10+ Riversand Technologies Interview Questions and Answers

Dennis Ritchie

• Dennis Ritchie is the founder of the C programming language

• He developed C at Bell Labs in the early 1970s

• C is a widely used programming language for system software and applications

Write a program to find the largest number in an array of integers.

• Create an array of integers

• Initialize a variable to store the largest number

• Loop through the array and compare each number to the current largest number

• If the current number is larger, update the largest number variable

• Return the largest number

Web hosting is a service that allows individuals and organizations to make their websites accessible on the internet.

• Web hosting involves storing website files on a server that is connected to the internet.

• It provides the necessary infrastructure and technologies for websites to be viewed online.

• Web hosting companies offer different types of hosting plans, such as shared hosting, VPS hosting, and dedicated hosting.

• Examples of popular web hosting providers include Bluehost, Ho...read more

Arthur Samuel is considered the founder of machine learning.

• Arthur Samuel coined the term 'machine learning' in 1959.

• He developed the first self-learning program, the Samuel Checkers-playing Program.

• His work laid the foundation for modern machine learning algorithms.

Virtual hosting is a method of hosting multiple domain names on a single server.

• Virtual hosting allows for cost-effective sharing of server resources

• Each domain has its own directory and can be managed separately

• Examples include shared hosting and cloud hosting

• Virtual hosting can be either shared or dedicated

Write a SQL query to find the total number of orders placed by each customer.

• Use the GROUP BY clause to group the orders by customer.

• Use the COUNT function to count the number of orders for each customer.

• Join the orders table with the customers table to get the customer names.

Use SELECT statement with WHERE clause and LIKE operator to find entries based on last name.

• Use SELECT statement to retrieve data from the table.

• Use WHERE clause to filter the data based on last name.

• Use LIKE operator with % wildcard to match any characters before or after the last name.

• Example: SELECT * FROM table_name WHERE last_name LIKE 'Smith%'

Use c printf with format specifiers to output time in a specific format.

• Use %02d for hours, %02d for minutes, and %02d for seconds.

• Example: printf("Current time: %02d:%02d:%02d", hours, minutes, seconds);

The PHP syntax for the header function is used to send a raw HTTP header.

• Use the header() function followed by the header string to send a raw HTTP header.

• Headers must be sent before any actual output is sent, either by using the header() function or output buffering.

• Example: header('Location: https://www.example.com');

A domain is a unique address that identifies a website on the internet.

• A domain is composed of a name and a domain extension, such as .com, .org, or .net.

• Domains are used to access websites and send emails.

• They provide a human-readable way to locate and identify websites on the internet.

• For example, in the domain www.example.com, 'example' is the name and '.com' is the domain extension.

Domain is the area of expertise or knowledge that a person or organization specializes in.

• Domain refers to a specific subject or field of study.

• It can also refer to the range of values that a function can take.

• For example, in software development, a domain expert is someone who has specialized knowledge in a particular industry or topic.

• In mathematics, the domain of a function is the set of input values for which the function is defined.