Ryzklytix Consulting Solutions Senior Software Engineer Interview Questions and Answers for Experienced

1 hour coding round test on coderpad. 2 questions asked. Questions were of easy and medium level.

Easy-Moderate, Coding problem related to string

Q1. Oops concept, solid principles
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Q1. Angular. oops, c#
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Q1. Programs, oops, azure
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Q1. About company, Package negotiation, notice period
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Q1. Extension methods in C#
Ans. 
Extension methods allow adding functionality to existing types without modifying them.
• Extension methods are defined in a static class.

• They must be marked with the 'this' keyword before the first parameter.

• They can be called on instances of the extended type as if they were instance methods.

• Extension methods can be used to add functionality to third-party or built-in types.

• Example: 'myString.Reverse()' where 'Reverse' i
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Q2. When an int is declare with 0 value and passed as an out parameter to a method what will be the output
Ans. 
The output will depend on the implementation of the method.
• The method may or may not modify the value of the int parameter.

• The method may or may not return a value based on the int parameter.

• Without knowing the implementation of the method, it is impossible to predict the output.
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Q3. How do you inherit a partial class
Ans. 
To inherit a partial class, use the 'partial' keyword in both the base and derived classes.
• Use the 'partial' keyword in both the base and derived classes

• Ensure that the partial classes have the same name and are in the same namespace

• Add the necessary code to the derived class to inherit the properties and methods from the base class
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Q4. What is "using" keyword
Ans. 
The 'using' keyword is used in C# to declare a code block that uses an object and automatically disposes of it when done.
• The 'using' keyword is followed by a set of parentheses that contain the object to be used.

• The object must implement the IDisposable interface.

• The 'using' block ensures that the object is disposed of when the block is exited, even if an exception is thrown.

• Example: using (FileStream fileStream = new ...read more
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Q5. Tools in visual studio for memory management, rectify unused variable and unnecessary code
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Q6. Why do we need WebAPIs
Ans. 
WebAPIs allow communication between different systems and enable access to data and functionality over the internet.
• WebAPIs provide a standardized way for different systems to communicate with each other over the internet.

• They allow access to data and functionality from remote servers, enabling the creation of web and mobile applications.

• WebAPIs can be used to integrate different systems, such as payment gateways, soci...read more
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Q7. Can DML statements be written in functions
Ans. 
Yes, DML statements can be written in functions.
• Functions can contain DML statements like INSERT, UPDATE, DELETE.

• Functions can also return values based on the DML statements executed.

• However, functions cannot be used to execute DDL statements like CREATE or ALTER.
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Q8. What are triggers in sql
Ans. 
Triggers in SQL are special types of stored procedures that are automatically executed in response to certain events.
• Triggers can be used to enforce business rules or data integrity

• They can be executed before or after an INSERT, UPDATE, or DELETE statement

• Triggers can also be used to audit changes to data

• Examples of triggers include sending an email notification when a new record is inserted or updating a related table
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Q9. How to you fetch a record from table
Ans. 
To fetch a record from a table, use SELECT statement with appropriate conditions.
• Use SELECT statement with appropriate columns and table name

• Add conditions using WHERE clause to filter the record

• Use LIMIT clause to limit the number of records returned

• Example: SELECT * FROM users WHERE id = 1 LIMIT 1
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Q10. Inbuilt methods that follow overriding
Ans. 
Inbuilt methods that follow overriding
• In Java, methods that can be overridden are marked with the 'override' keyword

• The overridden method must have the same name, return type, and parameters as the original method

• The 'super' keyword can be used to call the overridden method from the subclass

• Overriding can be used to provide a different implementation of a method in a subclass
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Q1. What is the difference between List and Tuple?
Ans. 
List is mutable and Tuple is immutable in Python.
• List can be modified after creation while Tuple cannot be modified.

• List uses square brackets [] while Tuple uses parentheses ().

• List is used for homogenous data while Tuple is used for heterogenous data.

• List is slower than Tuple in terms of performance.

• Example of List: [1, 2, 3] and Example of Tuple: (1, 'hello', 3.14)
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Q2. What is __init__ ? Follow up question why is __ (double underscore) used?
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Q3. A SQL query based on group by and order by DESC LIMIT 1 in order to fetch highest row of a group in a dataset given by panelist.
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Q4. A simple query on SQL using group by and aggregate function.
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Q5. Panelist asked about my previous work experience and projects I worked upon earlier and the technologies used.
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Q6. Question on how do we create table using SQL Alchemy in Flask (since I had used Python Flask in one of my previous projects and had highlighted it pretty well on my resume).
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Q7. How is memory managed in Python?
Ans. 
Python uses automatic memory management through garbage collection.
• Python uses reference counting to keep track of memory usage.

• When an object's reference count drops to zero, it is deleted.

• Python also uses a garbage collector to handle circular references.

• Memory allocation is handled by the Python memory manager.

• Python provides tools like the 'gc' module for managing memory usage.
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Q1. Question on List operation.
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Q2. Do you know numpy pandas?
Ans. 
Yes, numpy and pandas are Python libraries used for data analysis and manipulation.
• NumPy is used for numerical operations on arrays and matrices.

• Pandas is used for data manipulation and analysis, providing data structures like DataFrame.

• Both libraries are commonly used in data science and machine learning.

• Example: import numpy as np; import pandas as pd;
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Q3. A question to count number of times a letter occurs in a sentence and then also find the maximum occurring letter.
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Q4. Difference between generator and iterator?
Ans. 
Generator generates values on the fly while iterator iterates over a collection of values.
• Generator is a function that returns an iterator.

• Generators use 'yield' keyword to return values one at a time.

• Iterators are objects that implement the 'next' method to return the next value in a collection.

• Iterators can be created from arrays, strings, maps, sets, etc.

• Generators are useful for generating large sequences of values...read more
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Q5. What is the selling point about you why should we consider you over other candidate?
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Q1. Why are you looking for a change?
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Q2. What are your salary expectations?
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Round duration - 60 minutes
Round difficulty - Medium

Q1. Reverse String
You are given a string ‘S’. You are also given ‘M’ integers in an array ‘A’. You perform ‘M’ operations on this string. The operations are given in an array ‘A’ of size ‘M’.
You perform th...read more
Ans. 
1. I used char data type
2. used for loop
3. inside for loop i extracted each character and added each character in front of the existing string
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Round duration - 30 minutes
Round difficulty - Easy

Q1. Selenium based Question
How to come out of I frame in Selenium?
Ans. 
used switchTo(). parentFrame() and coded in selenium syntaxes in java
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Round duration - 30 minutes
Round difficulty - Easy

Q1. Basic HR question
Why do you want to leave the current company?
Ans. 
Tip 1 : For self growth and more learning and challenges
 
Answered by CodingNinjas
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Q1. Core Java/Java 8 - Collection, Stream API, Method Reference, Framework- Spring basics, Struts2, Hibernate Database - Oracle
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