XpressBees Interview Questions, Process, and Tips

Q1. How many years of experience in logistics Total 5 years experience in logistics
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Q2. Which department working Line hole last mail
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I'm sorry, but the question is unclear and does not make sense.
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Q1. What is MVVM and why is it recommended?
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MVVM stands for Model-View-ViewModel, a design pattern that separates the UI from the business logic.
• MVVM separates the UI (View) from the business logic (ViewModel) by introducing a middle layer (ViewModel) that handles the communication between the two.

• Model represents the data and business logic, View represents the UI components, and ViewModel acts as an intermediary between them.

• MVVM promotes better code organizat...read more
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Q2. Difference between lateinit and lazy.
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lateinit is used for non-nullable properties that are initialized in the constructor, while lazy is used for properties that are initialized only when accessed for the first time.
• lateinit is used for properties that must be initialized before being used, while lazy is used for properties that can be initialized later.

• lateinit properties must be of non-nullable types, while lazy properties can be nullable.

• lateinit prope...read more
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Q3. Different Coroutines launchers and differences among them.
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Different Coroutines launchers in Android and their differences.
• MainCoroutineDispatcher - runs on the main thread and is used for UI updates.

• IOCoroutineDispatcher - optimized for IO-bound tasks like network requests or database operations.

• DefaultCoroutineDispatcher - suitable for CPU-bound tasks that don't require the main thread.

• UnconfinedCoroutineDispatcher - runs on the current thread until the first suspension poin...read more
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Q4. Supervisor Scope Vs Coroutine Scope.
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Supervisor Scope is used in structured concurrency for managing child coroutines, while Coroutine Scope is used for launching coroutines.
• Supervisor Scope is used to manage the lifecycle of child coroutines, ensuring that if one child fails, it does not affect the others.

• Coroutine Scope is used for launching coroutines and managing their lifecycle.

• SupervisorScope is a part of the Kotlin coroutines library, while Corouti
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Q5. Firebase rules and use cases.
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Q6. Firebase Push Notifications: How can we send different push notifications to other users?
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Different push notifications can be sent to other users by targeting specific user IDs or using topics in Firebase Cloud Messaging.
• Use Firebase Cloud Messaging to send push notifications to specific user IDs.

• Utilize topics in Firebase Cloud Messaging to send notifications to groups of users with similar interests or characteristics.

• Implement logic in the backend to determine which users should receive which notificatio...read more
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Q7. Background Service and Foreground Service.
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Q8. Can foreground services be launched if application is in background?
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Yes, foreground services can be launched if application is in background.
• Foreground services can be launched even if the application is in the background to perform tasks that are noticeable to the user.

• Foreground services have a higher priority than background services and are less likely to be killed by the system.

• Examples of foreground services include music playback, navigation, or ongoing downloads.
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Q9. How to implement Retrofit and how can we make REST calls using that?
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Retrofit is a type-safe HTTP client for Android and Java. It simplifies making REST API calls.
• Create a Retrofit instance using Retrofit.Builder class

• Define an interface with method definitions for API endpoints

• Use annotations like @GET, @POST, @PUT, @DELETE to specify the type of HTTP request

• Execute the API call using Call object and Callback interface

• Handle the response in onResponse() and onFailure() methods
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Q10. Room database migration strategy. How can we handle migration when one more column is added to the table without hampering previous data in that table?
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Use Room database migration with SQLite ALTER TABLE command to add a new column without losing previous data.
• Create a new migration class in Room database with SQLite ALTER TABLE command to add the new column.

• Ensure that the new column is nullable or has a default value to prevent issues with existing data.

• Update the entity class in the code to include the new column and handle it accordingly in the app.

• Test the migrat...read more
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Q11. What is livedata? Different methods of MutableLiveData and differences between them.
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LiveData is an observable data holder class. MutableLiveData is a subclass of LiveData that allows data to be changed.
• LiveData is an observable data holder class that is lifecycle-aware.

• MutableLiveData is a subclass of LiveData that allows data to be changed.

• Methods of MutableLiveData include setValue() and postValue().

• setValue() updates the value on the main thread, while postValue() updates the value asynchronously.

• L...read more
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Q12. What are the configuration changes?
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Configuration changes refer to modifications made to settings or parameters in software or hardware systems.
• Configuration changes can include adjustments to network settings, display preferences, security settings, etc.

