Brainscape's Knowledge GenomeTM

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


See full index

Higher Computing (ISDD) > Technical Implementation > Flashcards

Technical Implementation Flashcards

1
Q

What is the function Interpreting User Commands responsible for?

A

The commands which the user can give using the menu driven, graphical or command driven interface.

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

Why is both software and hardware necessary for a computer system to run properly?

A

Software provides the instructions and data needed to get the hardware components to do anything useful

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

What is the difference between distributed storage and offline storage?

A

Distributed storage is used online often where as offline storage is kept offline and is harder to access than distributed storage.
Distributed storage is when more than one computer is used to store data. ‘distributed amongst computers’. Off line storage is where data is removed from and stored separately from a network so that it cannot be accessed.

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

Advantages of a distributed storage system?

A

Should anything go wrong with 1 system, the data is held on many others and so data isn’t lost. It gives more storage space and processing power than just using one computer

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

Advantages of using offline storage

A

It keeps files backed up

Very Secure as it cannot then be accessed digitally as it isn’t connected to a network

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

What is a backup?

A

A backup is a copy of a piece of data/information stored in case the first is lost or damaged

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

Why are backups important to organisations/businesses?

A

It can cost them customers - and hence money

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

Where are backups stored?

A

Separately from the network in hard drives or tapes, or get stored online using the cloud

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

When should a backup be made?

A

Whenever necessary eg daily for companies - they have lots of data or just monthly/fort nightly/weekly for individual users

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

Name the three types of backup and describe the differences between them

A

Incremental - All data changes made since the last backup of any kind are restored.
Differential - Only data that has changed since the last full backup are stored.
Full - All data on a system is copied regardless of when it was last backed up.

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

Name an advantage of each of the three backup types

A

Full - No data is missed out ever
Incremental - The fastest (but takes longest to restore)
Differential - Saves space and time from a full backup

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

What is disk mirroring?

A

When a constant copy of data is made, this ensures data is never lost. However, fails to cope with user error/virus activity

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

State the difference between CD-R’s, CD-ROM’s and CD-RW’s

A

CD-R stands for readable, the disk is blank when purchased and the user can then store information once which cannot then be deleted or amended.
CD-RW stands for rewritable. This means that the user can store, edit and redevelop information as often as they wish on the blank disk.
CD-ROM stands for read only memory - means you cannot save to the disk as it already has data stored on it and you cannot change it.

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

What is the current range of data transfer for Bluetooth devices?

A

Varies between 32-33 feet

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

What are the main difference(s) between USB 2 and 3?

A

USB 3 uses smart changing, has much higher data transfer rate and higher charging power in comparison to 2

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

How is USB different to Bluetooth?

A

USB is used for wired connections and Bluetooth is used for wireless. USB has a shorter range than Bluetooth but a faster transfer rate

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

What is data transfer speed?

A

The rate at which data is transferred from one device to another. Measured in megabits or megabytes.

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

Name factors affecting the maximum data transfer speed

A

Noise, interface, errors during transfer and overheads

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

What is the difference between the three types of backing storage devices?

A

Built in storage such as a hard drive is when the backing storage device is connected to the computer and so cannot be moved around easily - not portable
External is when the backing storage is separate from the computer such as an external hard drive
A portable storage devices such as a USB flash drive are separate from the computer and can be moved around easily

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

Three characteristics of storage devices are

A

Built in?
External?
Portable?

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

Name two backing store devices which make use of magnetic storage

A

Floppy disks and magnetic tapes

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

Name two optical storage devices

A

CD-RW

DVD-RW

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

What is the difference between the optical and magnetic storage techniques?

A

Magnetic storage uses magnetic charges stored on a magnetisable metal oxide layer on a disk or tape.
Optical storage uses the reflection of a laser from a surface made of ‘lands’ and ‘pits’

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

What is a solid state storage device?

A

One which does not contain any moving parts I.e it is solid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What are advantages of using solid state storage devices?

