Citrix Staff Software Developer Interview Questions and Answers

Q1. Reverse the linked list.
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Q1. Internel working of Hashmap
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Q1. Salary Discussion
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Q1. Explain OOPS concept and how you apply it in your implementation
Ans. 
OOPS is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
• OOPS focuses on the concept of classes and objects

• Encapsulation: bundling data and methods that operate on the data within a single unit

• Inheritance: allows a class to inherit properties and behavior from another class

• Polymorphism: ability to present the same interface for diffe...read more
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Q2. Difference between Comparable and Comparator. Difference between Abstract Class and Interface
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Comparable is an interface used for natural ordering, Comparator is an interface used for custom ordering. Abstract class can have method implementations, Interface cannot.
• Comparable interface is used to define the natural ordering of objects. Example: String class implements Comparable interface for natural ordering based on alphabetical order.

• Comparator interface is used to define custom ordering of objects. Example:...read more
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Q3. Given a string. Find the number of occurrences of each character
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Count occurrences of each character in a given string
• Create an array to store the count of each character

• Iterate through the string and increment the count of each character in the array

• Return the array with counts for each character
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Q4. Given an array. Remove the number of duplicates
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Remove duplicates from an array of strings
• Iterate through the array and store each element in a set to keep track of unique values

• Create a new array with the unique values from the set
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Q5. Given a student object having name and grade data variables. Sort the object on the basis of highest grade.
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It included aptitude, technical and coding questions

Q1. Questions on SQL(Joins)
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Q2. Questions on arrays, substrings
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Q1. Location preferred
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Remote work preferred, open to occasional travel
• Remote work preferred

• Open to occasional travel

• Flexible with location
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Q2. Family background
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Q1. Basic java fundamentals
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Q2. Spring boot,sql
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Q1. Some technical questions from manager
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Q2. Some challenges or scenario based questions
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Q1. Salary discussion mostly
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Q2. Benifts that they offer with TR
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Q1. Asked linq question and answered correctly with little modification, still was not impressed
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Q2. Expections were little high.
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Q1. What is the importance of manual testing when compared to automation testing
Ans. 
Manual testing is important for exploratory testing, usability testing, and ad-hoc testing.
• Manual testing allows for exploratory testing where testers can explore the application and identify unexpected issues.

• Usability testing, which involves real users interacting with the software, is best done manually to capture user experience.

• Ad-hoc testing, where testers randomly test the application without predefined test cas...read more
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Q2. Real life scenario on web application testing
Ans. 
Testing a web application for an online shopping platform
• Testing the functionality of adding items to the cart and checking out

• Testing the payment gateway integration for secure transactions

• Testing the search functionality to ensure accurate results are displayed

• Testing the responsiveness of the website on different devices and browsers
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Q1. What is the inheritance?
Ans. 
Inheritance is a mechanism in object-oriented programming where a class inherits properties and behaviors from another class.
• Allows a class to inherit attributes and methods from another class

• Promotes code reusability and reduces redundancy

• Creates a parent-child relationship between classes

• Derived class can override or extend the functionality of the base class
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Q2. What are the types of joins in mysql
Ans. 
Types of joins in MySQL include inner join, left join, right join, and full join.
• Inner join: Returns rows when there is a match in both tables.

• Left join: Returns all rows from the left table and the matched rows from the right table.

• Right join: Returns all rows from the right table and the matched rows from the left table.

• Full join: Returns rows when there is a match in one of the tables.
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Q1. How to handle multiple api's
Ans. 
Use a centralized API gateway to manage and route requests to multiple APIs efficiently.
• Implement a centralized API gateway to handle incoming requests and route them to the appropriate API based on the endpoint.

• Utilize API management tools like Apigee, Kong, or AWS API Gateway to manage and monitor multiple APIs.

• Consider implementing a caching layer to improve performance and reduce the number of requests to external
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Q2. What does strstr function do?
Ans. 
strstr function searches for a substring within a string and returns a pointer to the first occurrence of the substring.
• Used in C programming language

• Syntax: char *strstr(const char *haystack, const char *needle)

• Example: char *str = strstr("hello world", "world")
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The aptitude test was conducted online modh

There were 3 codes given and had to choose 1 and write it down in pen paper mode

Q1. Oops questions like encpuslation, abstraction
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Q2. Os questions like paging, segmentation
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Q1. Same basich hr questions introduce ur self
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Q2. Why Visteon, and what do u know about Visteon
Ans. 
Visteon is a leading global automotive supplier known for innovative technology solutions in the automotive industry.
• Visteon is a well-established company with a strong reputation in the automotive industry.

• They are known for their cutting-edge technology solutions for vehicle cockpit electronics.

• Visteon has a global presence and works with major automotive manufacturers around the world.

• The company focuses on developi...read more
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