Calyx Pharma Senior Software Engineer Interview Questions and Answers

Q1. What is JAVA in software
Ans. 
JAVA is a high-level programming language used for developing applications and software.
• Object-oriented programming language

• Platform-independent

• Used for web development, mobile apps, enterprise software

• Has a large standard library

• Supports multithreading and networking
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Q2. What is oracle in software
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Oracle in software refers to Oracle Corporation, a multinational computer technology corporation known for its database management systems.
• Oracle is a leading provider of relational database management systems (RDBMS).

• It offers a wide range of products and services for data management, cloud applications, and more.

• Oracle databases are widely used in enterprise applications for storing and managing data efficiently.

• Exam...read more
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Q1. Code for Hello World
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Simple code to print 'Hello World'
• Use a print statement to display 'Hello World'

• In Python: print('Hello World')

• In Java: System.out.println('Hello World')
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Q2. Code for printing algo
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Code for printing algorithm in software development.
• Use loops to iterate through the data to be printed.

• Consider formatting options such as spacing and alignment.

• Handle edge cases like empty input or invalid data.

• Example: for (int i = 0; i < array.length; i++) { System.out.println(array[i]); }
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Q1. Different arrays in string types
Ans. 
Arrays of string types are collections of strings stored in a single variable.
• Arrays can be declared and initialized with string values like ['apple', 'banana', 'cherry'].

• Access individual strings in the array using index like array[0] for 'apple'.

• Perform operations like sorting or filtering on arrays of strings.
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Q2. Different strings in array texts
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Comparing different strings in an array of texts.
• Iterate through the array and compare each string with the others.

• Use a nested loop to compare each pair of strings.

• Consider using a hash map to store the frequency of each unique string for efficient comparison.
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Q1. Different dS in software engineer
Ans. 
Different design patterns in software engineering
• Creational patterns (e.g. Singleton, Factory)

• Structural patterns (e.g. Adapter, Decorator)

• Behavioral patterns (e.g. Observer, Strategy)
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Q2. Diff types in string test types
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Different types of string test types include equality, containment, length, case sensitivity, and pattern matching.
• Equality test: comparing two strings to see if they are exactly the same

• Containment test: checking if a string contains a specific substring

• Length test: determining the length of a string

• Case sensitivity test: checking if two strings are equal while considering case

• Pattern matching test: using regular expr
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Q1. Discussion with hiring manager
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Q2. What is your career goal ?
Ans. 
To become a technical leader in software engineering, contributing to innovative projects and mentoring junior engineers.
• To continuously enhance my technical skills and stay updated with the latest technologies.

• To lead and deliver complex software projects successfully.

• To mentor and guide junior engineers, fostering their growth and development.

• To contribute to the development of innovative and impactful software solut...read more
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Q1. Behaviour questions on cloud hosting
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Q2. How will you implement secure cloud deployments
Ans. 
Secure cloud deployments can be implemented through various measures such as encryption, access control, and regular security audits.
• Implement encryption for data at rest and in transit

• Use access control mechanisms to restrict unauthorized access

• Regularly conduct security audits to identify and address vulnerabilities

• Implement multi-factor authentication for added security

• Ensure compliance with industry standards and r...read more
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Q1. How will you troubleshoot 500 internal server error
Ans. 
Check server logs, review code, test endpoints, and verify database connections.
• Check server logs for error messages

• Review code for syntax errors or logical mistakes

• Test endpoints using tools like Postman or cURL

• Verify database connections and credentials

• Check for any recent changes or updates

• Consider scaling issues or server overload

• Consult with team members or experts if necessary
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Q1. What is your next career goals ?
Ans. 
My next career goal is to become a technical lead and mentor junior engineers.
• I want to take on more leadership responsibilities and guide a team towards success.

• I plan to enhance my skills in project management and communication.

• I aim to contribute to the growth and development of the organization.

• I aspire to continuously learn and stay updated with the latest technologies and industry trends.
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Q1. Asked questions in Oops concept
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Q2. Asked available questions in java
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Q1. 1. Solid principles 2. Design patterns 3. Background services .net core 4. .net core basics 5. Reverse a sentence along with a word
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Q1. How to upload a file using selenium webdriver?
Ans. 
You can upload a file using Selenium WebDriver by sending the file path to the file input element.
• Locate the file input element on the webpage using WebDriver

• Use the sendKeys() method to send the file path to the file input element

• Ensure the file path is accessible from the machine running the test
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Q2. How to enable disabled textbox?
Ans. 
To enable a disabled textbox, set the 'disabled' attribute to false.
• Find the textbox element using its ID or class

• Set the 'disabled' attribute to false using JavaScript
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Selenium automation testing

Q1. All the asp.net and MVC questions need.
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Basic java MCQ questions was asked

Q1. Can we overide static method?
Ans. 
Yes, static methods can be overridden in Java using the concept of method hiding.
• Static methods can be hidden in subclasses by declaring a static method with the same signature as the one in the superclass.

• The method in the subclass is said to hide the method in the superclass, but it is not truly overridden as in the case of instance methods.

• Example: public class Parent { public static void display() { S...read more
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Q2. Hash map internal implementation
Ans. 
Hash map is a data structure that stores key-value pairs and uses a hash function to map keys to their corresponding values in an array.
• Hash map uses an array to store key-value pairs.

• A hash function is used to determine the index of the array where a key-value pair will be stored.

• Collision resolution techniques like chaining or open addressing are used to handle cases where multiple keys map to the same index.

• Hash map...read more
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Q1. 1. Is string a value type of reference type? 2. Big O - for loop, binary search, hash table lookup 3. Can you use object as a key in a dictionary? - answer is yes, using GetHashCode 4. Get 7th highest sal...read more
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Q2. Design a employee-Manager class. Write method to display employee organizational hierarchy like we see in Microsoft Teams Org tab
Ans. 
Design an employee-Manager class and write a method to display employee organizational hierarchy.
• Create an Employee class with attributes like name, id, managerId, etc.

• Create a Manager class that inherits from Employee class and has a list of employees under them.

• Write a method to display the hierarchy using recursion.

• Use a data structure like a dictionary to store the employees and their managers.

• Consider edge cases l
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Q3. Get 7th highest salary without CTE
Ans. 
Get 7th highest salary without CTE
• Use subquery to get distinct salaries

• Order the salaries in descending order

• Use LIMIT and OFFSET to get the 7th highest salary
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Q4. Delegates, significance of it in C#
Ans. 
Delegates are a type-safe function pointers in C# used to encapsulate methods and pass them as arguments.
• Delegates allow for event-driven programming

• Delegates can be used to implement callbacks

• Delegates can be chained together to create a multicast delegate

• Delegates can be used to implement the observer pattern

• Delegates can be used to implement the command pattern
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