Railtel Corporation Of India Interview Questions, Process, and Tips

Q1. Can you briefing What is STP
Ans. 
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)
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Q2. Why using etherchannel
Ans. 
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
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Q3. What is different between routing and switching
Ans. 
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...read more
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Q1. Why we are using subnetting
Ans. 
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 ...read more
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Q2. What is what and why we are using vlan
Ans. 
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 ...read more
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Q1. Not available because still not give interview
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Q2. Not possible because still not give interview process
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Q1. Any Technical jobs opening ?
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Q2. Is there a permanent office located in Imphal?
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Group discussions were very helpful in completing a lot of work.

Prepare bills promptly in conjunction with the technical work.

To study various cases, I travel to different places.

Q1. What is switch and it's working
Ans. 
A switch is a networking device that connects devices within a local area network (LAN) and forwards data packets between them.
• Switch operates at the data link layer of the OSI model

• It uses MAC addresses to forward data to the correct destination

• Switches increase network performance by reducing collisions and segmenting traffic

• Examples of switches include Cisco Catalyst series, Juniper EX series, etc.
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Q2. What is router and it's working
Ans. 
A router is a networking device that forwards data packets between computer networks. It operates at the network layer of the OSI model.
• Routes data packets between different networks

• Uses IP addresses to determine where to send data packets

• Helps in creating and maintaining a network topology

• Can be configured with access control lists to control traffic flow
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