10+ Nagarro Interview Questions and Answers

There are several types of insurance available.

• Life insurance

• Health insurance

• Auto insurance

• Homeowner's insurance

• Travel insurance

• Pet insurance

• Disability insurance

• Liability insurance

• Business insurance

Primary key uniquely identifies each record in a table, while unique key ensures that all values in a column are different.

• Primary key does not allow NULL values, while unique key allows one NULL value.

• A table can have only one primary key, but multiple unique keys.

• Primary key is automatically indexed, while unique key is not.

• Example: Primary key for a table of students could be student_id, while unique key could be email_id.

MVC application flow involves the request being handled by the controller, which interacts with the model to retrieve data and then passes it to the view for rendering.

• 1. Request is received by the controller

• 2. Controller interacts with the model to retrieve data

• 3. Data is passed to the view for rendering

• 4. View generates the HTML response to be sent back to the client

StateManagement in ASP.NET refers to the techniques used to preserve data between multiple requests from the same user.

• StateManagement is important for maintaining the state of controls on a web page across postbacks.

• There are different ways of managing state in ASP.NET such as ViewState, Session, Cookies, and Application state.

• ViewState is used to store page-specific information that is preserved across postbacks.

• Session state is used to store user-specific information that ...read more

To connect to a database and retrieve data, use a database connection library or API.

• Choose a database management system (DBMS) and install it.

• Install a database driver or library for your programming language.

• Establish a connection to the database using the appropriate connection string or configuration.

• Execute SQL queries to retrieve data from the database.

• Process and manipulate the retrieved data as needed.

Abstraction is the concept of hiding complex implementation details and showing only the necessary information. Interface is a contract that defines the methods that a class must implement.

• Abstraction allows us to focus on what an object does instead of how it does it.

• Interface defines a set of methods that a class must implement, but it does not provide the implementation details.

• Abstraction can be achieved through abstract classes and interfaces in object-oriented programmi...read more

Joins are used to combine rows from two or more tables based on a related column between them.

• Types of joins include: INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL JOIN, CROSS JOIN

• INNER JOIN returns rows when there is at least one 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...read more

Educating the customer involves providing information and guidance to help them understand a product or service.

• Listen actively to the customer's needs and concerns

• Explain complex concepts in simple terms

• Provide clear instructions and step-by-step guidance

• Use visual aids or demonstrations when necessary

• Offer relevant examples or case studies

• Follow up to ensure understanding and address any further questions

IP stands for Internet Protocol, a set of rules governing the format of data sent over the internet.

• IP is a unique address assigned to each device connected to a network.

• It allows devices to communicate with each other by routing data packets.

• There are two versions of IP - IPv4 and IPv6.

• Example: IPv4 address - 192.168.1.1, IPv6 address - 2001:0db8:85a3:0000:0000:8a2e:0370:7334

SQL query joins are used to combine rows from two or more tables based on a related column between them.

• Use JOIN keyword to combine rows from two or more tables based on a related column

• Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column

A domain is a group of computers, printers, and other devices that are interconnected and governed by the same security policies.

• A domain allows for centralized management of users, computers, and resources.

• Domains are typically used in networking environments to control access and permissions.

• Examples of domain systems include Microsoft Active Directory and LDAP.