Anicca Data Science Solutions Interview Questions and Answers

Q1. What was your role at your previous organisation
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Q2. What technologies did you work on
Ans. 
I have worked on technologies such as Apache Spark, Hadoop, SQL, Python, and AWS.
• Apache Spark

• Hadoop

• SQL

• Python

• AWS
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They just asked about the oops concepts.

Q1. Explain linked lists
Ans. 
Linked lists are data structures consisting of nodes linked together in a sequence.
• Each node contains data and a reference to the next node

• Linked lists can be singly linked (each node points to the next) or doubly linked (each node points to the next and previous)

• Example: Singly linked list: 1 -> 2 -> 3 -> null
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Q2. Normalisation in DBMS
Ans. 
Normalisation in DBMS is the process of organizing data in a database to reduce redundancy and improve data integrity.
• Normalisation involves breaking down a large table into smaller tables and defining relationships between them.

• It helps in reducing data redundancy by storing data in a structured manner.

• There are different normal forms such as 1NF, 2NF, 3NF, BCNF, and 4NF, each with specific rules to follow.

• For example...read more
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Q3. Asked me to write code for dsa code
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Basic oops mcqs were asked in this round

Q1. Linked lists,circular linked lists
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Q2. Normalization in dbms
Ans. 
Normalization in DBMS is the process of organizing data in a database to reduce redundancy and improve data integrity.
• Normalization involves breaking down a database into smaller, more manageable tables.

• It helps in reducing data redundancy by storing data in a structured way.

• Normalization ensures data integrity by minimizing the chances of anomalies like insertion, update, and deletion anomalies.

• There are different nor...read more
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Q1. Oops in code optimization
Ans. 
Oops in code optimization
• Identify the bottleneck in the code

• Use profiling tools to measure performance

• Avoid premature optimization

• Consider trade-offs between time and space complexity

• Use appropriate data structures and algorithms

• Test and benchmark the optimized code
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Q1. Major challenges and contributions
Ans. 
As a Senior Software Engineer, my major challenges include managing complex projects, leading teams, and solving technical problems.
• Managing complex projects and ensuring timely delivery

• Leading and mentoring teams to achieve high-quality results

• Solving technical problems and implementing innovative solutions

• Collaborating with cross-functional teams to align software development with business goals

• Staying updated with e...read more
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