Defined by mutliple organisations

What is an embedded system?

a computer embedded into another device

A relational database

includes one or more tables of data linked by keys

Which of the following describes Open Source software?

Source code that can be changed, free

What is multitasking?

The OS running more than one program at the same time in RAM

What is sampling rate

how often a measure of sound is taken (volume, frequency)

evolved from what works well and agreed by an organisation

shares internet connection via router among many computers

search for data based on a condition being met

output /printout of the data in the database

a collection of related fields about one object

Which of the following describes custom written software

Produced specifically for a company or person, expensive

Which of the following describes off the shelf software

Buy from a shop or pay to download, cheaper cost

collection of computers connected together sharing resources

De-fragmentation involves

Move parts of files together into 1 location,

Health and Safety at Work Act

Makes employers responsible for the safety of their staff

allows communication between LAN and internet

An advantage of a CLI is...

run very quickly when handled by an expert user

Which of the following is an example of software?

Operating System, Spreadsheet Software

Contains one piece of information about a record

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OCR GCSE Computing A451

100 termsStudBud Administration544 plays

Flashcards100 cardsFPractice quizPHost liveL

Questions 100

Answers

1
One sequence of instructions are executed based on a condition being met
Declaration
Selection
Iteration
Sequence
2
Industry standards
Applied by a particular company
Apply to the general public
evolved from what works well and agreed by an organisation
Defined by mutliple organisations
3
A model where one computer holds all the files which can be requested
peer to peer
client-server
4
A policy detailing how to keep the network running if a device stops working correctly
archive
backup
failover
disaster recovery
5
An input of 0 makes an output of 1. Which operator represents this?
XOR
OR
NOT
AND
6
Which is the biggest unit of data
Bit
Nibble
Byte
Kilobyte
7
What is an embedded system?
a computer embedded into a CPU
a computer embedded into software
a computer embedded into another device
a computer embedded into an operating system
8
A relational database
holds lots of data
is a flat file data structure
includes one table of data
includes one or more tables of data linked by keys
9
Which of the following describes Open Source software?
Buy from a shop or pay to download, cheaper cost
Produced specifically for a company or person, expensive
Source code that can be changed, free
10
What is multitasking?
A task men are supposedly bad at..
Saving several files onto a HDD
The OS running more than one program at the same time in RAM
Installing several peripherals at one time
11
The truth table containing 3 FALSE results. Which operator represents this?
AND
NOT
XOR
OR
12
What is sampling rate
the storage requirements for a sound
How many bits are used for each sample e.g. bps
The quality of a sound
how often a measure of sound is taken (volume, frequency)
13
De facto standards
evolved from what works well and agreed by an organisation
Defined by mutliple organisations
Applied by a particular company
Apply to the general public
14
A series of instructions to be executed once in the order given
Declaration
Sequence
Selection
Iteration
15
A hub...
shares internet connection via router among many computers
hardware to receive a wireless signal or Ethernet cable
allows communication between LAN and internet
shares internet connection while learning computer locations
16
Which name is given to the base of a disk organisation hierarchical structure?
Sub Directory
Root Directory
File
Directory
17
What is a query?
a field that uniquely identifies a record
field used to link together 2 tables
structure used to store records of data for an object
search for data based on a condition being met
18
What is a report?
a field that uniquely identifies a record
structure used to store records of data for an object
output /printout of the data in the database
search for data based on a condition being met
19
What is a record?
A real world object stored as a table in a database
a collection of related fields about one object
Contains one piece of information about a record
A persistent, organised collection of related data
20
Which of these is NOT a feature of a GUI
Pointers
Icons
Mouse
Windows
21
Which of the following describes custom written software
Source code that can be changed, free
Produced specifically for a company or person, expensive
Buy from a shop or pay to download, cheaper cost
Microsoft Office
22
A policy helping to prevent the permanent loss of data
failover
disaster recovery
archive
backup
23