A

Available in a range of capacities - suits all needs and budgets
Uses less power than hard drives meaning batteries last longer in portable devices
Can be used with fingerprint scanners, passwords, or with security software
Robust, hard to break due to their lack of moving parts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

What are the current advantages of using solid state storage?

A

Surviving drops/falls
Lower power consumption - larger battery life
Access data at faster speeds than a hard disk
Ideal if you have to start up and shut down a PC on the move

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

What is the fastest type of backup?

A

Incremental but takes longest to restore the data

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

What is meant by the terms ‘networking’ and ‘connectivity’

A

Two or more computers joined together.

How they are joined together/connected.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

What would be an example of a cloud system?

A

Onedrive, Gmail

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

How are cloud systems accessed?

A

Over the Internet rather than being downloaded to a users computer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

What is a server?

A

A server is a computer that provides a service to a user. This could be providing access to files or emails or web pages

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

What are the advantages of using a client/server network?

A

Constant backups and access to files from any computer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Name and describe the three types of cloud systems.

A

Public/External - Through the Internet and open to all of those who have a dedicated Internet connection
Private/Internal - Property of an individual company who have paid for the right to use it - all data is kept internally and isn’t stored - usually on a physical server
Hybrid - A combination of Internal and external which is commonly used by companies who wish to keep data private but can still offer some for employee use

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

State a disadvantage of private clouds

A

Hardware and software must be leased by the company who have paid for the right to use it - this is expensive and may need updating.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

State an advantage of public clouds

A

Cheaper to implement, very secure and provide remote access

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

Name the advantages of cloud based services

A

Easy expansion
Remote accessibility
Security
Environmentally friendly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

Name the disadvantages of cloud based services

A

Bandwidth constraints
Security concerns
Public perception
Data protection

38
Q

Describe the provision of infrastructure provided by cloud systems. Name two examples.

A

Provision of Infrastructure - Cloud provider gives customers processing power, RAM and storage for them to run their own software on - this is a virtual computer which may be expanded in terms of both processing and storage - as it will be hosted in a server warehouse.

Amazon EC 2
Google Compute

39
Q

Describe the provision of platform service provided by cloud systems. Give two examples.

A

Providers go one step further than on infrastructure services ; complete platform with operating system and software on the virtual computer is given to companies.

Red hat open shift
Microsoft Azure

40
Q

Describe the provision of software service provided by cloud systems. Give two examples.

A

The most commonly used and is often used by home users to pay for an individual application hosted on the cloud server. Examples include;

Microsoft Office Web
Google Mail

41
Q

What are three advantages of cloud based services?

A

Remote accessibility
Easy expansion
Security
Environmentally Friendly

42
Q

What are four disadvantages of cloud based services?

A

Bandwidth Constraints
Security Concerns
Public Perception
Data Protection

43
Q

What is optical character recognition?

A

Converts a printed text page into a text file

44
Q

Which type of ROM chip cannot be erased once written to?

A

PROM

Protected property of those who created it

45
Q

What is the fastest level of cache?

A

Level 1 is faster to access than level 2 cache

46
Q

Which backing storage type is used by a Desktop?

A

Magnetic storage on hard disk drives

47
Q

State a disadvantage of solid state storage

A

It costs more per GB than using a hard disk drive

48
Q

What is always a difference between a mobile phone and a tablet?

A

Tablet screen sizes are always larger

49
Q

Name a flat screen technology

A

TFT - Most LCD screens are

50
Q

Which type of RAM is non-volatile?

A

CMOS - Contents are not deleted when the system is switched off

51
Q

Act which protects the rights of those who create software applications

A

Copyright, designs and patents Act

52
Q

Open source software

A

Allows someone to see and modify the source code

53
Q

Purpose of open source software

A

End users can view and learn from the source code

Real users suggest improvements by observation of the source code and how it works

54
Q

Portable Application Feature

A

Run within a different environment with little or no modification

55
Q

What is a cloud based resource and give an example?

