Bharti Airtel Associate Interview Questions and Answers

Q1. What are networking devices
Ans. 
Networking devices are hardware devices that facilitate communication and data transfer between different devices in a network.
• Networking devices include routers, switches, hubs, modems, and firewalls.

• Routers are used to connect multiple networks together and direct traffic between them.

• Switches are used to connect devices within a network and direct traffic between them.

• Hubs are used to connect multiple devices within...read more
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Q2. Few questions on OSI model
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Q3. Routing protocaols and their merits demerits
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Routing protocols are used to determine the best path for data to travel between networks.
• There are two types of routing protocols: distance-vector and link-state.

• Distance-vector protocols are simpler but less efficient than link-state protocols.

• Examples of distance-vector protocols include RIP and IGRP.

• Examples of link-state protocols include OSPF and IS-IS.

• Routing protocols have different metrics to determine the bes...read more
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Q1. Explain the dwdm architect
Ans. 
DWDM architect stands for Dense Wavelength Division Multiplexing architect, which is a technology used in fiber optic communications.
• DWDM architect is a technology that allows multiple data streams to be transmitted simultaneously over a single fiber optic cable by using different wavelengths of light.

• It increases the capacity of the fiber optic network by allowing more data to be transmitted over longer distances.

• DWDM...read more
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Q2. Explain about the current job and the experience in dwdm
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Q3. What are the modules in ciena 6500
Ans. 
The modules in Ciena 6500 are line modules, switch modules, and control modules.
• Line modules handle the physical interfaces and connections.

• Switch modules manage the switching and routing functions.

• Control modules oversee the overall system operation and management.
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Q4. What is ROADM and its functions
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ROADM stands for Reconfigurable Optical Add-Drop Multiplexer. It is a device used in optical fiber networks to add, drop, or reroute specific wavelengths of light.
• ROADM allows for flexible and dynamic allocation of bandwidth in optical networks.

• It can add or drop specific wavelengths of light without affecting the rest of the network traffic.

• ROADM can be remotely controlled to reconfigure the network as needed.

• Examples...read more
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Q1. Salary expectation negotiation , and shift timing ?
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Fibonacci series coding q

Q1. Sql basics ,oops concepts
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Q2. Projects and other stuff
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Q1. How to install operating system?
Ans. 
To install an operating system, you need to boot from the installation media and follow the on-screen instructions.
• Insert the installation media (such as a USB drive or DVD) into the computer

• Restart the computer and boot from the installation media

• Follow the on-screen instructions to select language, partition the disk, and install the OS

• Wait for the installation process to complete and then restart the computer
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Q2. Difference between router & Switch
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Router connects multiple networks while switch connects devices within a network.
• Router operates at the network layer (Layer 3) of the OSI model, while switch operates at the data link layer (Layer 2).

• Router uses IP addresses to route data between different networks, while switch uses MAC addresses to forward data within a network.

• Router can determine the best path for data packets to travel between networks, while swi...read more
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Codings were asked to write in java

Q1. Telecom basics- 2G, 3G, 4G, Networking
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Q2. Architecture of 2G, 3G, 4G
Ans. 
2G is based on GSM technology, 3G on UMTS/WCDMA, and 4G on LTE technology.
• 2G (Second Generation) uses GSM technology for digital cellular networks.

• 3G (Third Generation) uses UMTS/WCDMA technology for faster data transmission.

• 4G (Fourth Generation) uses LTE technology for even faster data speeds.

• Each generation offers improvements in speed, capacity, and efficiency.

• 5G is the latest generation, offering even faster speed
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Q3. Call flow of 4G
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4G call flow involves multiple steps like network registration, authentication, connection setup, data transfer, and release.
• User equipment (UE) connects to the base station (eNodeB)

• UE sends a connection request to the eNodeB

• eNodeB forwards the request to the Mobility Management Entity (MME)

• MME authenticates the UE and assigns it an IP address

• Data transfer occurs between the UE and the eNodeB

• Upon completion, the connec
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Q4. 5G Architecture and it's functions
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5G architecture is a network design that allows for faster data speeds, lower latency, and increased capacity.
• 5G architecture includes three main components: user equipment (UE), radio access network (RAN), and core network.

• UE connects to the RAN through wireless links, which then connects to the core network.

• The core network manages the flow of data between the UE and external networks, such as the internet.

• 5G archite...read more
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Math, Reasoning, English

Q1. Salary discussion
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It consisted mcq's based on C++ concepts and aptitude questions.

Q1. What is Inheritance, polymorphism, virtual constructor..etc
Ans. 
Inheritance is a mechanism in OOP where a class inherits properties and behaviors from another class. Polymorphism allows objects of different classes to be treated as objects of a common superclass. Virtual constructor is a constructor that can be overridden in a derived class.
• Inheritance allows a class to inherit properties and behaviors from another class.

• Polymorphism enables objects of different classes to be treat...read more
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Q1. Introduce yourself
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Q2. Why you want to join Huawei
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