BT Group Interview Questions, Process, and Tips

Q1. What is reset and rebase
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Q1. Fail safe and fail fast interator
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Q2. What is Spring AOP
Ans. 
Spring AOP (Aspect-Oriented Programming) is a framework that provides cross-cutting concerns in a modular way.
• Spring AOP enables separation of concerns by allowing the definition of aspects (cross-cutting concerns) separate from the main application logic.

• It allows developers to apply aspects to multiple classes without modifying the actual code of those classes.

• Examples of cross-cutting concerns that can be addressed ...read more
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Q1. They asked what you do if wifi is not working in your device?
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Q2. What is OSI model?
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The OSI model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven layers.
• The OSI model stands for Open Systems Interconnection model.

• It helps in understanding how data is transferred from one computer to another over a network.

• The seven layers are: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

• Each layer has specific functions...read more
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Q1. Tell me about your self.
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Q2. What is RAN, VLAN, 4G,5G, incident management.
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RAN stands for Radio Access Network, VLAN is Virtual Local Area Network, 4G and 5G are mobile network technologies, and incident management involves handling and resolving network issues.
• RAN (Radio Access Network) is a part of a mobile telecommunication system that connects individual devices to other parts of a network through radio connections.

• VLAN (Virtual Local Area Network) is a technology that allows multiple net...read more
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Q1. Tell me about BT, strength and weakness, small technical talk from my cv.
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Q2. Switch , router , modem questions.
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Q1. What is full form of LASER
Ans. 
Light Amplification by Stimulated Emission of Radiation
• Stands for Light Amplification by Stimulated Emission of Radiation

• Involves the emission of light through a process of stimulated emission

• Used in various applications such as surgery, communication, and manufacturing
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Q1. What are kind of topologies?
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Topologies refer to the arrangement of nodes in a network and how they communicate with each other.
• Common topologies include bus, star, ring, mesh, and hybrid.

• Bus topology uses a single cable to connect all devices.

• Star topology has all devices connected to a central hub.

• Ring topology connects devices in a circular manner.

• Mesh topology has each device connected to every other device.

• Hybrid topology combines two or more
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Q1. Why do you want to join bt group?
Ans. 
I want to join BT Group because of its reputation for innovation and commitment to providing top-notch managed services.
• BT Group is known for its cutting-edge technology and solutions in the telecommunications industry

• I am impressed by BT Group's focus on delivering excellent managed services to its clients

• I believe that joining BT Group will provide me with opportunities for professional growth and development
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Basic questions related to speed, time, efficiency

Q1. Why do we need 5ghz when we already had 2.4 GHz
Ans. 
5GHz offers faster speeds, less interference, and more channels compared to 2.4GHz.
• 5GHz provides faster data transfer speeds compared to 2.4GHz, making it ideal for high-bandwidth activities like streaming HD video or online gaming.

• 5GHz has less interference from other devices like microwaves and cordless phones that operate on the 2.4GHz frequency.

• 5GHz offers more available channels, reducing the likelihood of congest...read more
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Q2. Can you convert switch into router
Ans. 
Yes, a switch can be converted into a router by enabling routing features and configuring routing protocols.
• Enable routing features on the switch

• Configure routing protocols such as OSPF or EIGRP

• Assign IP addresses to interfaces

• Implement access control lists for security

• Install a routing software image if necessary
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