A

Application and any files created using it can be accessed from any of the users devices if stored in the cloud

Eg Microsoft Office 365

56
Q

Operating System used by a mobile phone

A

ROM based

57
Q

Thin Client

A

Low specification computer used on a network where most applications run remotely on a server

58
Q

Two factors which govern how quickly data can be transferred from a hard disk drive to a computer

A

Interface Type

Access Time

59
Q

What makes a CD or DVD rewritable?

A

Entire disk contents will be erased, leaving the disk blank again, ready to be written to

60
Q

Which memory type is used in solid state storage devices?

A

Flash ROM

61
Q

What is a full backup?

A

Writing copies of all files on a system to magnetic tape at the end of every working day

62
Q

What is an incremental backup?

A

A backup of all changes made since the last backup of any kind

63
Q

What is a differential backup?

A

A backup of all of the changes made since the last full backup

64
Q

What is an internal hard drive?

A

A hard disk drive built into a computer

65
Q

How do pre-defined CDs and DVDs store digital data?

A

Creating grooves called pits which represent 1

Flat areas called lands which represent 0

66
Q

What is offline storage?

Give an example

A

Any type of storage which is not connected to a computer

Eg Tape drive, External Hard Drive and Flash Drive

67
Q

Public Cloud

A

Available to the general public

68
Q

Strength of a public cloud

A

Extremely scalable with increased capacity available immediately

69
Q

Strength of a private cloud

A

Greater Security

70
Q

Benefits of Hybrid Cloud for companies

A 
Combination of;
Scalability
Reliability
Rapid Deployment
Cost savings of public cloud storage

With;
Security
Full control of private cloud storage

71
Q

SaaS

A

Applications are hosted by a service provider and made available to customers over a network such as the internet

72
Q

PaaS

A

Users develop software applications using tools supplies by service provider via cloud computing

73
Q

IaaS

A

Organisation provides equipment used to support operations, including storage, hardware, servers and networking components

74
Q

Fast, powerful service with good security used by companies

A

Dedicated web hosting

75
Q

Main difference between web hosting and cloud hosting?

A

Cloud hosting uses more than one server

76
Q

What is a cloud based service?

A

A hardware or software resource which is made available over the Internet using a network of remote servers rather than a single dedicated server

77
Q

Hardware (Input devices)

A 
Digital Cameras
Digital Video Cameras
Scanners used to capture graphics and video
Keyboard
Touchscreen
Microphone
78
Q

Smaller Devices concern

A

Available memory

RAM likely to be limited on smart phones

79
Q

Portable software

A

Software that runs on multiple platforms

Affects number of potential users

80
Q

Portability and non-platform specific technologies

A

HTML
PHP
SQL

81
Q

Licensed software

A

Users required to purchase single or multiple licenses to legally use the information system

82
Q

Shareware

A

Limited to 30 days use before user is required to make small payment to unlock all software features

83
Q

Freeware

A

If information system is entirely free
Licensed to prevent modification
Users may only pay for data

84
Q

Proprietary software

A

Commercially produced
Supported by phone helplines and website forums
Should be error free
Limited to functions it had when purchased

85
Q

Open source software

A

Created and maintained by a community of users and programmers
Anybody can modify, improve and republish the software
Software is constantly evolving
Not in a way which suits everyone

86
Q

Open source software disadvantage

A

Prone to tampering
Virus/Trojan insertion
Source code may be edited by anyone

87
Q

Financial Advantages for companies of using cloud storage

A

Do not have to pay for IT staff to install, maintain or update applications
Do not have to pay for latest versions of software
These are updated automatically by the provider

88
Q

Other cloud services

A

Network telephone systems
Video Conferencing
Email
Virtual Servers

89
Q

Other advantages of cloud computing

A

Quickly scalable

Terms of contracts are all that needs to be changed to have immediate access to extra facilities for companies

90
Q

Cloud computing rise caused by

A

Increases in bandwidths

Cloud services expand and develop as bandwidths continue to increase

Higher Computing (ISDD) (17 decks)

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