170 Jasmin infotech pvt ltd Interview Questions and Answers

20 common asked question in every interview

IOS

Ques:- How do POS systems work in multi store environments

Asked In :- Queppelin Technology Solutions, Wonderbiz Technologies, Nalsoft, Mobily Infotech, DigiQ Solutions, jasmin infotech pvt ltd,

Right Answer:
POS systems in multi-store environments work by centralizing data from all locations into a single system. Each store has its own POS terminal that processes transactions, while the central system manages inventory, sales data, and reporting across all stores. This allows for real-time updates, consistent pricing, and streamlined operations, enabling better management and analysis of performance across multiple locations.

IOS

Ques:- What is the App Store review process and what are its guidelines

Asked In :- mobifly, Mundrisoft Solutions LLP, Mobily Infotech, Yotta Techports, jasmin infotech pvt ltd,

Right Answer:
The App Store review process involves Apple reviewing your app for compliance with their guidelines before it can be published. The guidelines cover areas such as safety, performance, business, design, and legal requirements. Apps must be functional, free of bugs, adhere to privacy policies, and not contain inappropriate content. The review typically takes a few days, and developers can appeal decisions if their app is rejected.

IOS

Ques:- How do you secure data in an iOS app

Asked In :- DigiQ Solutions, Yotta Techports, pinnacle infotech, jasmin infotech pvt ltd,

Right Answer:
To secure data in an iOS app, you can use the following methods:

1. **Keychain Services**: Store sensitive information like passwords and tokens securely.
2. **Data Encryption**: Encrypt sensitive data before storing it, using libraries like CommonCrypto or third-party solutions.
3. **Secure Coding Practices**: Validate and sanitize inputs to prevent injection attacks.
4. **Use HTTPS**: Ensure all network communications are encrypted using HTTPS.
5. **App Transport Security (ATS)**: Enable ATS to enforce secure connections.
6. **User Authentication**: Implement biometric authentication (Face ID, Touch ID) or other secure login methods.
7. **Data Protection API**: Use iOS's built-in data protection features to encrypt files when the device is locked.
8. **Obfuscation**: Obfuscate code and sensitive data to make it harder to reverse-engineer.

By combining these methods, you can enhance the security of your iOS app's data.

IOS

Ques:- How does customer data get stored and used in POS

Asked In :- mobifly, TalentServ Consulting, jasmin infotech pvt ltd, mobile programming llc.,

Right Answer:
Customer data in a POS (Point of Sale) system is typically stored in a database, which can be local or cloud-based. This data includes customer names, contact information, purchase history, and payment details. It is used for processing transactions, managing inventory, analyzing sales trends, and providing personalized marketing or loyalty programs.

IOS

Ques:- What are push notifications and how are they implemented

Asked In :- Mobily Infotech, Profound Edutech, Amshuhu, cardekho, pinnacle infotech, jasmin infotech pvt ltd, mobile programming llc., 4w technologies, zakapps, one banc,

Right Answer:
Push notifications are messages sent from a server to a user's device to alert them of updates or new information. They are implemented using services like Apple Push Notification service (APNs) for iOS. To implement push notifications, you need to:

1. Register your app with APNs to obtain a device token.
2. Send the device token to your server.
3. Your server sends a notification payload to APNs using the device token.
4. APNs delivers the notification to the user's device, which can display it or trigger an action in the app.

Flutter

Ques:- What is Flutter and how is it different from other frameworks?

Asked In :- Wonderbiz Technologies, Cumulations Technologies, Mobiotics, Amshuhu, Propel Technology, people tech group inc, jasmin infotech pvt ltd,

Right Answer:

Flutter is an open-source UI software development kit created by Google for building natively compiled applications for mobile, web, and desktop from a single codebase. It differs from other frameworks by using the Dart programming language, providing a rich set of pre-designed widgets, and offering hot reload for fast development, which allows developers to see changes in real-time without restarting the app.

Flutter

Ques:- What is an InheritedWidget and when would you use it?

