10+ Interview Questions and Answers

Molarity is the number of moles of solute in one litre of solution, while molality is the number of moles of solute in one kilogram of solvent.

• Molarity is expressed in moles per litre (mol/L), while molality is expressed in moles per kilogram (mol/kg).

• Molarity is temperature dependent due to volume changes, while molality is temperature independent.

• Molarity is commonly used in laboratory settings, while molality is used in calculations involving colligative properties.

• Example...read more

Qualitative analysis focuses on properties and characteristics, while quantitative analysis measures quantities and amounts.

• Qualitative analysis determines the presence or absence of a substance, while quantitative analysis determines the amount of a substance.

• Qualitative analysis is descriptive, while quantitative analysis is numerical.

• Qualitative analysis is used to identify unknown substances, while quantitative analysis is used to determine the concentration of known subs...read more

Java is a popular programming language used for developing various applications.

• Java is an object-oriented language

• It is platform-independent

• It is used for developing web, mobile, and desktop applications

• Java programs are compiled into bytecode and run on Java Virtual Machine (JVM)

Object-oriented programming concepts with examples

• Encapsulation: Wrapping data and methods into a single unit. Example: Class Car with properties like make, model, and methods like start(), stop().

• Inheritance: Reusing code from existing classes. Example: Class SUV inheriting from Class Car.

• Polymorphism: Ability to take multiple forms. Example: Method overloading in Java.

• Abstraction: Hiding complex implementation details. Example: Interface in Java.

• Encapsulation: Binding data ...read more

UV spectroscopy is used to analyze the electronic transitions in molecules by measuring the absorption of ultraviolet or visible light.

• UV spectroscopy is commonly used in pharmaceutical industry for drug analysis and quality control.

• It is also used in environmental testing to detect pollutants in water and air.

• UV spectroscopy can be used to determine the concentration of a compound in a sample.

• It helps in identifying functional groups in organic compounds based on their absor...read more

Error responses should be handled gracefully to provide a good user experience.

• Identify the type of error (e.g. network error, server error, validation error)

• Display user-friendly error messages to explain the issue

• Provide options for users to retry, go back, or contact support

• Log errors for debugging and monitoring purposes

The bug life cycle refers to the stages a bug goes through from discovery to resolution.

• Bug is reported

• Bug is assigned to a tester

• Tester reproduces the bug

• Bug is logged in a bug tracking system

• Bug is prioritized and assigned to a developer

• Developer fixes the bug

• Tester verifies the fix

• Bug is closed

DevOps is a software development methodology that combines software development and IT operations to improve collaboration and efficiency.

• DevOps aims to automate and streamline the software development process.

• It involves continuous integration, continuous delivery, and continuous deployment.

• DevOps teams work together to ensure that software is developed, tested, and deployed quickly and reliably.

• Tools commonly used in DevOps include Git, Jenkins, Docker, and Kubernetes.

• DevOp...read more

Firebase notifications can be set up by integrating Firebase Cloud Messaging (FCM) into your Android app.

• Integrate Firebase SDK into your Android project

• Set up a Firebase project in the Firebase console

• Obtain the FCM server key and sender ID

• Implement the necessary code in your app to receive and handle notifications

Black box testing is a software testing technique where the internal structure, design, and implementation of the system are not known to the tester.

• Black box testing focuses on the functionality of the system.

• Test cases are designed based on the system's requirements and specifications.

• The tester does not have access to the source code or the internal workings of the system.

• It verifies if the system behaves as expected from the end-user's perspective.

• Examples include input v...read more

SDLC stands for Software Development Life Cycle. It is a process used to develop software applications.

• SDLC is a systematic approach to software development that includes planning, designing, coding, testing, and maintenance.

• It provides a framework for developers to follow and ensures that the software is developed efficiently and meets the requirements.

• The different phases of SDLC include requirements gathering, system design, coding, testing, deployment, and maintenance.

• Eac...read more

One drawback of Java API Stream is that it can be less efficient for small collections.

• Stream operations can be slower for small collections compared to traditional loops.

• Stream operations can be harder to debug and understand for some developers.

• Stream operations can lead to increased memory usage due to intermediate objects created during processing.