Memory that is used when the volatile memory of the computer is not large enough
Cache Memory
ROM - Read Only Memory
RAM - Random Access Memory
Virtual Memory
24
Computer misuse act
Makes hacking illegal
Ensures data is kept secure
Makes employers responsible for the safety of their staff
Makes it illegal to copy a publication without permission
25
What does the hexidecimal digit A represent in denary
9
1010
1011
10
26
Which of the following describes off the shelf software
Buy from a shop or pay to download, cheaper cost
Produced specifically for a company or person, expensive
Source code that can be changed, free
27
Which file type is most suitable for an instruction manual on operating a piece of software?
PDF
MPEG
GIF
MP3
28
A network is...
a web of computers
collection of computers connected together sharing resources
several computers joined together
one or more computers
29
Which of the following is as output device?
Mouse
Speaker
Printer
Keyboard
30
the process of turning readable data into nonsense for security purposes
decoding
encryption
coding
decryption
31
Which file type is most suitable for an animated logo on a web page?
MP3
JPG
GIF
MPEG
32
De-fragmentation involves
Split up files into different locations
Move parts of files together into 1 location,
Clean up the HDD
increasing disk access time
33
Which of these is application software?
utility software
user interface
spreadsheet software
firewall
34
Which file type is most suitable for a music track?
GIF
MP3
MPEG
PDF
35
A network topology where all devices are connected via a single central device e.g hub / switch
mesh
star
bus
ring
36
Using the binary (base 2 ) system which number would NOT appear as a column weighting?
4
8
64
12
37
IP stands for
Internet procedure
Information Packet
Internet protocol
Information Protocol
38
Memory that can be accessed very quickly and used to store regularly used instructions
Cache Memory
ROM - Read Only Memory
Virtual Memory
RAM - Random Access Memory
39
Which logic gate is shown below?
NOT
AND
OR
XOR
40
Which term describes a sequence of 8 bits
Byte
Nibble
Bit
Kilobyte
41
Health and Safety at Work Act
Ensures data is kept secure
Makes hacking illegal
Makes employers responsible for the safety of their staff
Makes it illegal to copy a publication without permission
42
Method of defining simple algorithms visually
Pseudocode
Data Flow Diagram
Flowchart
Structured English
43
An advantage of a GUI is...
Slower processing times
high ram requirements
run very quickly when handled by an expert user
Intuitive / instinctive to use
44
Portable non-volatile memory such as a USB or SD card
Flash Memory
Virtual Memory
ROM - Read Only Memory
Cache Memory
45
A router...
shares internet connection while learning computer locations
shares internet connection via router among many computers
hardware to receive a wireless signal or Ethernet cable
allows communication between LAN and internet
46
An advantage of a CLI is...
Slower processing times
run very quickly when handled by an expert user
Intuitive / instinctive to use
high ram requirements
47
Which file type is most suitable for a video?
MPEG
MP3
PDF
GIF
48
A network topology where each device is connected to two other devices, signal is passed around
star
mesh
ring
bus
49
What is the job of the ALU?
Carry out calculations
Retrieving data and instructions
Calculate operation per second
To measure clock speed
50
Which of the following is an example of software?
Keyboard
Operating System
Spreadsheet Software
Monitor
51
What is a field?
Contains one piece of information about a record
A real world object stored as a table in a database
a collection of related fields about one object
A persistent, organised collection of related data
52
Which of the following defines a CLI?
Computer Large Icon
Command Line Interface
Command Line Icon
Computer Line Interface
53
DPA
Makes hacking illegal
Makes it illegal to copy a publication without permission
Ensures data is kept secure
Makes employers responsible for the safety of their staff
54
long term storage for data that is not needed on a day to day basis
backup
failover
archive
disaster recovery
55
Data being sent across a network is split into
chunks
bytes
packets
bits
56
What is an entity?
A real world object stored as a table in a database
Contains one piece of information about a record
a collection of related fields about one object
A persistent, organised collection of related data
57
A DBMS is
an output report of data results
software to create, maintain and update a database
an input screen for data
a database memory store
58
What are professional standards?
Rules to be followed when developing systems
Rules that programmers have to follow
Rules for which software can be used
Rules for which hardware can be used
59
Which term describes a sequence of 4 bits?
Bit
Nibble
Byte
Kilobyte
60
A network interface card...
shares internet connection while learning computer locations
hardware to receive a wireless signal or Ethernet cable