Asked In :- Mundrisoft Solutions LLP, Amtex Software Solutions, Vanilla Networks, BluePi, ApMoSys Technologies, Mitsogo Technologies, Oakland Systems, Enest Technologies, jasmin infotech pvt ltd, relisource,

Right Answer:

An InheritedWidget is a special type of widget in Flutter that allows data to be efficiently shared down the widget tree. You would use it when you need to pass data to multiple child widgets without having to pass the data explicitly through constructors, especially when the data is needed by many widgets at different levels of the tree.

Flutter

Ques:- What are keys in Flutter, and why are they important?

Asked In :- Velocity Software Solutions, POPCORNAPPS SOFTWARE PVT, Appscrip, Mundrisoft Solutions LLP, Relinns Technologies, Mitsogo Technologies, TalentServ Consulting, Propel Technology, Oakland Systems, Thinkitive Technologies,

Right Answer:

Keys in Flutter are unique identifiers for widgets, elements, and semantic nodes. They are important because they help Flutter differentiate between widgets when rebuilding the widget tree, ensuring that the state and properties of widgets are preserved correctly during updates, especially in lists or when the widget structure changes.

Flutter

Ques:- What is the difference between hot reload and hot restart?

Asked In :- ProMobi Technologies, POPCORNAPPS SOFTWARE PVT, Mundrisoft Solutions LLP, Vanilla Networks, Aptroid, Wonderbiz Technologies, Nalsoft, EvolveWare, APPS Team Technologies, TalentServ Consulting,

Right Answer:

Hot reload updates the code in the running app without losing its state, allowing you to see changes instantly. Hot restart, on the other hand, restarts the app completely, losing its current state and reloading the entire application from scratch.

Flutter

Ques:- What is the widget lifecycle in Flutter?

Asked In :- Velocity Software Solutions, AHEX TECHNOLOGIES, ProMobi Technologies, POPCORNAPPS SOFTWARE PVT, Cumulations Technologies, APPS Team Technologies, Mobiotics, Zoxima, jasmin infotech pvt ltd, adam milo,

Right Answer:

In Flutter, the widget lifecycle consists of the following stages:

1. **Creation**: The widget is created and initialized.
2. **Build**: The widget's `build` method is called to render the UI.
3. **Update**: If the widget's state changes, the `build` method is called again to update the UI.
4. **Dispose**: When the widget is removed from the widget tree, the `dispose` method is called to clean up resources.

For StatefulWidgets, the lifecycle includes additional methods like `initState`, `didChangeDependencies`, and `setState`.

Core PHP CSS 3 HTML MySQL wordpress

Ques:- 39 persons can repair a road in 12 days, working 5 hours a day. In how many days will 30 persons, working 6 hours a day, complete the work?

Asked In :- Smart TV Broadcasting, Cineworld Cinemas, torry harris business solutions, eph, wattpad, mercedes amg petronas formula one team, jasmin infotech pvt ltd, scandiweb, trivium esolutions,

Right Answer:
The work will be completed in 15 days.

Database Administrator (dba) MySQL

Ques:- What is the difference between a data item and a query item?

Asked In :- Twilio, AppSquadz, Kloudrac, Ulearn, jasmin infotech pvt ltd, techsol corporation, vymo, flexisaf edusoft limited,

Database Analyst/ Programmer MySQL

Ques:- Which date function returns number value

Asked In :- PreludeSys India, jda software, jasmin infotech pvt ltd,

Database Architect/ Designer MySQL

Ques:- What is trigger,cursor,functions in pl-sql and we need sample programs about it?

Asked In :- ProMobi Technologies, Yazaki, TechRAQ Info Solutions, Umang, people tech group inc, jasmin infotech pvt ltd,

Database Analyst/ Programmer MySQL

Ques:- What are the pre requisites ?

