Flashcards in chapter 5 Deck (17):
a hub is the most basic networking device that connects multiple computers or other network devices together. Unlike a network switch or router, a network hub has no routing tables or intelligence on where to send information and broadcasts all network data across each connection.
Network Interface Card, the NIC is also referred to as an Ethernet card and network adapter. It is an expansion card that enables a computer to connect to a network; such as a home network, or the Internet using an Ethernet cable with an RJ-45 connector.
NIC has 2 LED's to help in diagnosing any functional problem, what are they?
1- the Link LED
2- the Activity LED
a bridge is a device that connects two similar network segments (of the same LAN) together.
what would be the reasons of placing a bridge in the network?
- to connect 2 segments together.
- to divide a busy network in to segments.
is a computer networking device that connects devices together on a computer network, by using packet switching to receive, process and forward data to the destination device.
A router is a device that forwards data packets along networks. A router is connected to at least two networks, commonly two LANs or WANs or a LAN and its ISP's network. Routers are located at gateways, the places where two or more networks connect.
routers can have different names, what are they?
layer 3 switch, multilayer switch.
_____ is a software utility or hardware device that limits outside network access to a computer or local network by blocking or restricting network ports. They are a great step for helping prevent un-authorized access to a company or home network.
DMZ is short for DeMilitarized Zone and acts as a buffer area between outside users (the internet) and a private (local or wide area network) server. DMZs are typically used by corporations and contain a device that accepts internet traffic such as DNS, FTP and Web servers.
Dynamic Host Configuration Protocol is a protocol used to assign an IP address to a computer or device that has been connected to a network automatically. Routers, switches, or servers that use DHCP to assign addresses to other computers can make setup and management easier for the network administrator.
A multilayer switch (MLS) is a computer networking device that switches on OSI layer 2 like an ordinary network switch and provides extra functions on higher OSI layers.
A load balancer is a device that acts as a reverse proxy and distributes network or application traffic across a number of servers.
Domain Name Services server.
A DNS server is a server software program that performs Domain Name Services (DNS). This involves taking a full host name or a domain name and returning it to the corresponding Internet Protocol (IP) address.
there are 2 main types of proxy servers. what are they?
1- caching proxy server
2- web proxy server
A cache server.
A caching proxy server is a dedicated network server or service acting as a server that saves Web pages or other Internet content locally. By placing previously requested information in temporary storage, or cache, a cache server speeds up access to data.