Zifo RnD Solutions Senior Validation Analyst 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
Ans. 
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
Ans. 
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
Ans. 
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
Ans. 
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
Ans. 
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. 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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Q1. All the asp.net and MVC questions need.
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Basic and advanced concepts of JavaScript / NodeJS covered.

Q1. Why are you looking for job change
Ans. 
Looking for new challenges and growth opportunities in a dynamic work environment.
• Seeking opportunities for career advancement

• Interested in working on new technologies and projects

• Desire for a more collaborative team environment

• Looking for a company with a strong focus on innovation and development
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Q2. What are your salary expectations
Ans. 
My salary expectations are in line with industry standards for a Senior Software Engineer with my level of experience.
• Research industry standards for Senior Software Engineer salaries in the local area

• Consider my years of experience, skills, and qualifications when determining salary expectations

• Be prepared to negotiate based on the overall compensation package offered
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Solution for a given problem by writing codes

Feasible check and fitment assessment