Knack Systems Software Engineer Interview Questions, Process, and Tips

Java program to calculate factorial number

• Use a recursive function to calculate the factorial of a number

• Handle edge cases like 0 and negative numbers

• Use long data type to handle large factorials

OOPs concepts in Java are the principles of Object-Oriented Programming used to design and develop software applications.

• Encapsulation: Bundling data and methods that operate on the data into a single unit (class)

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

• Polymorphism: Ability to present the same interface for different data types

• Abstraction: Hiding the implementation details and s

Bac element is a type of transposable element found in bacteria that can move from one location to another within the genome.

• Bac elements are often used in genetic engineering to introduce new genes into bacterial genomes.

• They can also be used as tools for studying gene expression and regulation.

• Examples of Bac elements include Tn5 and Tn10.

Left outer join is a type of join operation in SQL that returns all rows from the left table and the matched rows from the right table.

• Left outer join is used to retrieve all records from the left table and only the matching records from the right table.

• If there is no match found in the right table, NULL values are returned for the columns of the right table.

• Example: SELECT * FROM table1 LEFT OUTER JOIN table2 ON table

Business processes are a series of tasks or activities that are performed in a specific order to achieve a desired outcome.

• Business processes involve a series of steps or activities that are designed to achieve a specific goal.

• They can be automated or manual, depending on the complexity of the process.

• Examples include order processing, inventory management, and customer service.

• Business processes can be documented usin...read more

Territory management is the process of dividing sales territories and assigning resources to maximize sales potential.

• Involves dividing geographical areas into manageable territories

• Assigning sales representatives to specific territories

• Optimizing resource allocation to maximize sales potential

• Monitoring and adjusting territories based on performance

• Commonly used in sales and marketing strategies