shares internet connection via router among many computers
allows communication between LAN and internet
61
Step by step instructions that explain how a problem is solved
Function
Subroutine
Procedure
Algorithm
62
Copyright, Designs and Patent Act
Makes hacking illegal
Ensures data is kept secure
Makes employers responsible for the safety of their staff
Makes it illegal to copy a publication without permission
63
What is bitrate
how often a measure of sound is taken (volume, frequency)
How many bits are used for each sample e.g. bps
The quality of a sound
the storage requirements for a sound
64
Which is the smallest unit of data
Kilobyte
Byte
Bit
Nibble
65
Which logic gate is shown below?
NOT
XOR
AND
OR
66
The truth table containing 3 TRUE results. Which operator represents this?
AND
XOR
OR
NOT
67
A switch...
shares internet connection while learning computer locations
allows communication between LAN and internet
shares internet connection via router among many computers
hardware to receive a wireless signal or Ethernet cable
68
Which would you NOT expected to see within a flow chart?
Input
Decision
Diamond
Process
69
Which of these is NOT secondary storage
Optical Disks - Blu-ray, DVD, CD
RAM
Internal HDD
USB Flash Drive
70
Which of the following is NOT a protocol
HTML
SMTP
FTP
HTTP
71
Which of the following network passwords would be considered strongest
stargazer17
stargazer
staRgazeR17
staR$gazeR17
72
Convert 129 to binary
11111110
10000001
10000010
11111111
73
All computers in this model can store files / transmit files but security can be an issue
peer to peer
client-server
74
What is validation?
checking data is reasonable and sensible
checking data has no mistakes
double keying and proof reading
checking data is correct
75
Non-volatile memory that cannot be edited or deleted such as bootstrap information
ROM - Read Only Memory
Virtual Memory
Cache Memory
RAM - Random Access Memory
76
A policy describing the action to be taken in the event of say a fire
archive
backup
disaster recovery
failover
77
Volatile computer memory storing the data and instructions of a running program
RAM - Random Access Memory
Cache Memory
ROM - Read Only Memory
Virtual Memory
78
What is hardware?
Application Software
Physical components of a computing system
CPU
Operating system
79
Proprietary standards...
Apply to the general public
evolved from what works well and agreed by an organisation
Defined by mutliple organisations
Applied by a particular company
80
A network topology where all devices connect via a backbone
star
mesh
bus
ring
81
Data in computers is represented as
Assembly Code
Natural Language
Binary
Denary
82
Which of the following influences clock speed?
The size of the CPU
The speed of other components
The size of cache
The number of cores
83
Which is an appropriate check for an age in number of years field
type check
length check
range check
format check
84
What is a database?
A real world object stored as a table in a database
a collection of related fields about one object
A persistent, organised collection of related data
Contains one piece of information about a record
85
Advantage of a bus network
faults are easy to find
easy to add/remove computers
very cheap requires minimal cabling
no collisions
86
Add together 00000101 and 10000011
10001001
10001101
10001110
10001000
87
A world wide network of millions of computers and related hardware
WAN
Ethernet
Extranet
Internet
88
What does the hexidecimal digit 2A represent in denary
40
41
39
42
89
What is a foreign key?
Contains one piece of information about a record
A persistent, organised collection of related data
a field that uniquely identifies a record
field used to link together 2 tables
90
Advantage of a star network
very cheap requires minimal cabling
faults are easy to find
no collisions
easy to add/remove computers
91
What is a table?
field used to link together 2 tables
Contains one piece of information about a record
structure used to store records of data for an object
a field that uniquely identifies a record
92
Convert 00010010 to denary
18
16
24
12
93
Which is the largest data unit?
Kilobyte
Byte
Mega Byte
Bit
94
Disadvantage of a ring network
network traffic can cause significantly slow down access
Most expensive due to amount of cable required
security is not ensured
Failure of a single cable can bring down whole network
95
Convert 51 to binary
00110011
00101111
11111111
0001111
96
Which is an appropriate check for a postcode
length check
format check
type check
range check
97
What is the job of the Control Unit?
Carry out calculations
Retrieving data and instructions
To measure clock speed
Calculate operation per second
98
Open standards are...
evolved from what works well and agreed by an organisation
Defined by mutliple organisations
Apply to the general public
Applied by a particular company
99
Which logic gate is shown below?
XOR
AND
NOT
OR
100
If ASCII character A = 01000001, what would C be?
01000011
01000001
01000100
01000010

