Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Digital Tech > Connected systems and smart devices > Flashcards

Connected systems and smart devices Flashcards

(63 cards)

Start Studying
1
Q

what is a hub?

A

A hub is a device that copies all packets of data to all devices on a network - only the devices that recognize the data will receive it.

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

what is a switch?

A

A switch analyses packets of data and sends it to the computer which it was intended to

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

what is a router?

A

Routers can be wired or wireless, they store addresses of computers on a network and transfer data between services.

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

what is a gateway?

A

A gateway is a device that connects to devices that are on different base protocols.

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

what is a bridge?

A

A bridge is a device that connects devices on a network that have the same base protocols

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

what is a wireless access point

A

a device that allows other devices that use Wi-Fi to connect to the network

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

what is a network interface card (NIC)

A

Allows devices to access a network

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

What is a protocol?

A

A protocol is a set of rules that define how devices on a network communicate

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

name all of the different protocols and standards

A

Ethernet, wi-fi, transmission control protocol (TCP), internet protocol (IP), User datagram protocol (UDP), Session initiation protocol (SIP), HTTPS, HTTPS, File transfer protocol (FTP), Simple mail transfer protocol (SMTP)

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

what is ethernet?

A

Wired cable connection using copper cables : CAT5 - CAT7, sends data directly into a device using a cable, LAN, needs a wired NIC on devices. 802.3 family.

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

what is Wi-Fi?

A

a wireless way to transmit data between devices, uses radio frequencies, connects to devices that have wifi capabilities.802.11 family, used in LAN, uses a wireless NIC card.

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

what is a transmission control protocol (TCP)

A

Establishes reliable connections before transmitting data

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

what is an IP?

A

addresses data packets across a network

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

what is a UDP?

A

A low cost way of putting datagrams together, primarily used for streaming video

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

what a SIP?

A

stateless signaling used for media streaming

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

What is HTTP?

A

allows different webpages to be shared across computers

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

What is HTTPS?

A

A more secure way to share webpages across different computers

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

What is FTP?

A

used to transfer trials between computers

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

what is SMTP?

A

Transfers mail between computers using the internet

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

what is bluetooth?

A

short range radio frequencies transferred between devices, can be up to 100m but is usually 10m , lower transfer rate than wifi

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

How is data transmitted over a network using TCP/IP?

A

Transferred using data packets or ‘datagrams’

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

what do datagrams consist of?

A

Header, payload ,trailer.

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

what is a header?

A

A header for a datagram is a section of data at the beginning of the datagram that contains control and routing information.

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

what is a payload?

A

The actual data carried in the data packet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
what is a trailer?
used for error detection and to show the end of the packet.
26
what is Routing?
the process of sending datagrams using Ip addresses
27
what is the difference between IPv4 and IPv6
IPv4 has a capacity of 32bit to hold addresses whereas IPv6 has the capacity to hold over 128bit addresses.
28
what are cellular networks?
Allow devices to communicate wirelessly using radio frequencies, microwaves and electromagnetic frequencies. Uses cell towers and fiber optic caballing.
29
give examples of some cellular networks
2G, 3G, 4G, 5G
30
give examples of the transmission of media
wired, wireless, fiber- FTTP, FTTC
31
what is wired?
Uses copper cables to transport data, CAT5 -CAT7
32
what is wireless?
transportation of data using radio waves, microwaves, infrared, and satellite
33
what is fiber?
uses fiber optic cables to transport data through light - high speed. There are two types of ways to transport fiber: FTTC and FTTP
34
What is FTTC?
fiber to the cabinet - fiber optic cables run to the cabinet then to the premises
35
what is FTTP?
fiber to the premises- fiber optic cables transport data straight to the premises
36
what does the term bandwidth mean?
refers to the capacity available for use in data transmission
37
what is LAN
local area network
38
what is WAN
wide area network
39
What is the internet of things?
Refers to physical objects or groups of objects with software, sensors and processing abilities.
40
What are the four stages in the evolution of the internet?
Connectivity, networked economy, collaborative experiences, internet of things
41
what is the connectivity phase?
Introduction of using email, browsing and searching on the internet.
42
what is the networked economy phase?
Introduction and birth of e-commerce and digitally connected supply chains, revolutionized the use of the internet to shop.
43
what is the collaborative experiences phase?
introduction of social media and cloud computing
44
what is the internet of things phase?
outlines the modern principles of connecting people, processes data, and things
45
what are the four pillars of the internet of things?
People, process data, things
46
what is the people pillar?
links to the people using and providing the services on the internet
47
what is the processes pillar?
gathering, analyzing and processing data
48
what is the data pillar?
interpreting the data given by customers so companies know what users want
49
what is the things pillar?
links to the physical objects used by people that can access the internet
50
what are the three main interactions within the internet of things?
people to people, machine to people, and machine to machine
51
what are the advantages of the internet of things?
-saves time -efficient - useful for companies - makes processes such as shopping and banking a lot easier - communication is vastly improved
52
what are the disadvantages of the internet of things?
- easy to hack - social media use linked to poor metal health - misinformation of news - overuse and addiction - criminal behavior - children may view disturbing images
53
what is a smart device?
defined as an electronic device that is connected to other devices on a network
54
give some examples of smart devices in the home
- smart fridges - Smart TV - smart doorbell - smart thermostat
55
advantages of smart devices in the home
- increased efficiency - saves money - increases security
56
disadvantages of smart devices in the home
- costly - compatibility issues - data security and hacking - could listen to conversations in the home
57
give some examples of smart devices in the built environment
traffic management, parking assistance, smart streetlights, smart crossings
58
give some examples of smart devices in manufacturing
automated robots, 3D scanning, smart glasses
59
advantages of smart devices in the work place
- less chance of human error - improvement in product quality - saves time - robots can work all day and night - don't need to pay employees and provide facilities
60
disadvantages of smart devices in the work place
- people lose jobs - high cost for smart devices - vulnerability to cyber attacks
61
what are social implications of using smart devices?
- could lead to a lack of data privacy, devices listening to people in their homes
62
what are the legal implications of using smart devices?
- breach in data privacy can be enforced by law. Legal authorities can use smart devices as evidence.
63
what environmental implications are there to using smart devices?
- require large warehouses to create these smart devices - destroying large areas of land for these warehouses - fossil fuels are burnt in the making of these smart devices require electricity - often contain plastic, can lead to pollution

Digital Tech (5 decks)

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