Mountblue Technologies SDE Interview Questions and Answers

Developed a web application for tracking student attendance and performance

• Used React.js for front-end development

• Implemented RESTful APIs using Node.js and Express for back-end

• Utilized MongoDB for database storage

• Integrated authentication and authorization features for secure access

I am a passionate software engineer with experience in developing web applications using various technologies.

• Experienced in developing web applications using HTML, CSS, JavaScript, and frameworks like React and Angular

• Proficient in backend development with Node.js and databases like MongoDB and MySQL

• Familiar with version control systems like Git and deployment tools like Docker

• Strong problem-solving skills and ability

My hobbies include hiking, playing guitar, and reading science fiction novels.

• Hiking in local trails and national parks

• Playing acoustic and electric guitar in a band

• Reading books by authors like Isaac Asimov and Philip K. Dick

Cognizant offers diverse projects, global exposure, and a strong focus on employee growth and development.

• Cognizant provides opportunities to work on diverse projects, allowing for a broad range of experience.

• The company has a global presence, offering exposure to different cultures and markets.

• Cognizant emphasizes employee growth and development through training programs and career advancement opportunities.

Engineering allows me to solve complex problems, innovate, and create solutions that have a real impact on society.

• Engineering provides a platform to apply scientific knowledge to practical problems.

• It involves critical thinking, problem-solving, and creativity.

• Engineers have the opportunity to work on cutting-edge technologies and make a tangible difference in the world.

• For example, designing software systems to impro...read more

Pin diagram of 8085 microprocessor

• 8085 has 40 pins in total

• Pins are grouped into 5 categories: power supply, address bus, data bus, control and status signals

• Pin 1 is the reset pin, Pin 40 is the Vcc pin

• Examples of control signals: RD, WR, ALE, INT, HOLD

• Examples of status signals: S0, S1, IO/M, HLDA

8086 is an advanced version of 8085 with more features and capabilities.

• 8086 has a 16-bit data bus while 8085 has an 8-bit data bus.

• 8086 has more registers than 8085.

• 8086 has a higher clock speed than 8085.

• 8086 supports virtual memory while 8085 does not.

• 8086 has a more advanced instruction set than 8085.

• Example: 8086 can perform multiplication and division operations while 8085 cannot.

Opamp stands for operational amplifier. It is an electronic device used to amplify and process signals.

• Opamps have high gain and can amplify signals to a very high degree.

• They are commonly used in audio amplifiers, filters, and signal processing circuits.

• Opamps have two input terminals and one output terminal.

• They can be configured in different ways to perform various functions such as amplification, filtering, and osc...read more

Waterfall model has five phases: requirements, design, implementation, testing, and maintenance.

• Requirements phase: gathering and documenting requirements

• Design phase: creating a detailed design based on requirements

• Implementation phase: coding and integrating components

• Testing phase: verifying that the system meets requirements

• Maintenance phase: making changes and updates to the system

• Example: building a website using...read more

Types of testing include unit, integration, system, acceptance, regression, performance, and security testing.

• Unit testing: testing individual units or components of the software

• Integration testing: testing how different units or components work together

• System testing: testing the entire system as a whole

• Acceptance testing: testing to ensure the software meets the requirements and is ready for release

• Regression testing...read more

I enjoy participating in coding competitions, volunteering at tech events, and attending hackathons.

• Participating in coding competitions such as Codeforces or Topcoder

• Volunteering at tech events like hackathons or coding workshops

• Attending hackathons to collaborate with other developers and work on innovative projects

My goal in life is to continuously learn and grow, while making a positive impact on the world around me.

• Continuous learning and personal growth

• Making a positive impact on the world

• Achieving work-life balance

• Building meaningful relationships

• Contributing to the community

I am open to relocation for the right opportunity.

• I am willing to relocate for the job.

• I have no issues moving to a new location for work.

• I am excited about the possibility of experiencing a new city or country.

• I have relocated for previous jobs and have found it to be a positive experience.

I want to relocate for career growth and new experiences, but I am hesitant due to leaving behind family and friends.

• Career growth opportunities in new location

• Desire for new experiences and challenges

• Concerns about leaving behind family and friends

I enjoy watching a variety of shows on TV, including dramas, comedies, and documentaries.

• I watch dramas like Grey's Anatomy and This Is Us

• I enjoy comedies such as The Office and Brooklyn Nine-Nine

• I also like watching documentaries on topics like nature and history

I last saw the movie Inception.