OCR GCSE Computing A451 Flashcards | StudBud

OCR GCSE Computing A451

100 termsStudBud Administration544 plays

OCR GCSE Computing A451

Flashcards100 cardsFPractice quizPHost liveL

Questions 100

Answers

1
One sequence of instructions are executed based on a condition being met
Declaration
Selection
Iteration
Sequence
2
Industry standards
Applied by a particular company
Apply to the general public
evolved from what works well and agreed by an organisation
Defined by mutliple organisations
3
A model where one computer holds all the files which can be requested
peer to peer
client-server
4
A policy detailing how to keep the network running if a device stops working correctly
archive
backup
failover
disaster recovery
5
An input of 0 makes an output of 1. Which operator represents this?
XOR
OR
NOT
AND
6
Which is the biggest unit of data
Bit
Nibble
Byte
Kilobyte
7
What is an embedded system?
a computer embedded into a CPU
a computer embedded into software
a computer embedded into another device
a computer embedded into an operating system
8
A relational database
holds lots of data
is a flat file data structure
includes one table of data
includes one or more tables of data linked by keys
9
Which of the following describes Open Source software?
Buy from a shop or pay to download, cheaper cost
Produced specifically for a company or person, expensive
Source code that can be changed, free
10
What is multitasking?
A task men are supposedly bad at..
Saving several files onto a HDD
The OS running more than one program at the same time in RAM
Installing several peripherals at one time
11
The truth table containing 3 FALSE results. Which operator represents this?
AND
NOT
XOR
OR
12
What is sampling rate
the storage requirements for a sound
How many bits are used for each sample e.g. bps
The quality of a sound
how often a measure of sound is taken (volume, frequency)
13
De facto standards
evolved from what works well and agreed by an organisation
Defined by mutliple organisations
Applied by a particular company
Apply to the general public
14
A series of instructions to be executed once in the order given
Declaration
Sequence
Selection
Iteration
15
A hub...
shares internet connection via router among many computers
hardware to receive a wireless signal or Ethernet cable
allows communication between LAN and internet
shares internet connection while learning computer locations
16
Which name is given to the base of a disk organisation hierarchical structure?
Sub Directory
Root Directory
File
Directory
17
What is a query?
a field that uniquely identifies a record
field used to link together 2 tables
structure used to store records of data for an object
search for data based on a condition being met
18
What is a report?
a field that uniquely identifies a record
structure used to store records of data for an object
output /printout of the data in the database
search for data based on a condition being met
19
What is a record?
A real world object stored as a table in a database
a collection of related fields about one object
Contains one piece of information about a record
A persistent, organised collection of related data
20
Which of these is NOT a feature of a GUI
Pointers
Icons
Mouse
Windows
21
Which of the following describes custom written software
Source code that can be changed, free
Produced specifically for a company or person, expensive
Buy from a shop or pay to download, cheaper cost
Microsoft Office
22
A policy helping to prevent the permanent loss of data
failover
disaster recovery
archive
backup
23
Memory that is used when the volatile memory of the computer is not large enough
Cache Memory
ROM - Read Only Memory
RAM - Random Access Memory
Virtual Memory
24
Computer misuse act
Makes hacking illegal
Ensures data is kept secure
Makes employers responsible for the safety of their staff
Makes it illegal to copy a publication without permission
25
What does the hexidecimal digit A represent in denary
9
1010
1011
10
26
Which of the following describes off the shelf software
Buy from a shop or pay to download, cheaper cost
Produced specifically for a company or person, expensive
Source code that can be changed, free
27
Which file type is most suitable for an instruction manual on operating a piece of software?
PDF
MPEG
GIF
MP3
28
A network is...
a web of computers
collection of computers connected together sharing resources
several computers joined together
one or more computers
29
Which of the following is as output device?
Mouse
Speaker
Printer
