Lester Infoservices Technical Lead Interview Questions and Answers

Asked to write a code to select values on the basis of the map keys using java 8 stream API

Q1. How OAuth works?
Ans. 
OAuth is an open standard for access delegation, commonly used as a way for Internet users to grant websites or applications access to their information on other websites but without giving them the passwords.
• OAuth allows users to grant access to their information without sharing their passwords.

• It is commonly used for authentication and authorization in web applications.

• OAuth uses tokens to grant access to resources o...read more
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Q2. Benefits of using Stream API.
Ans. 
Stream API provides a way to process collections of objects in a functional style.
• Allows for concise and readable code

• Supports parallel processing for improved performance

• Provides a set of powerful functions like map, filter, reduce, etc.

• Enables lazy evaluation for better memory efficiency
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Q1. Salary Negotiation
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Q1. Technical stack in mobile application?
Ans. 
The technical stack in mobile application includes programming languages, frameworks, libraries, and tools used to develop the app.
• Programming languages: Java, Kotlin, Swift, Objective-C

• Frameworks: React Native, Flutter, Xamarin

• Libraries: Retrofit, Alamofire, Glide, Picasso

• Tools: Android Studio, Xcode, Visual Studio

• Other technologies: RESTful APIs, Firebase, Push notifications
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Q2. Native library’s in ios ?
Ans. 
Native libraries are pre-compiled code that can be used in iOS apps for various functionalities.
• Native libraries are written in languages like C, C++, and Objective-C.

• They can be used for tasks like image processing, audio and video playback, and networking.

• Examples of native libraries in iOS include Core Data, Core Graphics, and Core Animation.
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Q1. Tell me about Yourself
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Q2. How many months you suffer in in this company
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Q3. If you have better opportunity are you left this company or if great opportunity is there or not ?
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That was a own question based upon interviewer

Q1. How many years of experience you have in Azure ?
Ans. 
I have 5 years of experience working with Azure cloud services.
• 5 years of hands-on experience with Azure cloud services

• Proficient in Azure Virtual Machines, Azure Storage, Azure Functions, etc.

• Experience in designing and implementing Azure solutions for various projects
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Q2. What is the Azure ?
Ans. 
Azure is a cloud computing platform by Microsoft.
• Cloud computing platform by Microsoft

• Offers services like virtual machines, databases, AI, and more

• Allows for scalability and flexibility in IT infrastructure

• Examples: Azure Virtual Machines, Azure SQL Database, Azure Cognitive Services
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Q1. What's is the difference between cloud and on premises
Ans. 
Cloud refers to services and resources accessed over the internet, while on premises refers to resources located within an organization's physical location.
• Cloud services are accessed over the internet, allowing for scalability and flexibility.

• On premises resources are physically located within an organization's own data center or server room.

• Cloud services are typically managed and maintained by a third-party provider...read more
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Q2. What is the MFA
Ans. 
MFA stands for Multi-Factor Authentication, a security measure that requires multiple forms of verification to access a system.
• MFA typically involves something you know (password), something you have (smartphone for receiving a code), and something you are (fingerprint or facial recognition).

• Examples of MFA include using a password along with a one-time code sent to your phone, or using a fingerprint scan along with a
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Q3. What is difference between Customer and client
Ans. 
A customer is an individual or organization that purchases goods or services, while a client is a person or entity that receives professional services or advice.
• Customers typically make one-time purchases, while clients often have ongoing relationships with service providers.

• Customers may not have a direct relationship with the seller, while clients usually have a more personal connection with their service provider.

• Cu...read more
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Asked to write a code to select values on the basis of the map keys using java 8 stream API

Q1. How OAuth works?
Ans. 
OAuth is an open standard for access delegation, commonly used as a way for Internet users to grant websites or applications access to their information on other websites but without giving them the passwords.
• OAuth allows users to grant access to their information without sharing their passwords.

• It is commonly used for authentication and authorization in web applications.

• OAuth uses tokens to grant access to resources o...read more
Answered by AI
Add your answer
Q2. Benefits of using Stream API.
Ans. 
Stream API provides a way to process collections of objects in a functional style.
• Allows for concise and readable code

• Supports parallel processing for improved performance

• Provides a set of powerful functions like map, filter, reduce, etc.

• Enables lazy evaluation for better memory efficiency
Answered by AI
Add your answer

Q1. Salary Negotiation
Add your answer