Chapter 1-1 and 1-2 Flashcards
(20 cards)
1
Q
Personal area network (PAN)
A
- The smallest type of network and has a limited span, interconnecting personal devices such as those that are Bluetooth connected
2
Q
Local area network (LAN)
A
- A network commonly used to interconnect and share computer resources inside a building or multiple buildings in a limited area.
2
Q
Campus area network (CAN)
A
- Often called simple is an enterprise network that spans multiple buildings in a campus environment like a university or another large organization.
3
Q
Metropolitan area network (MAN)
A
- Spans multiple buildings in a city area.
4
Q
Wide area network (WAN)
A
- Much larger than other network types, can span many areas such as cities, states, or countries.
5
Q
Protocol
A
- A set of rules established for users to exchange information
6
Q
Topology
A
- The architecture of a network
7
Q
Point to point network topology
A
- Two computers are connected directly together.
- Communication only flows between the two computers.
8
Q
Token ring network
A
- A network topology configured in a logical ring that complements the token passing protocol
9
Q
Deterministic network
A
- When access to the network is provided at fixed time intervals
10
Q
Cons of the token ring
A
- If one error changes the pattern then the token may stop circulating
- Relies on each system to relay data to the next one, so if one system fails to do so then the message cannot be passed on.
- If removing or adding a device to the token ring network, the path must be temporarily stopped so that results in downtime.
11
Q
Token ring hub
A
- A device that manages the passing of the token rather than relying on individual computers to pass it.
12
Q
Bus topology
A
- Computers share media (coaxial cable) for data transmission.
- all LAN data traffic is carried over a common coaxial cable link
- All devices can see a computers data traffic and have to wait for pauses in transmission or until its complete before they can initiate their own transmission
13
Q
Cons of bus topology
A
- If more than one computers data is placed on the network at the same time then the data is corrupted and has to be retransmitted.
- Prevents the data transmission from being very bandwidth efficient.
14
Q
Star topology (hub-and-spoke topology)
A
- Most common networking topology in today’s LANs.
- Twisted-pair cables are used to connect the computers to other networking devices.
- At the center is either a hub or switch that connects the network devices and facilitates the transfer of data.
15
Q
Multiport repeater
A
- The data the hub receives is broadcast and seen by all devices connected to its ports
16
Q
Switch
A
- Can be used at the center of the star network to minimize unnecessary data traffic and isolate sections of a network.
- Switch stores the hardware or physical address for each device to its port
- The store of the address enables the switch to directly connect two communicating devices without broadcasting the data to all devices connected to its ports
17
Q
Pros of the switch
A
- Does not broadcast data traffic
- Improves the efficiency of bandwidth
- Allows devices in the LAN to communicate with each other without tying up network resources
- During maintenance the removal of a device in this network does not negatively affect the star topology.
- The upgrade from a hub to a switch can be done without requiring a change in the cable structure and requires minimal downtime and expense
18
Q
mesh topology
A
- All networking devices are connected to each other
- Provides full fluidity in network data paths
19
Q
Cons of mesh topology
A
- Additional data paths increases the costs of cabling and network hardware
- Design adds complexity
- Can be used for high-reliability applications but is too costly for general networking applications
