Untitled Flashcard Set

What is the Internet?

A global network of interconnected computers that communicate using standard protocols such as TCP/IP.

What is client-server architecture?

A network architecture in which clients request services and dedicated servers provide them.

What is peer-to-peer (P2P) architecture?

A network architecture in which each node (peer) can act as both client and server, sharing resources directly without a central server.

What is a server in client-server architecture?

A central server that handles requests from clients and returns responses, such as web or database servers.

What is a client in a network?

A device that requests and consumes services provided by a server.

What is a hub?

A basic network device that connects multiple devices and broadcasts incoming data to all ports, without filtering.

What is a repeater?

A device that regenerates and amplifies weakened signals to extend the distance a signal can travel on a network.

What is a bridge?

A device that connects two network segments and filters traffic based on MAC addresses.

What is a switch?

A device that connects devices within a LAN and forwards data only to the intended destination port using MAC addresses.

What is a router?

A device that forwards data packets between different networks using IP addresses to determine the best path.

What is a gateway?

A device or software that connects networks using different protocols or architectures, translating between them.

What is an analog signal?

A continuous signal that varies smoothly over time and can take any value within a range.

What is a digital signal?

A signal represented by discrete values, typically 0s and 1s, that is less susceptible to noise.

What is simplex transmission mode?

A transmission mode in which data flows in only one direction, from sender to receiver.

What is half-duplex transmission mode?

A transmission mode in which data flows in both directions, but not at the same time.

What is full-duplex transmission mode?

A transmission mode in which data flows in both directions simultaneously.

What is a modem?

A device that converts data from a computer into signals suitable for transmission over a communication line and back again.

What is a protocol?

A conceptual model or a set of rules that defines how data is transmitted and received across a network, such as TCP/IP.

What is a Local Area Network (LAN)?

A network that connects computers within a limited geographical area such as a building or campus.

What is a Wide Area Network (WAN)?

A network that spans a large geographical area, such as a country or the whole world.

What is a Metropolitan Area Network (MAN)?

A network that covers a city or metropolitan area, larger than a LAN but smaller than a WAN.