DMart Network Support Engineer Interview Questions and Answers

The OSI model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven layers.

• The OSI model stands for Open Systems Interconnection model

• It divides network communication into seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application

• Each layer has specific functions and interacts with adjacent layers

• Example: Sending an email invol...read more

Routers, switches, and firewalls are networking devices used to manage and secure network traffic.

• Router: device that forwards data packets between computer networks. Example: Cisco routers

• Switch: device that connects devices within a network and forwards data to specific devices. Example: Netgear switches

• Firewall: security device that monitors and controls incoming and outgoing network traffic based on predetermined s...read more