20+ Digital Interview Questions and Answers

The program calculates the difference between the sum of odd and even position digits in a given number.

• Iterate through each digit of the number

• Keep track of the sum of digits at odd positions and even positions separately

• Calculate the difference between the two sums

Digital marketing involves promoting products or services through online channels. SEO is the process of optimizing websites to rank higher in search engine results. SMM focuses on using social media platforms to increase brand awareness.

• Digital marketing is the promotion of products or services using digital technologies, such as the internet and social media.

• SEO (Search Engine Optimization) is the practice of optimizing websites to improve their visibility in search engine ...read more

Digital marketing is the promotion of products or services using digital technologies.

• Identify target audience and create a digital marketing strategy

• Use various digital channels such as social media, email, search engines, and websites to reach the audience

• Measure and analyze the effectiveness of the campaign using tools like Google Analytics

• Optimize the campaign based on the analysis to improve results

Digital marketing strategy is planned by analyzing target audience, setting goals, selecting channels, creating content, and measuring results.

• Identify target audience and their behavior

• Set specific and measurable goals

• Select appropriate digital channels (social media, email, SEO, PPC, etc.)

• Create engaging and relevant content

• Measure and analyze results to optimize strategy

Generate a hash function using MySQL

• Use the MySQL built-in function SHA2() to generate a hash value

• Specify the input string and the desired hash length as parameters

• Example: SELECT SHA2('hello', 256) AS hash_value;

Use SQL UPDATE statement with CONCAT and UPPER functions to update first letter to upper case.

• Use UPDATE statement to modify the data in the table

• Use CONCAT function to combine the UPPER function with the rest of the string

• Use UPPER function to convert the first letter to upper case

A/B testing involves comparing two versions of a webpage or app to see which one performs better.

• A/B testing is a method used in marketing and product development to determine which version of a webpage or app leads to better results.

• It involves creating two versions (A and B) with one differing element, such as a different headline or call-to-action button.

• Users are randomly shown either version A or B, and their interactions are measured to determine which version is more e...read more

A palindrome number is the same when read forwards and backwards.

• Convert the number to a string to easily check for palindrome

• Reverse the string and compare it with the original string

• If they are the same, the number is a palindrome

Cloud computing is the delivery of computing services over the internet, including storage, servers, databases, networking, software, and more.

• Cloud computing allows users to access and use resources on-demand without the need for physical infrastructure.

• Examples of cloud computing services include Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform.

• Cloud computing offers scalability, flexibility, cost-effectiveness, and increased efficiency for businesses a...read more

I chose TCS for its global presence, diverse opportunities, and strong reputation in the IT industry.

• Global presence with offices in multiple countries

• Diverse opportunities for career growth and development

• Strong reputation in the IT industry for quality services

• Positive reviews from current and former employees

Use hashing algorithms like bcrypt to securely encrypt passwords in code.

• Use a secure hashing algorithm like bcrypt to encrypt passwords in code.

• Never store passwords in plain text.

• Salt the passwords before hashing for added security.

• Implement proper password storage and validation techniques.

• Example: bcrypt.hashSync('password', 10)

SEP Optimization stands for Search Engine Placement Optimization, which involves improving a website's visibility in search engine results pages.

• Involves optimizing website content, meta tags, and keywords to improve search engine rankings

• Includes creating high-quality backlinks and improving website loading speed

• Utilizes strategies like on-page SEO, off-page SEO, and technical SEO

• Example: Using relevant keywords in website content to attract more organic traffic

Mutable and immutable refer to the ability to change or not change an object's state.

• Mutable objects can be modified after creation, while immutable objects cannot be changed.

• Examples of mutable objects include lists and dictionaries in Python.

• Examples of immutable objects include strings and tuples in Python.

Find the largest sum of a subarray within an array of strings.

• Iterate through the array and keep track of the sum of each subarray.

• Update the maximum sum as you go through the array.

• Return the largest sum found.

Beans in Spring Boot provide a way to manage and configure application components.

• Beans are managed by the Spring IoC container

• They are created and initialized by the container

• Beans can be defined using annotations or XML configuration

• They can be scoped as singleton, prototype, request, session, etc.

• Beans can be autowired to inject dependencies

• Example: @Component annotation creates a bean

• Example: @Autowired annotation injects a bean

Spring Boot is a framework that simplifies the development of Java applications by providing a pre-configured environment.

• Spring Boot is built on top of the Spring framework and follows the convention over configuration principle.

• It allows developers to create stand-alone, production-grade Spring-based applications with minimal configuration.

• Spring Boot provides a wide range of features like auto-configuration, embedded servers, and dependency management.

• It promotes the use o...read more

Function overloading allows multiple functions with the same name but different parameters.

• Function overloading is a feature in many programming languages that allows multiple functions with the same name but different parameters.

• Example: int add(int a, int b) and float add(float a, float b) are two overloaded functions with the same name 'add' but different parameter types.

• Example: void print(int num) and void print(string text) are two overloaded functions with the same nam...read more

Bubble sort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements, and swaps them if they are in the wrong order.

• Start by comparing the first two elements of the array and swap them if necessary.

• Continue comparing adjacent elements and swapping them until the array is sorted.

• Repeat this process for each element in the array until no more swaps are needed.