TCS Network and Security Engineer L2 Interview Questions, Process, and Tips

An aptitude is a component of a competence to do a certain kind of work at a certain level. Outstanding aptitude can be considered "talent", or "skill". Aptitude is inborn potential to perform certain kinds of activities, whether physical or mental, and whether developed or undeveloped

Coding is the process of allowing humans to speak to computers. As computers only understand binary language — a series of zeros and ones — humans need to use a programming language as a translator of sorts.

Group discussion is a discussion between a group of participants on a given subject. A group discussion typically forms a part of the selection process used by organisations and educational institutions. The candidates talk about the given topic to present facts, opinions and conclusions.

An assignment is a task that someone in authority has asked you to do. The word assignment is just the noun form of the common verb assign, which you use when you want to give someone a duty or a job. When you assign something, that something is called an assignment.

Case study is an appropriate research design when you want to gain concrete, contextual, in-depth knowledge about a specific real-world subject. It allows you to explore the key characteristics, meanings, and implications of the case. Case studies are often a good choice in a

Q1. Human resources (HR) is the division of a business responsible for finding, recruiting, screening, and training job applicants.
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Q2. Finding, recruiting, screening, and training job applicants
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Q3. Human resources (HR) is the division of a business responsible for finding, recruiting, screening, and training job applicants. HR departments also handle employee compensation, benefits, and terminations.
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Q1. Examples of more advanced technical skills that a job might require include programming languages, technical writing, or data analysis. Unlike workplace skills, also called soft skills, such as communicati...read more
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Technical skills often require specific education, such as programming languages, technical writing, or data analysis.
• Programming languages: Examples include Java, Python, C++, etc.

• Technical writing: Ability to write technical documentation, manuals, and reports.

• Data analysis: Skills in analyzing and interpreting data using tools like Excel, SQL, or R.
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Q2. Programming languages, technical writing, or data analysis
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Q1. BGP and ospf and vlan
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Q2. VSS and stacking switch
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Q1. BGP in depth ospf and vlan
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Q2. Vss and switch stacking switch routing
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Q1. What do you know about routing?
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Routing is the process of selecting the best path for network traffic to reach its destination.
• Routing involves determining the optimal path for data packets to travel from the source to the destination.

• Routers use routing tables to make decisions on how to forward packets based on destination IP addresses.

• There are different types of routing protocols such as RIP, OSPF, EIGRP, and BGP.

• Static routing involves manually ...read more
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Q2. What do you know about switching?
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Switching is a networking technique used to forward data packets between devices on a computer network.
• Switching involves the process of receiving, analyzing, and forwarding data packets within a network.

• Switches operate at Layer 2 (Data Link Layer) of the OSI model.

• Switches use MAC addresses to determine the destination of data packets.

• Switches create separate collision domains and broadcast domains, improving network...read more
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Normal aptitude group discussion assignment case study

Coding test assignment one on one round

Q1. Technical vs no tech
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Technical skills are essential for a Network Engineer, but soft skills are also important for effective communication and teamwork.
• Technical skills are necessary for configuring and troubleshooting network devices.

• Soft skills like communication, teamwork, and problem-solving are crucial for working effectively with colleagues and clients.

• Balancing technical expertise with interpersonal skills is key to success in the r...read more
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Q2. Dhcp vs dns gdp vs rdp frp vs 30nd
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DHCP is a protocol used to assign IP addresses dynamically to devices on a network, while DNS is a system that translates domain names to IP addresses.
• DHCP assigns IP addresses to devices on a network dynamically

• DNS translates domain names to IP addresses

• RDP (Remote Desktop Protocol) allows users to remotely connect to a computer

• FRP (Fiberglass Reinforced Plastic) is a material used in construction

• 30nd does not seem to
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Q1. Q1. What is Protocol and full Explanation. Ans. Protocol is a set of rules which are used in digital communication to connect network device and Exchange information between them.
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Protocol is a set of rules used in digital communication to connect network devices and exchange information.
• Protocols define the format, timing, sequencing, and error checking of data transmission.

• Examples of protocols include TCP/IP, HTTP, FTP, and SMTP.

• Protocols ensure that devices can communicate effectively and understand each other's data.

• Different protocols serve different purposes, such as routing data, sending
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Q2. Q2. What is a Gateway and full Explanation. Ans. Gateway is a hardware device that is used to connect two dissimilar type of network. It allows us to send and receive data through the internet event it is ...read more
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A gateway is a hardware device that connects two dissimilar types of networks, allowing data to be sent and received through the internet even if it is a LAN network.
• Gateway acts as an entry and exit point for data traffic between networks

• It translates data between different network protocols

• Examples include routers and firewalls that connect a local network to the internet
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Q1. How many types of VLAN in Computer Networking Ans. (1) Defaults VLAN (2) Data VLAN (3) Voice VLAN (4) Management VLAN (5) Native VLAN
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There are five types of VLAN in computer networking: Default VLAN, Data VLAN, Voice VLAN, Management VLAN, and Native VLAN.
• Default VLAN is the VLAN that all switch ports are assigned to by default.

• Data VLAN is used to carry regular network traffic.

• Voice VLAN is used to carry voice traffic for VoIP systems.

• Management VLAN is used for managing network devices.

• Native VLAN is used for untagged traffic on a trunk port.
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Q2. What is VLAN Ans. Divides on Single Broadcast into Multiple to Broadcast Domains (OR) VLAN Provide a way to Group devices within a VLAN
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VLAN stands for Virtual Local Area Network. It is a network technology that allows for the creation of multiple virtual networks within a single physical network.
• VLANs divide a single broadcast domain into multiple broadcast domains.

• They provide a way to group devices within a VLAN, allowing for better network management and security.

• VLANs can be used to separate different departments or functions within an organizatio...read more
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Q1. What is stuck switching?
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Stuck switching refers to a situation where a network switch is unable to forward traffic due to a malfunction or configuration issue.
• Stuck switching can occur when a switch's forwarding table becomes corrupted or when there is a hardware failure.

• It can also happen if there is a loop in the network causing broadcast storms.

• Troubleshooting stuck switching involves checking the switch's configuration, monitoring network ...read more
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Q2. What is bgp path selection process
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BGP path selection process determines the best path for routing based on various attributes.
• BGP selects the path with the highest weight attribute first

• If weights are the same, BGP looks at the local preference attribute

• Next, BGP considers the AS path length

• BGP then checks the origin code attribute

• After that, BGP looks at the MED (Multi-Exit Discriminator) attribute

• If all else is equal, BGP chooses the path with the lo...read more
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Q3. What is stub area
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A stub area is an OSPF area that does not contain external routes.
• Stub areas reduce the amount of routing information exchanged within an OSPF network.

• Stub areas use a default route to reach external networks.

• Stub areas are commonly used to reduce the size of the OSPF database and improve network performance.
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Q4. What is stp? how to work.
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STP stands for Spanning Tree Protocol, used in network environments to prevent loops and ensure redundant paths are utilized efficiently.
• STP is a network protocol used to prevent loops in Ethernet networks.

• It works by selecting a single path for data traffic while blocking redundant paths.

• STP elects a root bridge and calculates the shortest path to each network segment.

• If a link fails, STP recalculates the network topo...read more
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Q1. General discussion
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Q1. Questions related to networking
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Q2. Routers switch configuration and commands
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Routers switch configuration and commands involve setting up and managing network devices for efficient data routing.
• Routers use commands like 'show ip route' to display routing table information

• Configuration involves setting up IP addresses, subnet masks, and default gateways

• Commands like 'show interfaces' can display interface status and configuration details
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