Chapter 8 Flashcards
Network Interface Card (NIC)
1 of 4 basic components or a network, its plugged into a slot on the motherboard inside the computer and allows a network cable to be plugged in so it can communicate with other computers
Ethernet Card
a common NIC, provide the computer with a unique 48 bit address called a MAC (media access control) address, means each computer on a network can be uniquely identified
Protocol
a standard language, must exist in order for the connected computers to communicate, its a convention or standard that controls or allows communication and data transfer between two computers, are governed by hardware and software
Ethernet Cable
specialized wires with adapters that plug into the NIC,
Twisted Pair
most common type of cable wire, which is a specialized wire that cancels out electromagnetic interference from other electronic devices and increase reliability
Network Hub
most common type is ethernet hub, its a central location of the computer network that serves as a traffic cop for network connection and communication, ensure that computer traffic collisions are eliminated
Transmission Control Protocol/ Internet Protocol (TCP/IP)
most common network protocol, TCP/IP checks to see the receiving computer accepts all of the packets that make up the spreadsheet and that the packets are in the correct order, guarantees reliability of the computer file received by the networks end user
Packets
are broken down files that are smaller more manageable pieces sent to the receiving computer on the computer and then reassembled in the correct order
User Datagram Protocol (UDP)
send the entire file at once in a streaming fashion, it is much faster than TCP/IP does not guarantee a files reliability
Operating System (OS)
software that administers the hardware and software of a computer allowing it to work properly , called a platform performs important jobs like controlling memory, input/output devices, and managing computer files
Network Operating System (NOS)
software that controls an entire network, responsible for network traffic control, administering packets, file management, administering certain function like backup, and security. when a new device is attached it recognizes it and installs it as part of the network
Topology
the mapping of a physical network and logical interconnections between nodes
Node
any device that is connected as part of a computer network, including computers, hubs, printers, and switches
Bus Topology
or linear bus is a network topology where each of a networks nodes is connected to a common linear backbone that has two endpoints
-laid out in a straight line but not always straight
-only use one cable or a couple
Advantage of Bus Topology
- only involves cables and a server
- cheap
- easy to setup
Disadvantage of Bus Topology
- slower because you have to wait for all the other ones to transmit
- if cable breaks the whole network goes down
- large businesses do not use this
Star Topology
star shape created by nodes that radiate around a central node, theres only one central device
Advantage of Star Topology
- easy to add on to connect because you only have to connect to one device
- easy to identify where the problem is because they all connect to the same thing
- fast performance
Disadvantage of Star Topology
- expensive
- lots of cables
- if hub goes out the entire network will go out
Ring Topology
shaped like a ring, data goes in a circular manner, each computer node is connected to two other computers in the network with the first and last computers being connected to each other
Advantage of Ring Topology
- organized
-doesn’t really need a server
Disadvantage of Ring Topology
-Will struggle to identify if there is a problem because it is connected to multiple devices
-Theres one cable if it goes out everything goes out
Mesh Topology
interconnected used for wireless
Advantage of Mesh Topology
- Manages on high amount of traffic
- If one cable goes down it doesn’t matter we can fix that one
