Hello Learners,
Those who have appeared for the technical interview, please share the questions here.
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Hi All,
Sharing the interview questions shared by Yusuf who got placed in Celebal Technologies. PFB the questions for both round 1 & 2. Please do prepare on all these questions to get high chance of clearing the interview rounds.
- What is the difference between Lists and Tuple?
- Which performs better and why?
- What does immutable mean?
- What are sets?
- Are they ordered or unordered?
- Can we created nested sets?
- What is meant by unhashable and hashable Data types?
- Difference between Abstraction and Encapsulation?
- What does the โselfโ keyword do?
- I was asked to create a class and a sub class inheriting from the parent class.
- Create a function to add two numbers if they are odd.
- Write a code to extract phone numbers from a list of strings and save it to a text file.
- What is try and except?
- Give a code example of try-except-else-finally all together.
- What is Linear Regression?
- What is the sigmoid function?
- What does Sigmoid mean?
- What is the threshold value for Binary Classification problem in Logistic Regression?
- Can LoR work for Multi-Class Classification problem? If yes then how is the threshold value calculated for it?
- Tell me about the working of KMeans in detail.
- How to find number of clusters in KMeans?
- Write a code to create 5 clusters and pick out the cluster mentioned by the interviewer.
- What is tfidf vectorizer?
- What is bag of words?
- What is are steps for preprocessing required for an NLP problem?
- What should we do if a class label is far more than the other class label(Imbalanced Data)?
- What is SMOTE?
- How does SMOTE work?
- How do you improve performance of a model?
- What should we do to detect outliers and how should we deal with them?
- What is Bagging?
- Benefits of bagging?
- What is Random forest?
- Can we say that a particular model is better than the other?
- Write a SQL query to replace values in a column by using CASE statement.
- Write a SQL query to find employees name starting with โAโ and group them by department.
- Write a SQL query to count distinct firstnames.
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