Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Computer Science > 2.1 Networking > Flashcards

2.1 Networking Flashcards

1
Q

ARPAnet

A

Advanced Research Projects Agency Network

foundation of the Internet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

WAN

A

wide area network

cover a very large geographical area

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

LAN

A

local area network

cover a small area such as a single building)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

MAN

A

metropolitan area network
larger than a LAN but smaller than a WAN
can cover several buildings in a single city such as a university campus)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

File server

A

a server on a network where central files and other data are stored
can be accessed by a user logged onto the network

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Hub

A

hardware used to connect together a number of devices to form a LAN that directs incoming data packets to all devices on the network (LAN)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Switch

A

hardware used to connect together a number of devices to form a LAN that directs incoming data packets to a specific destination address only

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Router

A

device which enables data packets to be routed between different networks
for example, joining LANs to form a WAN

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Modem

A

modulator demodulator

a device that converts digital data to analogue data (to be sent down a telephone wire), and vice versa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

WLAN

A

wireless LAN

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

(W)AP

A

(wireless) access point

allows a device to access a LAN without a wired connection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

PAN

A

network that is centered around a person or their workspace

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Client-server

A

network that uses separate dedicated servers and specific client workstations
all client computers are connected to the dedicated servers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Spread spectrum technology

A

wideband radio frequency with a range of 30 to 50 meters

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Node

A

device connected to a network

can be a computer, storage device or peripheral device

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Peer-to-peer

A

network in which each node can share its files with all the other nodes
each node has its own data
there is no central server

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Thin client

A

device that needs access to the internet for it to work and depends on a more powerful computer for processing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Thick client

A

device which can work both offline and online

is able to do some processing even if not connected to a network or internet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Bus network topology

A

network using single central cable in which all devices are connected to this cable so data can only travel in one direction
only one device is allowed to transmit at a time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Packet

A

message/data sent over a network from node to node

21
Q

Start network topology

A

a network that uses a central hub/switch with all devices connected to this central hub/switch so all data packets are directed through central hub/switch

22
Q

Mesh network topology

A

a network in which the devices are interlinked

there are two types (routing and flooding)

23
Q

Hybrid network topology

A

network made up of a combination of other network topologies

24
Q

Cloud storage

A

method of data storage where data is stored on off-site servers

25
Q

Data redundancy

A

situation in which the same data is stored on several servers in case of maintenance or repair

26
Q

Wi-Fi

A

wireless connectivity that uses radio waves and microwaves

implements IEEE 802.11 protocols

27
Q

Bluetooth

A

wireless connectivity that uses radio waves in the 2.45GHz frequency band

28
Q

Spread spectrum frequency hopping

A

a method of transmitting radio signals in which a device picks one of 79 channels at random
if the chosen channel is already in use then another channel is randomly chosen
has a range up to 100m

29
Q

WPAN

A

wireless personal area network

a local wireless network which connects devices in very close proximity

30
Q

Twisted pair cable

A

type of cable in which two wires of a single circuit are twisted together
several twisted pairs make up a single cable

31
Q

Coaxial cable

A

cable made up of central copper core, insulation, copper mesh and outer insulation

32
Q

Fibre optic cable

A

cable made up of glass fibre wires which use pulses of light (rather than electricity) to transmit data

33
Q

Gateway

A

device that connects LANs with use different protocols

34
Q

Repeater

A

device used to boost a signal on both wired and wireless networks

35
Q

Repeating hubs

A

network devices which are a hybrid of hub and repeater unit

36
Q

Bridge

A

device that connects LANs which use the same protocols

37
Q

Softmodem

A

abbreviation for software modem

a software-based modem that uses minimal hardware

38
Q

NIC

A

network interface card
allow devices to connect to a network/internet
usually associated with a MAC address set at the factory

39
Q

WNIC

A

wireless network interface cards/controllers

40
Q

Ethernet

A

protocol IEEE 802.3 used by many wires LANs

41
Q

Conflict

A

situation in which two devices have the same IP address

42
Q

Broadcast

A

communication where pieces of data are sent from sender to receiver

43
Q

Collision

A

situation in which two messages/data from different sources are trying to transmit along the same data channel

44
Q

CSMA/CD

A

carrier sense multiple access with collision detection

a method used to detect collisions and resolve the issue

45
Q

Bit streaming

A

contiguous sequence of digital bits sent over a network/internet

46
Q

Buffering

A

store which holds data temporarily

47
Q

Bit rate

A

number of bits per second that can be transmitted over the network
a measure of the data transfer rate over a digital telecoms network

48
Q

On demand (bit streaming)

A

steam that allows users to stream video or music files from a central server as and when required without having to save the files on their own device

49
Q

Real-time (bit streaming)

A

system in which an event is captured by camera (and microphone) connected to a computer and sent to a server where the data is encoded
the user can access the data ‘ as it happens’ live

Computer Science (24 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions