The Manik Public School Interview Questions and Answers

Q1. General questions regarding self and work
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Q1. What are the challenges or risks associated with IoT?
Ans. 
IoT faces challenges like security risks, data privacy issues, interoperability, and reliance on connectivity.
• Security Vulnerabilities: IoT devices can be hacked, leading to unauthorized access. For example, a smart thermostat could be manipulated.

• Data Privacy Concerns: Personal data collected by IoT devices can be misused. For instance, health trackers may expose sensitive health information.

• Interoperability Issues: D...read more
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Q2. What do you mean by IoT Gateway? What is the role of a gateway in IoT?
Ans. 
An IoT Gateway connects IoT devices to the cloud, facilitating data transfer and device management.
• Acts as a bridge between IoT devices and the cloud.

• Processes and filters data locally before sending it to the cloud.

• Enables device management and configuration remotely.

• Supports various communication protocols (e.g., MQTT, HTTP).

• Example: A smart home hub that connects various smart devices to the internet.
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Q3. State the difference between IoT and M2M.
Ans. 
IoT connects devices to the internet for data exchange, while M2M focuses on direct device-to-device communication without internet.
• IoT (Internet of Things) involves a network of interconnected devices that communicate over the internet.

• M2M (Machine to Machine) refers to direct communication between devices, often using wired or wireless connections.

• IoT applications include smart homes, where devices like thermostats a...read more
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Q4. Explain how IoT works.
Ans. 
IoT connects devices to the internet, enabling them to collect and exchange data for smarter decision-making.
• Devices: IoT includes various devices like smart thermostats, wearables, and connected appliances.

• Connectivity: These devices connect to the internet via Wi-Fi, Bluetooth, or cellular networks.

• Data Collection: Sensors in IoT devices gather data (e.g., temperature, heart rate) for analysis.

• Data Processing: Collec...read more
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Q1. Tell me about yourself?
Ans. 
I am a recent graduate with a degree in Computer Science and a passion for coding and problem-solving.
• Recent graduate with a degree in Computer Science

• Passionate about coding and problem-solving

• Experience with programming languages like Java, Python, and C++

• Completed internships at tech companies
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Q2. What is mern ?
Ans. 
MERN is a full stack JavaScript framework that consists of MongoDB, Express.js, React, and Node.js.
• MERN stands for MongoDB, Express.js, React, and Node.js.

• It is used for building dynamic web applications.

• MongoDB is the database, Express.js is the backend framework, React is the frontend library, and Node.js is the runtime environment.
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Q1. Singleton Design Patten
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Q2. Super keyword
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Q1. Use of This Keyword
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The 'this' keyword in Java refers to the current instance of a class.
• Used to refer to instance variables or methods within a class.

• Avoids naming conflicts between instance variables and local variables.

• Can be used to pass the current object as a parameter to another method.
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Q2. Describe difference between MVC and Hibernate.
Ans. 
MVC is a design pattern for organizing code in separate layers, while Hibernate is an ORM tool for mapping Java objects to database tables.
• MVC stands for Model-View-Controller and is used to separate the application into three interconnected components: the model (data), the view (UI), and the controller (logic).

• Hibernate is an ORM (Object-Relational Mapping) tool that maps Java objects to database tables, simplifying ...read more
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Q1. Whats your background ? How is your presentation skills? How would you set the target for business?
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Q2. Whats your relevant experience ?
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General Aptitude, and Basic java questions

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Time and work,coding,trains

Social media and cricket