Principal Global Services Software Analyst Interview Questions and Answers

5 coding questions, 2-medium and 3 easy - medium

Q1. Linked List Concept
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Q2. DSA: prime no. or not optimal approach
Ans. 
Optimal approach for checking if a number is prime or not using DSA
• Optimal approach for checking prime numbers is to iterate up to square root of the number

• Use trial division method to check divisibility by numbers up to square root of the number

• Time complexity of this approach is O(sqrt(n))
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Q3. Class, object with real time examples
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A class is a blueprint for creating objects, which are instances of the class. Objects have attributes and behaviors.
• Classes define the structure and behavior of objects.

• Objects are instances of classes and have their own unique attributes and behaviors.

• Example: Class 'Car' with attributes like 'color' and behaviors like 'drive'. Object 'myCar' is an instance of 'Car' with color 'red' and can drive.

• Example: Class 'Pers...read more
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Q4. SQL types of normal forms
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SQL normal forms are levels of organization for relational databases to reduce redundancy and improve data integrity.
• First normal form (1NF) - Eliminate repeating groups and ensure each column contains atomic values.

• Second normal form (2NF) - Meet 1NF requirements and have all non-key attributes fully functionally dependent on the primary key.

• Third normal form (3NF) - Meet 2NF requirements and have no transitive depend...read more
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Q1. About Projects and contribution in that
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Q2. Managerial Questions
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Q1. How api calls work?
Ans. 
API calls allow software applications to communicate with each other by sending and receiving data.
• API calls are made by sending a request to a specific endpoint using a defined protocol such as HTTP or REST.

• The request includes information like the method (GET, POST, PUT, DELETE), headers, and parameters.

• The server processes the request and sends back a response, which can include data, status codes, and headers.

• API c...read more
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Q2. Number of ways for array sorting
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There are multiple ways to sort an array of strings, such as using built-in functions like sort() or implementing custom sorting algorithms.
• Use built-in sort() function in languages like JavaScript or Python

• Implement custom sorting algorithms like bubble sort, merge sort, or quick sort

• Consider the specific requirements of the sorting task to choose the most efficient method
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Q1. Coding question on binary search
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Q2. String patterns coding question
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