Kenmore Vikas India Interview Questions and Answers

L2 VPN operates at the data link layer, while L3 VPN operates at the network layer.

• L2 VPN provides layer 2 connectivity between remote sites, while L3 VPN provides layer 3 connectivity.

• L2 VPN uses MAC addresses for forwarding, while L3 VPN uses IP addresses.

• L2 VPN is typically used for connecting LANs, while L3 VPN is used for connecting networks.

• L2 VPN is transparent to the network layer protocols, while L3 VPN requires routing protocols.

• Examples of L2 VPN technologies inclu...read more

Routing involves forwarding data packets between networks, while switching involves forwarding data packets within a network.

• Routing is done between different networks, while switching is done within the same network.

• Routing uses IP addresses to make decisions on where to send data packets, while switching uses MAC addresses.

• Routers are used for routing, while switches are used for switching.

• Routing is more complex and involves making decisions based on network protocols, whi...read more

VLAN stands for Virtual Local Area Network, used to logically segment a network for better performance, security, and management.

• VLANs divide a single physical network into multiple virtual networks, improving network efficiency.

• They enhance security by isolating traffic within specific VLANs, preventing unauthorized access.

• VLANs simplify network management by allowing administrators to group devices based on function or department.

• Example: VLAN 10 for finance department, VLA...read more

STP stands for Spanning Tree Protocol, a network protocol that ensures a loop-free topology in Ethernet networks.

• STP prevents loops in Ethernet networks by blocking redundant paths

• It elects a root bridge to serve as the central point for the network

• STP calculates the shortest path to the root bridge for each switch

• Common variants include RSTP (Rapid Spanning Tree Protocol) and MSTP (Multiple Spanning Tree Protocol)

Etherchannel is used to increase bandwidth and provide redundancy by bundling multiple physical links into a single logical link.

• Increases bandwidth by combining multiple links into one logical link

• Provides redundancy in case of link failure

• Improves network performance and load balancing

• Supported by various network devices such as switches and routers

Subnetting allows for efficient use of IP addresses and helps in organizing network traffic.

• Subnetting helps in dividing a large network into smaller, more manageable subnetworks.

• It reduces network congestion by limiting broadcast domains.

• Subnetting improves security by isolating different parts of the network.

• It allows for efficient use of IP addresses by allocating them based on network requirements.

• Subnetting helps in optimizing network performance by controlling traffic f...read more

India is a diverse country with a rich cultural heritage. Railtel Corporation of India is a public sector enterprise that provides telecom infrastructure services.

• India is the second-most populous country in the world with a population of over 1.3 billion people.

• India is known for its diverse culture, languages, and religions.

• Railtel Corporation of India is a public sector enterprise that provides telecom infrastructure services to the Indian Railways.

• The current CMD of Railt...read more

OSI model is a conceptual model that characterizes and standardizes the communication functions of a telecommunication or computing system.

• OSI stands for Open Systems Interconnection.

• It has 7 layers, each with a specific function.

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

• Each layer communicates with the layer above and below it.

• Example: HTTP (Application layer) uses TCP (Transport layer) to establish a connection and trans...read more