Network layout Flashcards
What is a Client?
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defines a device an end users uses to access a network.
A computer
What is a Bridge?
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Connects two networks segments together and is a selective repeater it examines the mac address of the traffic.
a box with a U on top
What is a Sever?
It serves up resources to a network.
What is a Hub?
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that interconnect network components such as clients and servers. It is a layer 1 device.
Is a square with 1 arrow
What is a Switch?
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Is a controller enabling networked devices to talk to each other efficiently. This is done by MAC address. Which is a layer 2 device. [is a square with to arrows]
What is a Router?
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is a layer 3 device that forwards decision based on logical network addresses. [ a circle with arrow towards and away from each other
What is a LAN?
Local Area Network. Interconnects network components within a local area.
What is a WAN?
Wide Area Network. Interconnects networks components that are geographically separated.
What is a CAN?
Campus Area Network. Are when multiple LAN on a campus or business park
What is a MAN?
Metropolitan Area Network. Interconnected locations scattered throughout a metropolitan area.
What is a PAN?
Personal Area Network. whose scale is even smaller than a LAN. usually connected between a PC.
What is Logical topology?
The actual flow of network track?
What is Physical topology?
The physically interconnected components of a network.
What is Point to Point?
The simplest it only connects 2 end points.
What is a Bus topology?
Each machine is connected to a single cable. A signal is sent to all connect devices until it fined the correct MAC address.
What is a Star topology?
Each network host is connected to a central hub with a point to point connections. The hub acts as a single booster or repeater. Information can not be shared with a single computer in the topology.
What is a Ring topology?
that is set up in a circular fashion which data travels around the ring in one direction and each device on the ring acts as a repeater to keep the signal strong.
How many layers are in the OSI model.
7
What are the layers of the OSI model
physical data link network transport session presentation Application
What is the Layer 1 and its meaning?
What is its PDU?
Physical
Is responsible for the transmission and reception of instructed raw data between devices.
This is the physical devices. Such as Ethernet, Bluetooth, USB, Hub
PDU is Bits.
What is PDU
protocol data unit. the unit for a layer in the OSI model
Some People Fear Birthdays. Segments Packets Frame Bits
What are the 2 types of Synchronizing bits?
Asynchronous - Only one sender at a time normally based on a own internal clock.
Synchronous - Synchronizes the internal clock of both the sender and the receiver that they agree on when bits begin and end.
What are the 2 types of Bandwidth usage?
Broadband - divide the bandwidth available on a medium into different channels.
Baseband - uses all the available frequencies on a medium to transmit data. Ex. Ethernet.
What is multiplexing.
allows multiple communications sessions to share the same physical medium.