20+ Dhwani Rural Information Systems Interview Questions and Answers

C++ is a high-level programming language used for developing system software, application software, device drivers, and video games.

• C++ is an extension of the C programming language.

• It supports object-oriented programming concepts like classes, inheritance, and polymorphism.

• C++ is used in developing operating systems, browsers, databases, and more.

• Examples of popular software written in C++ include Adobe Photoshop, Microsoft Office, and MySQL.

• C++ is known for its performance ...read more

Full mean deed refers to a complete and intentional action or act.

• Full mean deed implies carrying out a task or action with complete intention and purpose.

• It involves performing an act deliberately and consciously.

• Examples of full mean deeds can include acts of kindness, charity, or any intentional action with a clear purpose.

Call by value and call by reference are two ways of passing arguments to a function in programming.

• Call by value passes a copy of the value to the function.

• Call by reference passes the memory address of the value to the function.

• Changes made to the parameter inside the function affect the original value in call by reference.

• In call by value, changes made to the parameter inside the function do not affect the original value.

Foreclosure closer refers to the final stage of the foreclosure process where the property is sold to recover the outstanding debt.

• Foreclosure closer is the last step in the foreclosure process.

• It involves the sale of the property to recover the outstanding debt.

• The property is typically sold through an auction or a real estate agent.

• The proceeds from the sale are used to pay off the remaining mortgage balance and any other liens on the property.

• Once the property is sold, the...read more

Virtual function is a function in base class that is overridden in derived class.

• Virtual functions allow polymorphism in C++.

• They are declared in base class with 'virtual' keyword.

• They are overridden in derived class with 'override' keyword.

• They are called based on the object type at runtime.

SQL query features include SELECT, FROM, WHERE, GROUP BY, ORDER BY, JOIN, and more.

• SELECT: used to select specific columns from a table

• FROM: used to specify the table to retrieve data from

• WHERE: used to filter data based on a condition

• GROUP BY: used to group data based on a column

• ORDER BY: used to sort data based on a column

• JOIN: used to combine data from multiple tables

• Other features include subqueries, aggregate functions, and more

A deed of trust is a legal document that transfers the title of a property to a trustee as security for a loan or debt.

• It is commonly used in real estate transactions.

• The trustee holds the title until the loan is paid off.

• If the borrower defaults on the loan, the trustee can sell the property to recover the debt.

• It is similar to a mortgage, but involves three parties: the borrower, the lender, and the trustee.

The area surrounding length refers to the space or region around a particular length or distance.

• It can be used in geometry to refer to the space around a line segment or curve.

• In construction, it can refer to the space around a building or structure.

• In transportation, it can refer to the space around a vehicle or roadway.

• The area surrounding length can also be important in fields such as ecology, where it can refer to the habitat or environment around a particular species.

• Un...read more

Abstract class is a class that can have both abstract and non-abstract methods, while interface only has abstract methods.

• Abstract class can have constructors, while interface cannot

• A class can implement multiple interfaces, but can only inherit from one abstract class

• Abstract class can have instance variables, while interface cannot

• Abstract class is used when there is a need for a common base class for multiple related classes, while interface is used when there is a need fo...read more

Creating a drop-down in Angular

• Use the element in HTMLUse *ngFor directive to loop through optionsBind the selected value to a variable using [(ngModel)]Use *ngIf directive to conditionally show/hide the drop-down

The process involves analyzing data, identifying trends, and making recommendations for improvement.

• Collecting and organizing data from various sources

• Using statistical tools to analyze the data

• Identifying patterns and trends in the data

• Creating reports and presentations to communicate findings

• Making recommendations for process improvement based on the analysis

Education project aims to improve access to education and enhance learning outcomes.

• The project may involve building schools or classrooms in underserved areas.

• It may also involve providing scholarships or financial assistance to students in need.

• The project may focus on improving the quality of education through teacher training or curriculum development.

• Technology may be used to enhance learning outcomes, such as providing access to online resources or educational apps.

• Eval...read more

OOPs is a programming paradigm that focuses on objects and their interactions. SOLID is a set of principles for designing maintainable software.

• OOPs stands for Object-Oriented Programming, which is a programming paradigm that organizes code around objects and their interactions.

• SOLID is an acronym for five principles: Single Responsibility, Open-Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion.

• The Single Responsibility Principle states that a class...read more

Stored procedures are precompiled SQL statements stored in a database, while joins are used to combine rows from different tables.

• Stored procedures are used to improve performance, security, and code reusability.

• Joins are used to retrieve data from multiple tables based on a related column between them.

• There are different types of joins: inner join, left join, right join, and full outer join.

• Example of a stored procedure: CREATE PROCEDURE GetEmployees AS SELECT * FROM Employe...read more

Authentication is the process of verifying the identity of a user, while authorization determines what actions a user is allowed to perform.

• Authentication confirms the identity of a user through credentials like username and password.

• Authorization determines the level of access a user has based on their authenticated identity.

• Authentication is the gatekeeper, while authorization defines the permissions.

• Examples of authentication include login forms, biometric scans, or two-fa...read more

Design a database schema for a given condition

• Identify the entities and their relationships

• Define the attributes for each entity

• Create tables for each entity with appropriate primary and foreign keys

Taxes are mandatory payments made by individuals and businesses to the government. There are various types of taxes.

• Types of taxes include income tax, sales tax, property tax, excise tax, and payroll tax.

• Income tax is a tax on the income earned by individuals and businesses.

• Sales tax is a tax on goods and services purchased by consumers.

• Property tax is a tax on the value of real estate owned by individuals and businesses.

• Excise tax is a tax on specific goods such as alcohol, ...read more

HTML and CSS tags like <div>, <h1>, <p>, <ul>, <li>, <span>, <a>, <img>, <table>, <tr>, <td>, <strong>, <em>, <br>, <hr>, and CSS properties like font-family, font-size, color, text-align, margin, padding, border, and background can be used to create an effective resume.

• <div> for sections like header, education, experience, skills, etc.

• <h1> for headings, <p> for paragraphs, <ul> and <li> for lists

• <span> for styling specific text, <a> for links, <img> for images

• <table>, <tr>, ...read more

Tax map is a map showing the boundaries of properties and their assessed values for tax purposes.

• Tax maps are used by local governments to determine property taxes.

• They show the location and size of each property, as well as any structures on the property.

• Assessed values are based on factors such as location, size, and condition of the property.

• Tax maps are often available to the public and can be used for research or planning purposes.

• They are updated periodically to reflect...read more

Temporary table is a table that exists temporarily and is used to store data temporarily. A view is a virtual table that is based on the result-set of an SQL statement.

• Temporary table is created for a specific session or task and is dropped automatically when the session is closed or the task is completed.

• Temporary table can be used to store intermediate results during complex queries or to store data that needs to be manipulated before being inserted into a permanent table.

• V...read more

Waterways refer to the system of navigable routes for transportation of goods and people via water bodies.

• Waterways can include rivers, canals, lakes, and oceans.

• They are used for transportation of goods such as coal, oil, and grains, as well as for passenger travel.

• Waterways are important for trade and commerce, and can also be used for recreational activities such as boating and fishing.