Network Component Flashcards
(13 cards)
What are network components?
Network components are the physical and logical devices used to build, operate, and manage computer networks, enabling communication between devices.
What is a router and what does it do?
A router connects different networks together and directs data packets between them, typically routing traffic between a local network and the internet.
What is a switch and its purpose?
A switch connects multiple devices within the same local area network (LAN) and uses MAC addresses to forward data only to the intended device.
What is a hub and how does it function?
A hub is a basic network device that broadcasts incoming data to all connected devices regardless of the destination, which can lead to network collisions.
What is a modem?
A modem (modulator-demodulator) converts digital signals from a computer to analog for transmission over telephone lines and vice versa for receiving data.
What is a network interface card (NIC)?
A NIC is a hardware component that allows a computer to connect to a network, either wired (Ethernet) or wireless (Wi-Fi).
What is an access point (AP)?
An access point provides wireless connectivity to devices by acting as a bridge between wireless clients and the wired network.
What is a firewall in networking?
A firewall is a security device or software that monitors and controls incoming and outgoing network traffic based on predetermined security rules.
What is a repeater used for?
A repeater regenerates and amplifies signals in a network to extend the transmission distance of data over cables or wireless.
What is a gateway in networking?
A gateway acts as a translator between different network protocols, enabling communication between dissimilar networks, such as a LAN and the internet.
What is a bridge in networking?
A bridge connects two separate network segments and filters traffic based on MAC addresses to reduce collisions and improve traffic flow.
How does a proxy server function as a network component?
A proxy server acts as an intermediary between a client and the internet, improving security, caching content, and enforcing access policies.
