AIRBUS Interview Questions, Process, and Tips

Q1. What is Ensemble learning
Ans. 
Ensemble learning is a machine learning technique where multiple models are combined to improve the overall performance.
• Ensemble learning helps to reduce overfitting and increase accuracy by combining the predictions of multiple models.

• Examples of ensemble learning methods include Random Forest, Gradient Boosting, and AdaBoost.

• Each model in an ensemble may use different algorithms or subsets of the training data to mak
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Q2. Difference between boosting and bagging
Ans. 
Boosting and bagging are both ensemble learning techniques used to improve the performance of machine learning models.
• Boosting focuses on improving the performance of a single model by training multiple models sequentially, where each model corrects the errors of its predecessor.

• Bagging, on the other hand, involves training multiple models independently and then combining their predictions through averaging or voting.

• B...read more
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Basic leetcode problems

Q1. Basic java questions
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Q1. Find the second highest salary in sql
Ans. 
Use SQL query with ORDER BY and LIMIT to find the second highest salary.
• Use SELECT statement to retrieve salary column from the table.

• Use ORDER BY clause to sort the salaries in descending order.

• Use LIMIT 1,1 to get the second highest salary.
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Q2. Check duplicate rows using sql, group by, window function.
Ans. 
Use SQL query with GROUP BY and window function to check for duplicate rows.
• Use GROUP BY to group rows with same values together

• Use COUNT() function to count the number of occurrences of each group

• Use window function like ROW_NUMBER() to assign a unique number to each row within a group
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Q1. Tell me about your self
Ans. 
I am a motivated and detail-oriented individual with a passion for learning and problem-solving.
• I have a strong work ethic and enjoy taking on new challenges.

• I have experience in [relevant field or industry].

• I am proficient in [specific skills or software].

• I am a team player and enjoy collaborating with others.

• I am eager to continue growing and developing both personally and professionally.
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Q1. Tell me about your self
Ans. 
I am a motivated and detail-oriented individual with a passion for learning and problem-solving.
• I have a strong work ethic and am always eager to take on new challenges.

• I have experience in various internships where I have honed my skills in research, analysis, and communication.

• I am a quick learner and adapt well to new environments and tasks.

• I am currently pursuing a degree in [Your Field of Study] at [Your Universit
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Q2. What do you know about surface treatment
Ans. 
Surface treatment is a process used to modify the surface of a material to improve its properties or appearance.
• Surface treatment can involve cleaning, etching, coating, or plating the surface of a material.

• Common methods of surface treatment include anodizing, electroplating, and powder coating.

• Surface treatment can improve properties such as corrosion resistance, wear resistance, and adhesion.

• Examples of surface trea...read more
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Q1. What are types of non linearites
Ans. 
Nonlinearities are deviations from linear behavior in mechanical systems.
• Nonlinearities can arise from factors such as material properties, geometry, and external forces.

• Examples of nonlinearities include friction, hysteresis, and non-ideal springs.

• Friction can cause deviations from linear motion, leading to energy losses and wear.

• Hysteresis occurs when a system's response depends on its past history, such as in magnet...read more
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Q2. What happen to material when we remove the load? Does yield strength remains constant
Ans. 
When the load is removed, the material returns to its original shape and size. Yield strength remains constant.
• When the load is removed, the material undergoes elastic deformation and returns to its original shape and size.

• Yield strength is the maximum stress a material can withstand without permanent deformation.

• Yield strength remains constant regardless of the load being applied or removed.
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