Sify Technologies Network Field Engineer Interview Questions, Process, and Tips

A modem is a device that modulates and demodulates analog signals to enable digital communication over telephone lines.

• Modem stands for modulator-demodulator

• Old company details: Hayes Microcomputer Products, US Robotics, etc.

• Modems were commonly used for dial-up internet connections

• Modems have evolved to support faster data transfer speeds like DSL and cable modems

IP version refers to the specific iteration of the Internet Protocol used for communication between devices on a network.

• IP version 4 (IPv4) is the most commonly used version, using a 32-bit address scheme.

• IP version 6 (IPv6) is the newer version, using a 128-bit address scheme to accommodate the growing number of devices connected to the internet.

• Each IP version has its own set of rules and protocols for addressing an

A router is a networking device that forwards data packets between computer networks. There are two main types of routers: wired routers and wireless routers.

• Routers are used to connect multiple networks together and route data between them

• Wired routers use physical cables to connect devices to the network

• Wireless routers use Wi-Fi to connect devices to the network

• Examples of popular router brands include Cisco, Netgea

A modem is a device that modulates and demodulates digital data for transmission over analog communication lines. There are two main types of modems: dial-up modems and broadband modems.

• Modem stands for modulator-demodulator.

• Dial-up modems use a standard telephone line to connect to the internet.

• Broadband modems, such as DSL modems and cable modems, provide high-speed internet access.

• Modems can be internal (inside a co...read more