Tejas Networks Interview Questions, Process, and Tips

Q1. 1 ospf broadcast domain broken into 2 and back to 1, how DR and BDR election will work.
Ans. 
When an OSPF broadcast domain is broken into 2 and then back to 1, the DR and BDR election process will be triggered again.
• When the broadcast domain is split, each segment will have its own DR and BDR elected based on priority and router ID.

• When the broadcast domain is merged back into one, a new DR and BDR election will take place among all routers in the domain.

• The election process considers the priority value set on...read more
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Q2. How l2vpn, vpls, vpws work
Ans. 
L2VPN, VPLS, and VPWS are technologies used in networking to provide virtualized Layer 2 connectivity.
• L2VPN (Layer 2 Virtual Private Network) is a technology that allows for the extension of a Layer 2 network over a Layer 3 network.

• VPLS (Virtual Private LAN Service) is a type of L2VPN that connects multiple sites in a single bridged domain.

• VPWS (Virtual Private Wire Service) is a point-to-point L2VPN service that provi...read more
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It was both aptitude and coding tests combined.

Q1. Python related questions
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Q1. Basics Electronics questions
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Q2. What is conductor, capacitor, resistor..
Ans. 
Conductor, capacitor, and resistor are basic components used in electronic circuits.
• Conductor: Allows the flow of electric current. Example: Copper wire.

• Capacitor: Stores and releases electrical energy. Example: Ceramic capacitor.

• Resistor: Limits the flow of electric current. Example: Carbon film resistor.
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Q1. What is OSPF ? Why we use OSPF ? Ad Value?
Ans. 
OSPF (Open Shortest Path First) is a routing protocol used to determine the best path for data packets in a network.
• OSPF is used to efficiently route traffic in large networks by calculating the shortest path between routers.

• It is a link-state routing protocol that uses Dijkstra's algorithm to determine the best path.

• OSPF is preferred over other routing protocols like RIP due to its faster convergence time and scalabil...read more
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Q2. Everything of CCNA and CCNP. Basics
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Q1. Find a duplicate in a String OOPs concept Java 8 features
Ans. 
The question is about finding a duplicate in a string.
• Convert the string into an array of characters

• Create a HashSet to store unique characters

• Iterate through the array and check if each character is already present in the HashSet

• If a character is already present, it is a duplicate
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Q1. Java OOPs concept Comparator vs Comparable Streams Lambda Expression
Ans. 
Comparator vs Comparable, Streams, Lambda Expression
• Comparator and Comparable are interfaces used for sorting objects in Java

• Comparator is used for custom sorting logic, while Comparable is used for natural sorting order

• Streams are a sequence of elements that can be processed in parallel or sequentially

• Lambda expressions are used to write concise and functional code in Java
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Q1. System Desing of Network Management System
Ans. 
A network management system is designed to monitor and control network devices and ensure their efficient operation.
• The system should have a centralized dashboard to display real-time network status and performance metrics.

• It should support automated network discovery and device configuration management.

• The system should provide alerts and notifications for network events and failures.

• It should have the ability to gene...read more
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Q1. Background why Tejas Salary Discussion
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Q1. Good basics of telecommunication
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Q2. Optical communication
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Q3. Digital electronics
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Q4. Analog circuits
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Q1. These also basic not
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