Schenck Process India Senior Systems Engineer Interview Questions and Answers

C, DS understanding and

C and C++ and domain knowledge

General aptitude test

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. 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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Linked list reverse, core C++ and tricks
Design problem

Q1. C++ basics , OOP, design constructs
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Q2. DSA- array sum of balance
Ans. 
Calculate the sum of balances in an array of strings representing financial transactions.
• Iterate through the array of strings and extract the balance from each transaction.

• Convert the balance strings to numbers and sum them up to get the total balance.

• Handle any potential errors or invalid data in the array.
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Q1. Based on your resume
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Mathematics, logical reasoning

C/C++, device driver, Networking, objectives

Q1. Authentication Authorization in web api
Ans. 
Authentication Authorization in web api involves verifying the identity of users and determining their access rights.
• Authentication verifies the identity of users, typically through credentials like username and password.

• Authorization determines what actions users are allowed to perform based on their identity and roles.

• Common methods include JWT tokens, OAuth, and role-based access control.

• Implementing secure communic...read more
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Q2. Exception handling in web api
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Exception handling in web API involves catching and managing errors that occur during API requests.
• Use try-catch blocks to handle exceptions in web API controllers.

• Return appropriate HTTP status codes for different types of exceptions (e.g. 400 for bad request, 500 for internal server error).

• Log exceptions to track errors and troubleshoot issues.

• Customize error messages to provide helpful information to API consumers.
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Q3. Design patterns
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