Vedang Cellular Services RF Lead Interview Questions and Answers

Developed a web application for tracking and analyzing user behavior

• Used React.js for front-end development

• Implemented data visualization using D3.js

• Utilized Node.js and Express for back-end development

• Integrated with MongoDB for data storage

Different network layers include physical, data link, network, transport, session, presentation, and application layers.

• Physical layer: responsible for transmitting raw bits over a communication channel

• Data link layer: responsible for error-free transfer of data between nodes on a network

• Network layer: responsible for routing data packets between networks

• Transport layer: responsible for reliable data transfer between a...read more

Firewall works on multiple layers of OSI model

• Firewall operates on layers 3 (network layer) and 4 (transport layer) of the OSI model

• It can filter traffic based on IP addresses, ports, protocols, and other criteria

• Firewalls can also perform deep packet inspection to detect and block malicious traffic

• Examples of firewall software include Cisco ASA, pfSense, and Windows Firewall

Router configuration involves setting up network settings, security protocols, and routing protocols.

• Configure network settings such as IP addresses, subnet masks, and default gateway

• Implement security protocols like firewall rules and access control lists

• Set up routing protocols such as OSPF or BGP to determine the best path for data packets

• Regularly update firmware and software to ensure optimal performance