Hydac Applications Engineer Interview Questions and Answers

Q1. General Questiones
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Q1. Basics and Intermediate level
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Q1. Behaviour and Logicals
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Online coding test and aptitude

Q1. Dsa and memory management basics
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Q1. Puzzles and Dsa
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General Aptitude - Time Series, Probability & statistics

Q1. General Interview questions on Operator Overriding , Method Overloading
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Q1. Questions were mainly focused on cloud and testing field
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Q1. Write code on Merge sort
Ans. 
Merge sort is a divide and conquer algorithm that divides the input array into two halves, recursively sorts them, and then merges the sorted halves.
• Divide the array into two halves

• Recursively sort each half

• Merge the sorted halves back together
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Q1. Explain on PCA , SVM and image processing concepts
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PCA is a dimensionality reduction technique, SVM is a machine learning algorithm, and image processing involves manipulating images.
• PCA (Principal Component Analysis) is used to reduce the dimensionality of data by finding the most important features.

• SVM (Support Vector Machine) is a supervised machine learning algorithm used for classification and regression tasks.

• Image processing involves techniques like filtering, s...read more
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Q1. Tell me about your project challenges
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Coding related to Arrays and String

Q1. Explain your project?
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30 question of c code snippet 5 question of aptitude and 2 coding question

Q1. Storage class in c
Ans. 
Storage classes in C define the scope and lifetime of variables.
• There are 4 storage classes in C: auto, register, static, and extern.

• Auto variables are stored in memory and have local scope.

• Register variables are stored in CPU registers for faster access.

• Static variables retain their value between function calls.

• Extern variables are declared outside of any function and can be accessed by other files.
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Q2. Mutex and semaphore
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