Tracelink Technical Consultant Interview Questions and Answers for Experienced

Coding questions were easy, not clear about shortlisting process

Q1. Basic DSA questions on arrays, linked lists
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Q1. Self introduction
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Reasoning, Technical questions are asked. 1 hours test is conducted.

Q1. Questions on a database, programming, OOPS concept, etc Also, they will ask questions about ERP
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Q2. Do you know any ERP software?
Ans. 
Yes, I know ERP software.
• I have experience working with SAP ERP software.

• I am familiar with Oracle ERP Cloud and Microsoft Dynamics 365.

• I have also worked with open-source ERP software like Odoo and ERPNext.

• I understand the basic functionalities of ERP software like finance, inventory management, and human resources.
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Q1. Your intro and sometime they will ask what you know about QAD
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Q1. Nvl and nvl2 difference Some practical queries on SQL Performance tunning Trigger
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Q2. Abstract class vs interface Internal working of hashmap Java 8 fearures
Ans. 
Questions on abstract class vs interface, internal working of hashmap, and Java 8 features.
• Abstract class is a class that cannot be instantiated and can have both abstract and non-abstract methods.

• Interface is a collection of abstract methods and constants that can be implemented by a class.

• HashMap is a data structure that stores key-value pairs and uses hashing to retrieve values.

• Java 8 introduced features like lambda...read more
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Q1. Technical discussion was per resume.
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Q1. General questions on past experiences and future aspirations.
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Q1. Features of es6 and your favorite one out of all of them
Ans. 
ES6 introduced many new features like arrow functions, let and const, classes, and more. My favorite feature is template literals.
• Template literals allow for easier string interpolation and multiline strings.

• They use backticks (`) instead of quotes and allow for embedded expressions.

• Example: `Hello ${name}, today is ${date}`

• This feature improves code readability and reduces the need for concatenation.
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Q2. Difference between sql and nosql databases and when to prefer one over the other
Ans. 
SQL is a relational database while NoSQL is non-relational. SQL is good for structured data while NoSQL is good for unstructured data.
• SQL databases use tables with predefined schema while NoSQL databases use documents, key-value pairs, or graphs

• SQL databases are good for complex queries and transactions while NoSQL databases are good for scalability and flexibility

• SQL databases are ACID compliant while NoSQL databases ...read more
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Q3. Favorite programming language and all of the languages you have worked on so far
Ans. 
My favorite programming language is Python. I have also worked with Java, C++, and JavaScript.
• Python is my favorite language due to its simplicity and versatility

• I have used Java for developing enterprise applications

• C++ was my go-to language for performance-critical applications

• JavaScript was used for developing web applications and front-end development
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Simple 30-question 30-minute general aptitude test (entry-level)

Q1. General discussion about projects created. Tech stack selection and other project related questions
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It was a live coding round where expectation was to come up with a framework in Java from Scratch

Q1. It was a DS/Algo Round
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Q1. Design Round in HLD
Ans. 
Design Round in HLD involves creating a high-level design for a software system.
• Identify the main components of the system and their interactions

• Define the architecture of the system including layers, modules, and interfaces

• Consider scalability, performance, security, and maintainability

• Use UML diagrams like class diagrams, sequence diagrams, and component diagrams

• Document the design decisions and rationale
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