• Examples of configuration changes include changing the screen resolution on a computer, updating the Wi-Fi password on a router, or modifying notification settings on a smartphone.
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Q13. MVVM project folder structure.
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MVVM project folder structure organizes code into separate layers for better maintainability and scalability.
• Separate folders for Models, Views, ViewModels, and Services

• Models folder contains data classes representing the data structure

• Views folder contains XML layout files for UI components

• ViewModels folder contains classes that handle business logic and interact with the data layer

• Services folder contains classes for...read more
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Q14. HTTP interceptors and why do we need it?
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HTTP interceptors are used to intercept and modify HTTP requests and responses in an application.
• HTTP interceptors are commonly used in web development to add authentication tokens, logging, error handling, or other functionalities to HTTP requests and responses.

• They can be used to modify headers, add authorization tokens, log requests, handle errors, or perform any other pre-processing or post-processing tasks.

• Example...read more
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Q15. JVM overloads and JVM static? Is there any difference in JVM static and Companion object?
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JVM static vs Companion object in Kotlin
• JVM static is used in Java to create static methods and variables within a class

• Companion object in Kotlin serves a similar purpose to JVM static, providing a way to define static members within a class

• Companion objects can implement interfaces, extend classes, and have their own methods and properties

• JVM static members are accessed using the class name, while companion object me
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Q16. How do we access companion object from Java code?
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Companion objects in Kotlin can be accessed from Java code using the @JvmStatic annotation.
• Use the @JvmStatic annotation on companion object functions or properties to access them from Java code.

• In Java code, access companion object members using the class name followed by the Companion keyword.
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Q17. Is there any Google recommendation for targetSdk version?
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Google recommends targeting the latest SDK version for better performance and security.
• Google recommends targeting the latest stable SDK version for new apps

• Updating targetSdkVersion can improve app performance and security

• It is important to regularly update targetSdkVersion to stay compliant with Google Play Store policies
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Q18. How can we show riders location without using Map SDK?
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Use geocoding APIs to convert location data into human-readable addresses.
• Use geocoding APIs like Google Geocoding API or OpenCage Geocoding API to convert latitude and longitude coordinates into human-readable addresses.

• Display the address instead of a map to show the rider's location.

• Allow riders to input their address manually if they prefer not to share their location.
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Q19. One coding question: Given an integer array nums sorted in non-decreasing order, remove the duplicates in place such that each unique element appears only once. The relative order of the elements should b...read more
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Remove duplicates from sorted array in place and return number of unique elements.
• Use two pointers approach to iterate through the array and remove duplicates in place.

• Keep track of the current unique element and update the array accordingly.

• Return the count of unique elements after removing duplicates.
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Q1. My job experience? 3year experience of Logistic as a deo 'supervisor 'associate
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I have 3 years of experience in logistics as a supervisor associate.
• Managed a team of employees to ensure efficient operations

• Coordinated transportation and distribution of goods

• Implemented strategies to optimize supply chain processes

• Resolved any issues or delays in the logistics process

• Utilized software systems to track inventory and shipments
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Q2. My self introduction My name is komal thakur I have passed 10th 12th exam from mp board and currently 1 year running from bsc from science collage my skills is deo and team hendling and operation handling
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Q3. My family beground ?
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Q4. My last Salary ?
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I prefer to focus on the value I can bring to this role rather than my previous salary.
• I believe my previous salary is not relevant to my qualifications and experience for this position.

• I am looking for a competitive salary that aligns with the responsibilities and expectations of this role.

• I am open to discussing compensation based on the market rate and my skills and expertise.

• I am more interested in the growth oppor...read more
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Q5. My running job for what ?
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Q1. What is your name
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My name is John Doe.
• My first name is John

• My last name is Doe
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Q2. Introducing ur self
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Q1. Why do you want work for us?
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I am impressed by your company's innovative approach to data analysis and want to be a part of your team.
• I admire your company's reputation in the industry

• I am excited about the opportunity to work on cutting-edge projects

• I believe my skills and experience align well with the company's goals
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Q2. What are you strength
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My strengths include strong analytical skills, attention to detail, and the ability to communicate complex data effectively.
• Strong analytical skills - able to interpret and analyze data effectively

• Attention to detail - meticulous in reviewing and ensuring accuracy of data

• Effective communication of complex data - able to present findings in a clear and understandable manner
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Involve working through a business problem or scenario with the interviewer to reach a logical conclusions

Q1. Introducing your self
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Q2. Tell me about your self
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I am a data analyst with a strong background in statistics and data visualization.
• Experienced in using statistical tools such as R and Python

• Skilled in creating insightful data visualizations using Tableau

• Proficient in SQL for data querying and manipulation

• Strong analytical and problem-solving skills

• Excellent communication and presentation abilities
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Employers will set this type of test if they need to hire a person with excellent logical skills.

Code testing refers to running each line of code with a controlled input, and verifying if it performs the expected output

Q1. Introducing the same time
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Q2. Telling me about company
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