PreludeSys Internship Trainee Interview Questions and Answers

Coding cum aptitude test on Hackerrank

Q1. First round interview . Consisted questions based on projects , dsa
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Q1. Round 2 . Question based from core technology. Micro services , etc
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Q1. Basic hr questions . Why are you fit for this role kind of things
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Written test on Basics of c and c++ is asked.
Also be thorough with mathematical topics like vectors,calculus.

Q1. C++ basic questions Oops concepts
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Q2. Math questions on vectors and calculus Predict the output for a given program
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Q1. Find repeated nos in arrays
Ans. 
Find repeated numbers in arrays of strings
• Iterate through each string in the array

• Convert each string to an array of numbers

• Use a hash map to track the frequency of each number

• Identify and return the repeated numbers
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Q1. Current company work, reason for change, etc.
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Q1. Difference between pull and push
Ans. 
Pull is when the client initiates the request for data, while push is when the server sends data without a request.
• Pull: Client initiates request for data

• Push: Server sends data without request

• Pull: Used in polling mechanisms

• Push: Used in real-time communication systems
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Q2. Difference between pull and fetch
Ans. 
Pull and fetch are both Git commands used to update a local repository with changes from a remote repository, but they have different behaviors.
• Pull: updates the current branch with changes from the remote repository and merges them into the local branch.

• Fetch: downloads changes from the remote repository to the local repository, but does not merge them into the local branch.

• Pull is a combination of fetch and merge, wh...read more
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Q1. Where you see yourself in next five years
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Q1. Related the profile they asked about .Net , c#, linq, sqlserver, UI. related topics answer they will ask.
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Q2. Manager will ask about your project and experience.
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Q3. Answer them about your worked projects and project experience.
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Q1. HR will discuss your salary and expected salary.
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Q1. What is Django request response cycle.?
Ans. 
Django request response cycle is the process of handling a request and generating a response in Django web framework.
• Client sends a request to the server.

• The request is received by the Django server.

• Django uses URL patterns to match the requested URL to a view function.

• The view function processes the request and returns an HTTP response.

• The response is sent back to the client.
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Q2. What is django signals?
Ans. 
Django signals allow certain senders to notify a set of receivers that some action has taken place.
• Signals allow decoupled applications to get notified when certain actions occur elsewhere in the application

• They are used to avoid coupling between applications

• Signals are defined by providing a receiver function which gets called when the signal is sent

• Example: A signal can be sent when a new user is created, and a recei...read more
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Q3. Difference between list and tuple, list and array.
Ans. 
Lists and tuples are similar but tuples are immutable. Arrays are fixed size while lists are dynamic.
• Lists and tuples are both used to store collections of data.

• Tuples are immutable, meaning their values cannot be changed once created.

• Lists are dynamic and can be resized during runtime.

• Arrays are fixed size and can only store elements of the same data type.

• Lists and arrays can be indexed and sliced to access specific e...read more
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Q4. How to define private variables ?
Ans. 
Private variables are defined using access modifiers to restrict their access within a class.
• Use the 'private' keyword to define a private variable

• Private variables can only be accessed within the class they are defined in

• Private variables are often used to encapsulate data and prevent direct access from outside the class
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Q5. Oops concept, and 4 pillars of oops.
Ans. 
Oops concept is a programming paradigm based on the principles of abstraction, encapsulation, inheritance, and polymorphism.
• Abstraction: Hiding the implementation details and showing only the necessary information to the user.

• Encapsulation: Binding the data and methods together to protect the data from outside interference.

• Inheritance: Creating a new class from an existing class to reuse the code and add new features.

• P...read more
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Q6. What is decorator. ?
Ans. 
A decorator is a design pattern that allows behavior to be added to an individual object, either statically or dynamically.
• Decorators wrap an object to modify its behavior.

• They provide a flexible alternative to subclassing for extending functionality.

• Python has built-in support for decorators, which are denoted by the @ symbol.

• Examples of decorators include @staticmethod, @classmethod, and @property.
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1.Reverse a list
2.find pairs from a list sum of which is equal to an integer k.

Q1. Tell me about your self,python coding questions,etc
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Q1. What is system testing
Ans. 
System testing is the process of testing the complete and integrated software system to evaluate its compliance with specified requirements.
• System testing is performed on the entire software system as a whole.

• It is conducted after integration testing and before acceptance testing.

• The main goal of system testing is to ensure that the software meets the specified requirements and functions correctly in the intended envir...read more
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