Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

computing p1 GCSE > networks > Flashcards

networks Flashcards

(70 cards)

Start Studying
1
Q

what is a network?

A

devices connected together that can exchange data and share resources with each other

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

what does LAN stand for?

A

local area network

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

what is a LAN?

A

network that covers a small geographical area located on a single site

all the hardware for a LAN is located by the organisation that uses it

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

examples of LANs?

A

schools
businesses
universities

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

what does WAN stand for?

A

wide area network

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

what is a WAN?

A

a network that connects LANs from different geographical locations

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

example of a WAN?

A

a business with offices in three different countries would need a WAN

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

why use a LAN/WAN?

A

sharing files is easier

share the same hardware (printers etc)

internet connection can be shared

user accounts stored so you can log in on any device on the network

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

hardware that makes up a network?

A

switch
router
network interface controller (NIC)

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

what is a switch?

A

they connect devices on a LAN

receive data from one device and transmit this data on the same network with the correct MAC address

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

what is a router?

A

transmit data between networks

direct packets to their destination

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

what is a network interface controller? (NIC)

A

internal piece of hardware that allows a device to connect to a network

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

what is an ethernet network?

A

a wired network

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

example of ethernet cables?

A

copper cables

coaxial cables

fibre optic cables

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

what is a copper cable?

A

twisted pair of cables containing 4 pairs of copper wires

reduces internal interference

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

what is a coaxial cable?

A

single copper wire surrounded by a plastic layer and metallic mesh

provides shielding from outside interference

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

what is a fibre optic cable?

A

transmit data as light

high performance over large distances

dont suffer interference

expencive

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

what is a wireless network

A

uses radio waves to transmit data between devices

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

advantages of wireless networks?

A

more convenient as you can move around and stay connected

cheaper as fewer wires

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

wireless network topologies?

A

bluetooth

wi-fi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

what is bluetooth?

A

a direct connection between two devices so data can be shared

short range of connection

low bandwidth

often used between phones

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

what is wi-fi?

A

can be used by multiple devices to connect to a LAN at the same time

larger range of connection

high bandwidth

often used at home

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

what is a wireless access point? (WAP)

A

a switch that allows devices to connect wirelessly (for wi-fi)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

what is a client server network?

A

a network managed by a SERVER which connects to devices called CLIENTS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
what do clients do on a client server network?
request data from the server
26
what do servers do on a client server network?
process requests from clients and respond
27
what does a client server network store?
user profiles passwords access information
28
advantages of a client server network?
easy to keep track of files as they are stored centrally easy to perform backups and update software easy to manage network security
29
disadvantages of client server networks?
expensive to set up and needs maintenance by IT specialists if the server goes down all clients lose access to their work server can become overloaded if too many requests are sent at once
30
what is a peer to peer network?
they connect directly to each other without a server
31
advantages of a peer to peer network?
easy to maintain no dependance on a server if one fail the whole network isnt lost
32
disadvantages of a peer to peer network?
updates have to be done individually less reliable device slows down when another accesses ut
33
what is a topology?
the layout of a network
34
what is a star topology?
all the devices are connected to a central switch or server that controls the network
35
advantages of star topology?
if one device fails the rest are fine easy to add more devices better performance, goes straight to the central device
36
disadvantages of a star topology?
in a wired star every device needs a cable to the central device expensive for wires if theres lots of devices if the server/switch goes down, it all stops
37
what is a mesh topology?
all devices are connected without a server/switch in the centre data is sent along the fastest route
38
advantages of mesh network?
if one goes down the data gets sent along a different route
39
disadvantages of mesh topology?
its expensive, requires lots of wires
40
what is a full mesh?
all devices connect together
41
what is a partial mesh?
not all devices are fully connected
42
what is a network standard?
agreed requirements for hardware and software
43
why are network standards important?
allow manufacturers to create products and programs that will be compatible with others
44
what is a network protocol?
a set of rules for hoe devices communicate and how data is transmitted across a network
45
what is a MAC address?
they are unique, cannot be changed and assigned to every device by the manufacturer
46
what id an IP address?
used when sending data between networks assigned either manually or automatically before the device can access the network
47
what is the internet?
a network of networks, a huge WAN which connects networks from all over the world
48
what is a domain name service? (DNS)
used to translate website domain names into IP addresses
49
what is the cloud?
uses the internet to store files and applications
50
advantages of the cloud?
can access through any connected device easy to increase storage updates automatically
51
disadvantages of the cloud?
needs connection to the internet dependent on host can be vulnerable to hackers
52
what is an insider attack?
someone within the organisation exploits their network access to steal info
53
what is a brute force attack?
use of automated software to crack passwords through trial and error
54
what is a denial of service attack? (DoS)
flooding the network with useless requests making the network extremely slow or completely inaccessible
55
what is phishing?
emails, texts, calls trying to get infi
56
what is malware?
malicious software can be installed on a device without consent
57
examples of malware?
locking files deleting files spyware - monitors actions opening backdoors for future hacking
58
what are the three ways malware can access a device?
viruses worms trojans
59
what is a virus?
attach to files and users spread them by copying infected files and activate them by opening said files
60
what are worms?
they self replicate without user help meaning they spread really quickly
61
what are trojans?
malware disguised as legitimate software, users install them not realising their hidden purpose
62
what is social engineering?
a way of getting information by influencing people, typically over the phone
63
what is SQL injections?
SQL - structured query language (main coding language) pieces of SQL typed into a websites input box which reveals information SELECT, WHERE
64
types of prevention?
penetration testing encryption firewall anti malware software strong passwords
65
what is penetration testing?
when organisations purposefully hack their own networks to reveal weak areas
66
what is physical security?
protects the physical parts of a network from damage
67
examples of physical security?
locks CCTV passcode doors motion sensors
68
what is anti malware software?
designed to find and stop malware from damaging a network and the connected devices
69
example of anti malware software?
firewalls - examine all data entering and leaving the network anti virus - isolate and destroy viruses
70
what is encryption?
translating data into code where only somebody with the correct key can access it

computing p1 GCSE (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions