Bharti Airtel
20+ Namma Superstars Magazine Interview Questions and Answers
Q1. Study MPLS deeply: 1. What is MPLS ? 2. Purpose of MPLS ? 3. What is LDP and its working ? 4. CEF ? 5. MP-BGP 6. MPLS-VPN 7. VRF/RT/RD ? 8. Types and uses of labels ? 9. MPLS Traffic flow ? 10. MPLS header ? 11...
read moreMPLS is a protocol used to efficiently route network traffic by assigning labels to packets.
MPLS stands for Multiprotocol Label Switching
It is used to improve network performance and reduce congestion
LDP (Label Distribution Protocol) is used to distribute labels to network devices
CEF (Cisco Express Forwarding) is a fast switching technology used in MPLS networks
MP-BGP (Multiprotocol Border Gateway Protocol) is used to exchange routing information between different autonomous ...read more
Q2. What is multiplexer and de multiplexer?
Multiplexer is a device that combines multiple signals into one signal. Demultiplexer is a device that separates one signal into multiple signals.
Multiplexer is also known as MUX.
It is used to increase the capacity of a communication channel.
Demultiplexer is also known as DEMUX.
It is used to route a single input signal to multiple output signals.
Multiplexer and demultiplexer are commonly used in digital communication systems.
Example: A 4:1 MUX can combine four input signals i...read more
Q3. What is OFC?
OFC stands for Optical Fiber Cable, which is a type of cable made of glass or plastic fibers that transmit data using light.
OFC is used for high-speed data transmission over long distances.
It is commonly used in telecommunications, internet, and cable TV networks.
OFC is more reliable and has higher bandwidth than traditional copper cables.
Examples of OFC include single-mode fiber and multi-mode fiber.
OFC requires specialized equipment for installation and maintenance.
Q4. What is ospf and OSI model
OSPF is a routing protocol used to exchange routing information within a single autonomous system. OSI model is a conceptual model used to describe network communication.
OSPF stands for Open Shortest Path First
It is a link-state routing protocol
OSPF uses Dijkstra's algorithm to calculate the shortest path
OSPF is used within a single autonomous system
OSI model has 7 layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application
It is a conceptual model ...read more
Q5. What is communication ? Define TP IP protocol?
Communication is the exchange of information between two or more parties.
Communication involves a sender, a message, a channel, a receiver, and feedback.
It can be verbal or nonverbal, written or spoken, and can occur through various mediums such as email, phone, or face-to-face.
Effective communication is essential for successful relationships, both personal and professional.
TCP/IP is a protocol used for communication between devices on a network.
TCP (Transmission Control Prot...read more
Q6. Do you know about Networking system
Yes, I know about Networking system.
I have experience in designing, implementing and maintaining network infrastructure.
I am familiar with various networking protocols such as TCP/IP, DNS, DHCP, and VLANs.
I have worked with network devices such as routers, switches, firewalls, and load balancers.
I am proficient in network troubleshooting and performance tuning.
I keep myself updated with the latest networking technologies and trends.
Q7. What is vlan and switching
VLAN is a logical grouping of network devices and Switching is the process of forwarding data packets between network devices.
VLAN stands for Virtual Local Area Network
It allows network administrators to group devices together based on their function or location
Switching is the process of forwarding data packets between network devices
Switches use MAC addresses to determine where to forward packets
Switching can be done at layer 2 (data link layer) or layer 3 (network layer)
Q8. Do you know about airtelx fiber
AirtelX Fiber is a high-speed broadband service offered by Airtel in India.
AirtelX Fiber offers internet speeds up to 1 Gbps.
It uses fiber optic technology for faster and more reliable internet connectivity.
AirtelX Fiber plans come with unlimited data and free voice calling.
It is currently available in select cities in India including Delhi, Mumbai, Bangalore, and Chennai.
Q9. What is OTDR?
OTDR stands for Optical Time Domain Reflectometer. It is a device used to test and troubleshoot fiber optic networks.
OTDR sends a pulse of light into the fiber and measures the time and strength of the reflected signal.
It can detect faults such as breaks, bends, and splices in the fiber.
OTDR can also measure the length of the fiber and the attenuation of the signal.
It is an essential tool for maintaining and repairing fiber optic networks.
Example brands of OTDR include Fluke ...read more
Q10. Define DWDM? What is OTN ?
DWDM stands for Dense Wavelength Division Multiplexing. OTN stands for Optical Transport Network.
DWDM is a technology used in optical communication to increase bandwidth over existing fiber optic networks.
It allows multiple wavelengths of light to be transmitted over a single fiber optic cable.
OTN is a digital transport protocol used to transmit data over optical networks.
It provides features such as error correction, performance monitoring, and network resiliency.
