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I applied via Referral and was interviewed before Feb 2023. There were 2 interview rounds.
TCP/IP is a set of rules governing communication between devices on a network.
TCP/IP stands for Transmission Control Protocol/Internet Protocol.
It is the foundation of the internet and most networks.
TCP ensures data delivery by establishing a connection between sender and receiver.
IP handles addressing and routing of data packets.
Examples of TCP/IP applications include web browsing, email, and file transfer.
Nokia OLT works on the principle of converting electrical signals into optical signals for high-speed data transmission.
Nokia OLT stands for Optical Line Terminal
It converts electrical signals from the service provider into optical signals for transmission over fiber optic cables
It is a key component in a fiber optic network for delivering high-speed internet services
I applied via Walk-in and was interviewed in Dec 2020. There were 3 interview rounds.
BGP is a routing protocol used to exchange routing information between different networks on the internet.
BGP stands for Border Gateway Protocol.
It is used to connect different autonomous systems (AS) on the internet.
BGP is a path-vector protocol that uses TCP as its transport protocol.
It is used to exchange routing information between routers in different ASes.
BGP is used to determine the best path for traffic to take...
ISIS Protocol is a routing protocol used in computer networks to exchange routing information between routers.
ISIS stands for Intermediate System to Intermediate System
It is a link-state protocol similar to OSPF
It uses Dijkstra's algorithm to calculate the shortest path
It is commonly used in large enterprise networks and service provider networks
It operates at the OSI layer 3 (network layer)
It supports IPv4 and IPv6
It ...
EVPN VRF MPLS is a technology used for interconnecting multiple sites in a secure and efficient manner.
EVPN (Ethernet VPN) is a technology that enables the creation of virtual private networks (VPNs) over Ethernet networks.
VRF (Virtual Routing and Forwarding) is a technology that allows multiple instances of a routing table to coexist within the same router at the same time.
MPLS (Multiprotocol Label Switching) is a pro...
Designing a messaging system like WhatsApp
Choose a reliable and scalable backend technology like Node.js
Implement end-to-end encryption for secure communication
Use push notifications for real-time messaging
Allow users to create groups and broadcast messages
Provide features like voice and video calling
Ensure data privacy and compliance with regulations
Design a user-friendly interface for easy navigation
I applied via Job Portal and was interviewed in Jan 2024. There was 1 interview round.
I applied via Naukri.com
String programming manual testing jeans
Sort a linked list
Use merge sort or quick sort for efficient sorting
Implement a sorting algorithm that works well with linked lists
Consider the time and space complexity of the sorting algorithm
I applied via Naukri.com and was interviewed before Oct 2023. There were 2 interview rounds.
Hackerrank Based coding round
Pattern matching of braces involves checking if the opening and closing braces are properly nested.
Use a stack data structure to keep track of opening braces
Iterate through the string and push opening braces onto the stack
When a closing brace is encountered, pop from the stack and check if it matches the corresponding opening brace
If stack is empty at the end and all braces are matched, the pattern is valid
I appeared for an interview in Feb 2025, where I was asked the following questions.
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