• Directed by Christopher Nolan

• Released in 2010

• Genre: Sci-Fi/Thriller

• Starring Leonardo DiCaprio

I am a passionate software engineer with experience in developing web applications and a strong background in computer science.

• Experienced in developing web applications using technologies like HTML, CSS, JavaScript, and React

• Strong background in computer science with knowledge in algorithms and data structures

• Passionate about learning new technologies and solving complex problems

My favorite subject is computer science because I enjoy problem-solving and creating innovative solutions.

• Computer science allows me to work on challenging problems and develop new technologies.

• I enjoy coding and building software applications.

• I find the intersection of technology and creativity fascinating.

• Computer science offers endless opportunities for learning and growth.

The query finds the employee name who earns the maximum salary.

• Use the SELECT statement to retrieve the employee name and salary from the database table.

• Use the ORDER BY clause to sort the results in descending order based on salary.

• Use the LIMIT clause to limit the result to only one row.

• Return the employee name from the query result.

I am a passionate software engineer with experience in developing web applications using various technologies.

• Experienced in front-end development using HTML, CSS, and JavaScript

• Proficient in back-end development with Node.js and Express

• Familiar with database management systems like MySQL and MongoDB

Favorite Game: The Legend of Zelda: Breath of the Wild, Favorite Player: Lionel Messi

• Favorite Game: The Legend of Zelda: Breath of the Wild

• Favorite Player: Lionel Messi

I am comfortable working night shifts and have no problem with it.

• I have experience working night shifts in previous roles.

• I am able to adjust my sleep schedule accordingly to accommodate night shifts.

• I am aware of the potential challenges of working night shifts and have strategies to overcome them.

Yes, I am comfortable working outside Kolkata.

• I am open to new opportunities and experiences in different locations.

• I am adaptable and can easily adjust to new environments.

• I have previous experience working in different cities, such as Delhi and Bangalore.

I am a recent graduate with a degree in Computer Science and a passion for software development.

• Recent graduate with a degree in Computer Science

• Passionate about software development

• Experience with programming languages like Java and Python

Developed a web-based inventory management system for a retail company

• Used React for front-end development

• Implemented RESTful APIs using Node.js and Express for back-end

• Utilized MongoDB for database management

Primary key uniquely identifies a record in a table, while unique key ensures uniqueness of a column.

• Primary key cannot have null values, while unique key can have one null value.

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

• Primary key is automatically indexed, while unique key may or may not be indexed.

• Example: Primary key - employee ID, Unique key - email address

This program calculates the frequency of a given alphabet in a string using a basic C program.

• Declare an array of size 26 to store the frequency of each alphabet

• Iterate through the string character by character

• For each character, check if it is an alphabet

• If yes, increment the corresponding frequency count in the array

• Print the frequency of the desired alphabet

I start my day by waking up early, exercising, having a healthy breakfast, and planning my tasks for the day.

• Wake up early

• Exercise

• Have a healthy breakfast

• Plan tasks for the day

I enjoy hiking, reading, and playing the guitar in my free time.

• Hiking: I love exploring new trails and being in nature.

• Reading: I enjoy diving into different genres and expanding my knowledge.

• Playing the guitar: I find it relaxing and love learning new songs.

No, I am open to relocation for the right opportunity.

• I am open to relocating for the right job opportunity

• I have relocated in the past for career advancement

• I am flexible and adaptable to new environments

I am adaptable and resourceful, so I will manage well in Coimbatore.

• Research about the city's culture, language, and local amenities.

• Connect with local professionals or expats for guidance and support.

• Explore transportation options and create a budget for living expenses.

• Stay open-minded and embrace the new experience with enthusiasm.

I am a software engineer with experience in developing web applications and a passion for learning new technologies.

• Experienced in developing web applications using technologies such as React, Node.js, and MongoDB

• Passionate about learning new technologies and keeping up with industry trends

• Strong problem-solving skills and ability to work well in a team environment

I was involved in various extracurricular activities such as volunteering, sports, and coding clubs.

• Volunteered at local animal shelter

• Played on intramural basketball team

• Participated in coding competitions

• Organized and led coding club at school

I am open to working in any location, but I prefer cities with a vibrant tech community.

• Open to any location

• Prefer cities with a vibrant tech community