. Self introduction
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Q2. Technical questions
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Q1. Technical maintenance
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Q2. Yes interview today
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Q1. Senior manager ok to
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Q2. Interview date confoim
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It was medium. It consisted of basic pattern questions

Medium level questions were asked

I can say u have to prepare well if u want to clear the coding test

Q1. Tell me about urself
Ans. 
I am a passionate software engineer with experience in developing web applications and a strong background in computer science.
• Experienced in developing web applications using technologies like HTML, CSS, JavaScript, and React

• Strong background in computer science with knowledge of algorithms and data structures

• Proficient in programming languages such as Java, Python, and C++

• Familiar with Agile development methodologies
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Q2. Strengths and weaknesses
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Basic aptitude test very easy

Topic was pros and cons of social media
total time was 10, 2 minutes for each candidate.

Q1. What is a transaction in DBMS, what are ACID properties? Explain the difference between SQL and NoSQL databases. How would you optimize a slow running query?
Ans. 
A transaction in DBMS is a unit of work that must be executed as a whole. ACID properties ensure data integrity. SQL is relational, NoSQL is non-relational.
• A transaction in DBMS is a set of operations that must be executed as a single unit.

• ACID properties (Atomicity, Consistency, Isolation, Durability) ensure data integrity in transactions.

• SQL databases are relational and use structured query language, while NoSQL data...read more
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Q2. Define encapsulation and provide an example. Discuss the principles of inheritance and polymorphism.
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Encapsulation is the concept of bundling data and methods that operate on the data into a single unit. Inheritance allows a class to inherit attributes and methods from another class. Polymorphism allows objects of different classes to be treated as objects of a common superclass.
• Encapsulation helps in data hiding and abstraction

• Example: A class 'Car' encapsulates data like make, model, and methods like start(), stop()

• ...read more
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Q3. Explain how to detect a cycle in a linked list.
Ans. 
Use Floyd's Tortoise and Hare algorithm to detect a cycle in a linked list.
• Start with two pointers, slow and fast, moving at different speeds.

• If there is a cycle, the two pointers will eventually meet at some point.

• If there is no cycle, the fast pointer will reach the end of the list.

• Example: 1->2->3->4->5->2 (cycle at node 2), slow and fast pointers will meet at node 2.
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Q1. Tell us about yourself
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Q2. Why do you want to join
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Give the string and array related questions