CohnReznick Software Engineer Interview Questions and Answers

QUESTIONS WERE MODERATE WHERE WE HAVE TO DO 45 IN 50 MINUTES

SQL QUERY AND ONE CODING QUESTION

Basic questions for freshers

More focus on the participation and collective contribution of candidates along with communication skills.

Q1. DSa, DBMS, joins, and other basic c, c++ questions
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Q1. Interests hobbies Co-curricular activities and such related questions
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Q1. What are the technology you have worked on
Ans. 
I have worked on a variety of technologies including Java, Python, SQL, and AWS.
• Java

• Python

• SQL

• AWS
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Q1. Tell me something about SOLID Principle
Ans. 
SOLID principles are a set of five design principles in object-oriented programming to make software designs more understandable, flexible, and maintainable.
• S - Single Responsibility Principle: A class should have only one reason to change.

• O - Open/Closed Principle: Software entities should be open for extension but closed for modification.

• L - Liskov Substitution Principle: Objects of a superclass should be replaceable...read more
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It includes - 2 coding questions + MCQ

Online aptitude test 1.30 hr....................

1 HR CODING test both aptitude coding combines 2.30 hours

Q1. Depends on your branch ..technical questions
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Q1. Easy questions only asked.........................
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Q1. What is Guidewire
Ans. 
Guidewire is a software company that provides core system software for property and casualty insurers.
• Guidewire offers software solutions for policy administration, claims management, and billing.

• Their software helps insurance companies streamline their operations and improve customer service.

• Examples of Guidewire products include PolicyCenter, ClaimCenter, and BillingCenter.
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Q1. What is Abstract class
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An abstract class is a blueprint for other classes, allowing for shared methods and properties while preventing instantiation.
• An abstract class cannot be instantiated directly.

• It can contain abstract methods (without implementation) that must be implemented by derived classes.

• It can also have concrete methods (with implementation) that can be used by derived classes.

• Example: In a shape hierarchy, 'Shape' can be an abst...read more
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Q2. Difference between static method and class method?
Ans. 
Static methods belong to the class, while class methods can modify class state and take the class as the first argument.
• Static methods are defined using the 'static' keyword and do not take 'self' or 'cls' as the first parameter.

• Class methods are defined using the '@classmethod' decorator and take 'cls' as the first parameter, allowing access to class variables.

• Static methods cannot modify class state or instance state...read more
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Q3. MRO in Python ?
Ans. 
MRO (Method Resolution Order) in Python determines the order in which base classes are searched when executing a method.
• MRO is crucial in multiple inheritance scenarios to avoid ambiguity.

• Python uses the C3 linearization algorithm to compute MRO.

• You can view the MRO of a class using the __mro__ attribute or the mro() method.

• Example: For class D inheriting from B and C, and both B and C inheriting from A, MRO is D ->...read more
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Q4. How merge function used in pandas?
Ans. 
The merge function in pandas combines DataFrames based on common columns or indices.
• Used to combine two DataFrames based on a key column.

• Example: pd.merge(df1, df2, on='key') merges df1 and df2 on the 'key' column.

• Supports different types of joins: inner, outer, left, right.

• Example: pd.merge(df1, df2, how='outer') performs an outer join.

• Can merge on multiple columns using a list: pd.merge(df1, df2, on=['key1', 'key2'])
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It was a very easy aptitude test

It is a very easy coding test

Q1. Asked about AI, ML
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Q2. Asked about self intro, project
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