Asked In :- Hummingbird Web Solutions, Brokerbay, jasmin infotech pvt ltd, emv,

MongoDB

Ques:- What is MongoDB and how does it differ from relational databases

Asked In :- PreludeSys India, Code Board Technology, Aptroid, tringapps, Webtech Developers, ApMoSys Technologies, Metrics4 Analytics, Cumulations Technologies, Ospyn Technologies, TalentServ Consulting,

Right Answer:
MongoDB is a NoSQL database that stores data in flexible, JSON-like documents, allowing for dynamic schemas. Unlike relational databases, which use structured tables and fixed schemas, MongoDB can handle unstructured data and scale horizontally, making it more suitable for applications with varying data types and large volumes of data.

MongoDB

Ques:- What are indexes in MongoDB and how do they improve performance

Asked In :- ProMobi Technologies, The Unified Cloud, Twilio, Code Board Technology, Xenovex technologies, City Union Bank, tringapps, Nalsoft, Eidiko Systems Integrators, EvolveWare,

Right Answer:
Indexes in MongoDB are special data structures that store a small portion of the data set in an easily traversable form. They improve performance by allowing the database to quickly locate and access the data without scanning every document in a collection, thus speeding up query execution and reducing latency.

MongoDB

Ques:- How does MongoDB store data internally

Asked In :- Shipmnts, Code Board Technology, Aptroid, Young Globes, BluePi, C-Edge Technologies, tringapps, Webtech Developers, EvolveWare, Profound Edutech,

Right Answer:
MongoDB stores data internally in a binary format called BSON (Binary JSON), which allows for rich data types and efficient storage. Data is organized in collections, and each collection contains documents, which are similar to JSON objects.

MongoDB

Ques:- What are CRUD operations in MongoDB

Asked In :- AHEX TECHNOLOGIES, Angular Minds, Twilio, PreludeSys India, Vanilla Networks, V2STech Solutions, BluePi, Webtech Developers, ApMoSys Technologies, BridgeLabz Solutions,

Right Answer:
CRUD operations in MongoDB refer to the four basic functions that can be performed on data:

1. **Create**: Insert new documents into a collection.
2. **Read**: Retrieve documents from a collection.
3. **Update**: Modify existing documents in a collection.
4. **Delete**: Remove documents from a collection.

MongoDB

Ques:- What are the main features of MongoDB

Asked In :- AHEX TECHNOLOGIES, Xtreme Softech, PrimeSoft Solutions, Nalsoft, Cron-J, BridgeLabz Solutions, Relinns Technologies, Ulearn, TechRAQ Info Solutions, yardi,

Right Answer:
The main features of MongoDB are:

1. **Document-Oriented Storage**: Stores data in flexible, JSON-like documents.
2. **Scalability**: Supports horizontal scaling through sharding.
3. **High Availability**: Provides replica sets for automatic failover and data redundancy.
4. **Flexible Schema**: Allows for dynamic schemas, enabling easy changes to data structure.
5. **Rich Query Language**: Supports complex queries, indexing, and aggregation.
6. **Built-in Aggregation Framework**: Facilitates data processing and transformation.
7. **Geospatial Indexing**: Supports location-based queries.
8. **Strong Consistency**: Ensures data consistency across distributed systems.

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Jasmin Infotech Pvt Ltd is a leading technology company headquartered in Chennai, India, specializing in software development, embedded systems, and engineering services. Established in 1998, the company has grown to become a trusted partner for numerous global clients across various industries. With a team of highly skilled professionals, Jasmin Infotech offers end-to-end solutions, from concept to deployment, catering to the diverse needs of its clients. Their expertise spans across domains such as automotive, healthcare, telecommunications, and industrial automation. One of the key strengths of Jasmin Infotech lies in its commitment to innovation and quality. The company emphasizes continuous learning and keeps pace with the latest advancements in technology to deliver cutting-edge solutions. They leverage advanced tools and methodologies to ensure efficiency and reliability in their deliverables. Moreover, Jasmin Infotech places a strong emphasis on customer satisfaction, striving to exceed expectations through timely delivery and personalized support. This customer-centric approach has earned the company a reputation for excellence in the industry. Overall, Jasmin Infotech Pvt Ltd stands as a beacon of technological prowess and reliability, driving innovation and delivering value to its clients worldwide.

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