Rapid Global Business Solutions Junior Engineer Interview Questions and Answers

It depends on the region, for me they conducted tool test in the 1st round.

Q1. Technical questions on previously done projects
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Q2. About software and tool proficiency
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Q1. Tell me about yourself
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I am a dedicated and detail-oriented Junior Engineer with a passion for problem-solving and continuous learning.
• Graduated with a degree in Engineering from XYZ University

• Completed internships at ABC Company, gaining hands-on experience in project management

• Proficient in CAD software and technical drawing
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Q2. Diagram of water treatment
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Water treatment involves a series of processes to remove impurities and make water safe for consumption.
• Water treatment typically involves processes such as coagulation, sedimentation, filtration, and disinfection.

• Coagulation involves adding chemicals to water to make particles clump together for easier removal.

• Sedimentation allows the larger particles to settle at the bottom of a tank.

• Filtration involves passing water...read more
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Q1. Personal details
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Q2. Why you want to join
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I want to join because I am passionate about engineering and eager to learn and grow in a dynamic environment.
• Passionate about engineering

• Eager to learn and grow

• Excited about working in a dynamic environment
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Q1. HVAC, FLS & Experience
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Q1. Software Proficiency Test
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There were 2 DSA questions that we had to solve on HackerRank. One of them was a medium dynamic programming question - minimum insertions required to make a string palindrome. The other was a fairly easy question that required knowledge of permutations and combinations. We just had to figure out a maths formula given the situation.
1st round also involved a logical game that we had to play. We were scored based on coding + game and shortlisted for next round.

An interviewer joined me on zoom meet and sent a HackerRank link to a question. It was a medium dynamic programming/backtracking question. I solved it but only half the test cases ran while others threw TLE as my recursive code took exponential time.

Q1. Explain what happens after you search a url on your browser. (Had to explain the whole DNS working)
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Searching a URL triggers a series of steps involving DNS resolution, server communication, and content rendering in the browser.
• 1. User enters a URL in the browser's address bar.

• 2. The browser checks its cache for the IP address associated with the URL.

• 3. If not found, the browser queries a DNS resolver to resolve the domain name.

• 4. The DNS resolver checks its cache; if not found, it queries root DNS servers.

• 5. The roo...read more
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Q2. Explain how video calling works. (Had to explain the whole OSI model)
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Video calling transmits audio and video data over the internet using the OSI model for communication.
• Application Layer: Video calling apps like Zoom or Skype provide user interfaces for communication.

• Presentation Layer: Data is encoded and compressed (e.g., H.264 for video, AAC for audio) for efficient transmission.

• Session Layer: Establishes, maintains, and terminates connections (e.g., signaling protocols like SIP).

• Tr...read more
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Q3. Asked possible causes of ClassNotFoundException and MemoryOutOfBoundException
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Q4. Asked 2 or 3 case study questions like designing a car infotainment system.
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Q5. Asked about the usefulness of OOPS.
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OOP enhances code reusability, maintainability, and organization through encapsulation, inheritance, and polymorphism.
• Encapsulation: Bundles data and methods, e.g., a 'Car' class with properties like 'speed' and methods like 'accelerate()'.

• Inheritance: Allows new classes to inherit properties from existing ones, e.g., 'ElectricCar' inherits from 'Car'.

• Polymorphism: Enables methods to do different things based on the ob...read more
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Q6. Asked how Java code compiles/runs(had to explain about creation of class file, JVM etc)
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Java code compiles into bytecode, which the JVM executes, enabling platform-independent execution.
• Java source code (.java) is written by the developer.

• The Java compiler (javac) converts .java files into bytecode (.class files).

• Bytecode is platform-independent and can run on any system with a JVM.

• The Java Virtual Machine (JVM) interprets or compiles bytecode into machine code for execution.

• JVM manages memory and provide...read more
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Q7. Asked about working of https.
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HTTPS secures communication over the internet using encryption and authentication protocols.
• HTTPS stands for HyperText Transfer Protocol Secure.

• It uses SSL/TLS protocols to encrypt data between the client and server.

• Encryption ensures that data transmitted (like passwords) is secure from eavesdroppers.

• Authentication verifies the identity of the website, preventing man-in-the-middle attacks.

• Example: When you see 'https:...read more
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Q1. Explain few challenges that you faced during a project/internship.
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During my internship, I faced challenges related to communication, time management, and technical skills.
• Communication challenges: Difficulty in effectively conveying ideas and understanding instructions.

• Time management challenges: Struggling to prioritize tasks and meet deadlines.

• Technical skills challenges: Learning new technologies and troubleshooting issues.

• Example for communication challenge: Working in a team whe...read more
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Q2. Where do you see yourself in 5 years?
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In 5 years, I see myself as a Senior Engineer, leading a team and working on complex projects.
• I envision myself taking on more responsibilities and leading a team of engineers.

• I hope to have gained expertise in my field and be recognized as a subject matter expert.

• I aim to work on challenging projects that require problem-solving and innovation.

• I plan to continue learning and staying updated with the latest technologie...read more
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Q3. Explain a project that you did
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Developed a mobile app for tracking daily water intake
• Used React Native framework for cross-platform development

• Implemented a user-friendly interface with intuitive design

• Integrated a database to store and retrieve user data

• Implemented push notifications to remind users to drink water

• Conducted testing and debugging to ensure app functionality
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Q4. Tell me about a conflict that you may have faced during a project/internship
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During my internship, I faced a conflict regarding the allocation of resources for a project.
• Conflict arose when team members disagreed on the distribution of resources.

• I suggested a fair and balanced approach to allocate resources based on individual strengths and project requirements.

• We held a team meeting to discuss and resolve the conflict.

• Through open communication and compromise, we reached a consensus on resourc...read more
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Hacker Rank test with medium difficulty

Q1. Technical discussion mainly around system design, different architectures, problem solving and coding question may be asked.
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A case study for a problem statement

Dsa questions like search sort

Apptitude round mainly english

Q1. SQL databse,oops
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