Ness Digital Engineering Software Engineer Trainee Interview Questions and Answers

A database is a structured collection of data that is organized and stored for easy access, retrieval, and management.

• A database is used to store and manage large amounts of data.

• It provides a way to organize and structure data for efficient storage and retrieval.

• Databases can be relational, object-oriented, or hierarchical, depending on the data model used.

• Examples of databases include MySQL, Oracle, MongoDB, and SQLi

No, we cannot create two columns with the same name in a relational table.

• Relational databases enforce uniqueness of column names within a table.

• Having two columns with the same name would lead to ambiguity and confusion.

• Column names are used to uniquely identify and access data in a table.

• If two columns have the same name, it would be impossible to distinguish between them.

• To avoid this, column names must be unique wi

DBMS is a software system that manages databases, while RDBMS is a type of DBMS that manages relational databases.

• DBMS stands for Database Management System, which is a software system that manages databases.

• RDBMS stands for Relational Database Management System, which is a type of DBMS that manages relational databases.

• DBMS can handle various types of databases, including non-relational databases.

• RDBMS organizes data ...read more

ACID properties are a set of principles that ensure reliability and consistency in database transactions.

• ACID stands for Atomicity, Consistency, Isolation, and Durability.

• Atomicity ensures that a transaction is treated as a single unit of work, either fully completed or fully rolled back.

• Consistency ensures that a transaction brings the database from one valid state to another.

• Isolation ensures that concurrent transact...read more

SLK stands for Software Load and Performance Testing. It is a process of testing software applications to ensure their performance under expected load.

• SLK is used to identify performance bottlenecks and optimize software applications.

• It involves simulating real-world scenarios and measuring the response time and resource usage.

• SLK helps in determining the maximum capacity of a software system and ensuring its stability...read more