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OSPF, VLAN, BGP, and TCP are all important networking protocols used in the field of network engineering.
OSPF (Open Shortest Path First) is a routing protocol used to determine the best path for data packets in a network.
VLAN (Virtual Local Area Network) is a method of creating multiple virtual networks within a single physical network.
BGP (Border Gateway Protocol) is an exterior gateway protocol used to exchange routi...
OSPF (Open Shortest Path First) is a routing protocol used in IP networks to determine the best path for data packets.
OSPF has four states: Down, Init, 2-Way, Exstart, Exchange, Loading, and Full.
During the Down state, the router does not have any information about its neighbors.
In the Init state, the router sends Hello packets to discover neighbors.
The 2-Way state is when bidirectional communication is established bet...
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Benefits and advantages of being a Network Engineer include high demand, competitive salary, opportunities for growth, and job security.
High demand for network engineers in various industries
Competitive salary compared to other IT roles
Opportunities for growth and advancement in the field
Job security due to the increasing reliance on technology and networks
Ability to work on cutting-edge technologies and projects
TCS interview questions for designations
I applied via Recruitment Consulltant and was interviewed in Mar 2024. There was 1 interview round.
SD-WAN architecture is a software-defined approach to managing wide area networks.
SD-WAN uses software to control the connectivity, management, and services between data centers and remote branches.
It allows for centralized control and automation of network traffic.
SD-WAN can prioritize critical applications and optimize bandwidth usage.
Examples of SD-WAN vendors include Cisco, VMware, and Silver Peak.
STP selection process determines the root bridge and designated ports in a network.
STP selection process starts by electing a root bridge based on the lowest bridge ID.
Each switch then determines the best path to the root bridge.
Designated ports are selected on each segment based on the lowest path cost to the root bridge.
Non-designated ports are put in blocking state to prevent loops in the network.
OSPF LSA types include Router LSA, Network LSA, Summary LSA, and ASBR Summary LSA, each serving different purposes in OSPF routing.
Router LSA: Describes the router's directly connected links.
Network LSA: Represents multi-access networks and lists all routers connected to the network.
Summary LSA: Summarizes routes from one area to another.
ASBR Summary LSA: Summarizes external routes injected into OSPF by an ASBR.
LSA typ...
BGP states refer to the different stages a BGP session goes through during establishment and maintenance.
Idle state: Initial state when BGP process starts
Connect state: Attempting to establish a TCP connection
OpenSent state: Sending an OPEN message to peer
OpenConfirm state: Waiting for an OPEN message from peer
Established state: BGP peers are fully synchronized and exchanging routing information
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Data link layer is responsible for node-to-node communication, while network layer is responsible for end-to-end communication.
Data link layer operates at Layer 2 of the OSI model and is responsible for framing, error detection, and flow control.
Network layer operates at Layer 3 of the OSI model and is responsible for logical addressing, routing, and path determination.
Examples of data link layer protocols include Ethe...
Firewall filters traffic based on security rules, while router forwards data packets between networks.
Firewall is used to block or allow traffic based on security rules, while router is used to forward data packets between networks
Firewall operates at the network layer (Layer 3) or above, while router operates at the network layer (Layer 3)
Firewall can inspect and filter traffic based on IP addresses, ports, protocols,...
I was interviewed in Aug 2024.
I work with my team to design, implement, and maintain network infrastructure to ensure optimal performance and security.
Collaborate with team members to plan and design network infrastructure
Implement network solutions based on project requirements
Monitor and troubleshoot network issues to ensure optimal performance
Contribute to network security by implementing best practices and protocols
Document network configuratio
I applied via Naukri.com and was interviewed in Mar 2024. There was 1 interview round.
Programming language is a set of instructions that tells a computer how to perform specific tasks.
Programming languages are used to create software, websites, and applications.
Examples of programming languages include Java, Python, C++, and JavaScript.
Each programming language has its own syntax and rules for writing code.
I applied via Campus Placement
The duration of TCS Network Engineer interview process can vary, but typically it takes about less than 2 weeks to complete.
based on 22 interviews
2 Interview rounds
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