Brainscape's Knowledge GenomeTM

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


See full index

RD1037 > IEP and networking > Flashcards

IEP and networking Flashcards

1
Q

what is a network

A
  • two or more connected computers or devices that can exchange data
  • can be wired or wireless
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

examples of devices in diagnostic imaging

A
  • CR reader - this is essentially desktop
  • scanners - these are desktop computers
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

how are devices connected

A

wires

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

type of wired connection

A
  • ethernet
  • fibre optic - uses light/ electrical signals
  • coaxial
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what is ethernet cabling

A

makes use of twisted pair cable + RJ45 connectors
- cables shielded to reduce interference

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

what is co-axial cabling

A
  • has only two conducting elements; inner core and outer shield
  • outer kept at ground (0v)
  • inner carries the signal
  • speeds up to 10Mb/s
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what is co-axial cabling

A
  • has only two conducting elements; inner core and outer shield
  • outer kept at ground (0v)
  • inner carries the signal
  • speeds up to 10Mb/s
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what are fibre optic cables used for

A
  • used mainly for longer stretches where data transferred between sites/ servers
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

how is data sent in fibre optic cables

A
  • sent as digitized light waves - internally reflected in hallway of cable
  • cladding is mirrored so light bounces off + continues
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

which cable type is the most secure and why

A
  • fibre optic
  • transfers data via light which are harder to intercept than electrical signals
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

how does a network work

A
  • uses an IP (internet protocol) address
  • either static or dynamic
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what type of IP addresses do hospitals use

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

what are IP’s controlled by in a dynamic network

A
  • central DHCP (dynamic host protocol server
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what do routers and switches and hubs help control

A
  • control flow of data through network to ensure data goes where it should
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what does the server of a static IP address control

A
  • which device is sending information
  • which device is receiving information
  • device access to internet
  • control of data flow
  • can also act as storage devices
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what is the UK’s largest high-speed wireless network

A

LTE (long term evolution) protocol

17
Q

how to access a wired network

A
  • need to remotely access it through internet
  • can be directly connected to network
18
Q

wireless networks advantages

A
  • support devices without wired network controllers
  • great in places where security less important
19
Q

wired speeds

A

speeds up to 31Tb/s (fibre optic) or 10Gb/s (Cu wire)

20
Q

wireless speeds

A

speeds up to 280Mb/s

21
Q

compare wired and wireless connections

A

wired - security very good
wireless - open to attack by devices visiting site

wired - controllers cheap + pre-fitted by older devices
wireless - controllers more expensive but now prefitted to many devices

wired more reliable

wired - no connection available on many mobile devices
wireless - some mobile devices ONLY have wireless access

wired - less easy to add devices
wireless - easy to add devices and devices remain portable

22
Q

IEP

A

image exchange portal

23
Q

when are IEPs used

A

widely used system for secure transfer of DICOM images between hospitals and other health care providers

24
Q

how do IEP’s work

A

images can be requested or sent

25
Q

what is an IEP

A
  • run by PACS provider sectra
26
Q

IEP alternatives

A
  • mailing/ couriering CDs/DVDs
  • USB media
27
Q

IEP vs CDs

A

IEP - data cannot be misplaced
CDs - can be lost easily

IEP - when arrive automatically added to local PACS
CDs - images difficult to add to PACS

IEP - vulnerable to hacking
CDs - can be isolated from networks = secure

IEP - can only be sent to other sites in IEP community
CDs - can be sent anywhere

IEP - images can be sent very quickly in emergency
CDs - need to be physically moved

28
Q

how to convert MB to Mbits

A

multiply by 8

29
Q

what type of speed is rarely achieved on a network

A

100Mbits/s

RD1037 (8 decks)

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