OTN is used...read more
Q11. What is fibers in networking
Fibers are thin strands of glass or plastic used to transmit data over long distances in networking.
Fibers use light to transmit data instead of electrical signals.
They have a higher bandwidth and can transmit data over longer distances than copper cables.
Fibers are used in long-haul networks, data centers, and even in some home internet connections.
Examples of fiber optic cables include single-mode and multi-mode fibers.
Q12. Brief Network Non Stop in 8 min ?
Network Non Stop is a feature that allows for continuous network operation without interruption.
Network Non Stop ensures uninterrupted network operation during maintenance or upgrades.
It allows for seamless failover and redundancy to prevent downtime.
Examples include Cisco Nonstop Forwarding (NSF) and Virtual Router Redundancy Protocol (VRRP).
Q13. Explain briefly the work of TCP/IP?
TCP/IP is a set of protocols used for communication between devices on a network.
TCP (Transmission Control Protocol) ensures reliable data delivery.
IP (Internet Protocol) handles addressing and routing of data packets.
TCP/IP is the foundation of the internet and allows devices to communicate with each other.
Examples of TCP/IP applications include web browsing, email, and file transfer.
Q14. RFS ready for service
RFS ready for service refers to the status of a network element or service that is ready to be used by end-users.
RFS is a term commonly used in telecommunications and networking industries
It indicates that a network element or service has been tested and is ready for use by end-users
RFS is often used in the context of new installations or upgrades
For example, when a new cell tower is installed, it is not considered RFS until it has been tested and is ready to provide service ...read more
Q15. Played a game of logical reasoning?
Yes, logical reasoning games help improve problem-solving skills and critical thinking.
Logical reasoning games involve solving puzzles or problems using deductive reasoning.
These games can help improve problem-solving skills and critical thinking abilities.
Examples of logical reasoning games include Sudoku, chess, and brain teasers.
Q16. What is Virtualization
Virtualization is the process of creating a virtual version of a device or resource, such as a server, storage device, network or operating system.
Virtualization allows multiple virtual instances to run on a single physical machine
It helps in optimizing resources and improving efficiency
Examples include VMware for server virtualization, VirtualBox for desktop virtualization
Q17. What are network topology
Network topology refers to the layout of a network and how different devices are connected.
Network topology defines how devices are arranged and connected in a network
Common network topologies include bus, star, ring, mesh, and hybrid
Each topology has its own advantages and disadvantages
Examples: Bus topology - all devices connected to a single cable; Star topology - all devices connected to a central hub
Q18. Node insertion for Eci node
Node insertion for Eci node
Node insertion involves physically installing a new node into the network
For Eci nodes, the process may involve configuring the node's IP address and connecting it to the network
Proper documentation and testing should be done before and after node insertion
Q19. What is cat 6 wiring
Cat 6 wiring is a type of Ethernet cable used for high-speed internet connections.
Cat 6 wiring is an upgrade from Cat 5 and Cat 5e wiring.
It has a higher bandwidth capacity and can support faster data transfer rates.
It is commonly used in businesses and homes for internet connections.
Cat 6 wiring has stricter specifications for crosstalk and system noise.
It is backward compatible with Cat 5 and Cat 5e wiring.
Cat 6 wiring is typically more expensive than Cat 5 and Cat 5e wirin...read more
Q20. LAN TECHNOLOGY in detail
LAN technology refers to the methods and protocols used to create local area networks for connecting devices within a limited geographical area.
LAN technology includes Ethernet, Wi-Fi, and Token Ring.
Ethernet is the most common LAN technology, using CSMA/CD for collision detection.
Wi-Fi uses wireless signals to connect devices within a LAN.
Token Ring is a less common LAN technology that uses a token-passing protocol.
LAN technologies often use switches or hubs to connect devic...read more
Q21. OSI Model layer functionality
The OSI Model defines the functions of each layer in a network communication system.
Physical layer - transmits raw data bits over a physical medium
Data link layer - provides error detection and correction, and organizes data into frames
Network layer - routes data packets between different networks
Transport layer - ensures reliable data delivery and manages end-to-end communication
Session layer - establishes, maintains, and terminates connections between applications
Presentati...read more
Q22. TCP IP MODEL in detail
TCP/IP model is a conceptual framework used for understanding networking protocols.
Consists of four layers: Application, Transport, Internet, Link
Each layer has specific functions and protocols
Data is encapsulated and decapsulated as it moves through the layers
Example: HTTP operates at the Application layer, TCP at the Transport layer
Q23. Router technique
Router technique refers to the method used by a router to determine the best path for forwarding data packets.
Routing protocols like OSPF, EIGRP, and BGP are used to determine the best path for data packets
Static routing involves manually configuring the routes on the router
Dynamic routing allows routers to communicate with each other to determine the best path
Packet switching is used by routers to forward data packets based on destination IP address
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