Keyboard
30
the process of turning readable data into nonsense for security purposes
decoding
encryption
coding
decryption
31
Which file type is most suitable for an animated logo on a web page?
MP3
JPG
GIF
MPEG
32
De-fragmentation involves
Split up files into different locations
Move parts of files together into 1 location,
Clean up the HDD
increasing disk access time
33
Which of these is application software?
utility software
user interface
spreadsheet software
firewall
34
Which file type is most suitable for a music track?
GIF
MP3
MPEG
PDF
35
A network topology where all devices are connected via a single central device e.g hub / switch
mesh
star
bus
ring
36
Using the binary (base 2 ) system which number would NOT appear as a column weighting?
4
8
64
12
37
IP stands for
Internet procedure
Information Packet
Internet protocol
Information Protocol
38
Memory that can be accessed very quickly and used to store regularly used instructions
Cache Memory
ROM - Read Only Memory
Virtual Memory
RAM - Random Access Memory
39
Which logic gate is shown below?
NOT
AND
OR
XOR
40
Which term describes a sequence of 8 bits
Byte
Nibble
Bit
Kilobyte
41
Health and Safety at Work Act
Ensures data is kept secure
Makes hacking illegal
Makes employers responsible for the safety of their staff
Makes it illegal to copy a publication without permission
42
Method of defining simple algorithms visually
Pseudocode
Data Flow Diagram
Flowchart
Structured English
43
An advantage of a GUI is...
Slower processing times
high ram requirements
run very quickly when handled by an expert user
Intuitive / instinctive to use
44
Portable non-volatile memory such as a USB or SD card
Flash Memory
Virtual Memory
ROM - Read Only Memory
Cache Memory
45
A router...
shares internet connection while learning computer locations
shares internet connection via router among many computers
hardware to receive a wireless signal or Ethernet cable
allows communication between LAN and internet
46
An advantage of a CLI is...
Slower processing times
run very quickly when handled by an expert user
Intuitive / instinctive to use
high ram requirements
47
Which file type is most suitable for a video?
MPEG
MP3
PDF
GIF
48
A network topology where each device is connected to two other devices, signal is passed around
star
mesh
ring
bus
49
What is the job of the ALU?
Carry out calculations
Retrieving data and instructions
Calculate operation per second
To measure clock speed
50
Which of the following is an example of software?
Keyboard
Operating System
Spreadsheet Software
Monitor
51
What is a field?
Contains one piece of information about a record
A real world object stored as a table in a database
a collection of related fields about one object
A persistent, organised collection of related data
52
Which of the following defines a CLI?
Computer Large Icon
Command Line Interface
Command Line Icon
Computer Line Interface
53
DPA
Makes hacking illegal
Makes it illegal to copy a publication without permission
Ensures data is kept secure
Makes employers responsible for the safety of their staff
54
long term storage for data that is not needed on a day to day basis
backup
failover
archive
disaster recovery
55
Data being sent across a network is split into
chunks
bytes
packets
bits
56
What is an entity?
A real world object stored as a table in a database
Contains one piece of information about a record
a collection of related fields about one object
A persistent, organised collection of related data
57
A DBMS is
an output report of data results
software to create, maintain and update a database
an input screen for data
a database memory store
58
What are professional standards?
Rules to be followed when developing systems
Rules that programmers have to follow
Rules for which software can be used
Rules for which hardware can be used
59
Which term describes a sequence of 4 bits?
Bit
Nibble
Byte
Kilobyte
60
A network interface card...
shares internet connection while learning computer locations
hardware to receive a wireless signal or Ethernet cable
shares internet connection via router among many computers
allows communication between LAN and internet
61
Step by step instructions that explain how a problem is solved
Function
Subroutine
Procedure
Algorithm
62
Copyright, Designs and Patent Act
Makes hacking illegal
Ensures data is kept secure
Makes employers responsible for the safety of their staff
Makes it illegal to copy a publication without permission
63
What is bitrate
how often a measure of sound is taken (volume, frequency)
How many bits are used for each sample e.g. bps
The quality of a sound
the storage requirements for a sound
64
Which is the smallest unit of data
Kilobyte
Byte
Bit
Nibble
65
Which logic gate is shown below?
NOT
XOR
AND
OR
66
The truth table containing 3 TRUE results. Which operator represents this?
AND
XOR
OR
NOT
67
A switch...
shares internet connection while learning computer locations
allows communication between LAN and internet
shares internet connection via router among many computers
hardware to receive a wireless signal or Ethernet cable
68
Which would you NOT expected to see within a flow chart?
Input
Decision
Diamond
Process
69
Which of these is NOT secondary storage
Optical Disks - Blu-ray, DVD, CD
RAM
Internal HDD
USB Flash Drive
70
Which of the following is NOT a protocol
HTML
SMTP
FTP
HTTP
71
Which of the following network passwords would be considered strongest
stargazer17
stargazer
staRgazeR17
staR$gazeR17
72
Convert 129 to binary
11111110
10000001
10000010
11111111
73
All computers in this model can store files / transmit files but security can be an issue
peer to peer
client-server
74
What is validation?
checking data is reasonable and sensible
checking data has no mistakes
double keying and proof reading
checking data is correct
75
Non-volatile memory that cannot be edited or deleted such as bootstrap information
ROM - Read Only Memory
Virtual Memory
Cache Memory
RAM - Random Access Memory
76
A policy describing the action to be taken in the event of say a fire
archive
backup
disaster recovery
failover
77
Volatile computer memory storing the data and instructions of a running program
RAM - Random Access Memory
Cache Memory
ROM - Read Only Memory
Virtual Memory
78
What is hardware?
Application Software
Physical components of a computing system
CPU
Operating system
79
Proprietary standards...
Apply to the general public
evolved from what works well and agreed by an organisation
Defined by mutliple organisations
Applied by a particular company
80
A network topology where all devices connect via a backbone
star
mesh
bus
ring
81
Data in computers is represented as
Assembly Code
Natural Language
Binary
Denary
82
Which of the following influences clock speed?
The size of the CPU
The speed of other components
The size of cache
The number of cores
83
Which is an appropriate check for an age in number of years field
type check
length check
range check
format check
84
What is a database?
A real world object stored as a table in a database
a collection of related fields about one object
A persistent, organised collection of related data
Contains one piece of information about a record
85
Advantage of a bus network
faults are easy to find
easy to add/remove computers
very cheap requires minimal cabling
no collisions
86
Add together 00000101 and 10000011
10001001
10001101
10001110
10001000
87
A world wide network of millions of computers and related hardware
WAN
Ethernet
Extranet
Internet
88
What does the hexidecimal digit 2A represent in denary
40
41
39
42
89
What is a foreign key?
Contains one piece of information about a record
A persistent, organised collection of related data
a field that uniquely identifies a record
field used to link together 2 tables
90
Advantage of a star network
very cheap requires minimal cabling
faults are easy to find
no collisions
easy to add/remove computers
91
What is a table?
field used to link together 2 tables
Contains one piece of information about a record
structure used to store records of data for an object
a field that uniquely identifies a record
92
Convert 00010010 to denary
18
16
24
12
93
Which is the largest data unit?
Kilobyte
Byte
Mega Byte
Bit
94
Disadvantage of a ring network
network traffic can cause significantly slow down access
Most expensive due to amount of cable required
security is not ensured
Failure of a single cable can bring down whole network
95
Convert 51 to binary
00110011
00101111
11111111
0001111
96
Which is an appropriate check for a postcode
length check
format check
type check
range check
97
What is the job of the Control Unit?
Carry out calculations
Retrieving data and instructions
To measure clock speed
Calculate operation per second
98
Open standards are...
evolved from what works well and agreed by an organisation
Defined by mutliple organisations
Apply to the general public
Applied by a particular company
99
Which logic gate is shown below?
XOR
AND
NOT
OR
100
If ASCII character A = 01000001, what would C be?
01000011
01000001
01000100
01000010