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Duplicate of The Big Fat Computer Science Quiz of the Year Flashcards | StudBud
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Duplicate of The Big Fat Computer Science Quiz of the Year
Duplicate of The Big Fat Computer Science Quiz of the Year
110 terms
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StudBud Administration
A #Computing quiz covering all topics on OCR
Flashcards
110 cards
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Practice quiz
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Questions
110
Answers
1
Which of these statements is true about open standards?
The file specification is often closed rather than open
Controlled by creative commons licence or are unlicensed
Controlled by a licence agreement, owned by an organisation
2
How can a company stop rivals from stealing their ideas and producing similar games?
Prosecute people that buy the game that their rivals produce
They can pay their rivals not to release their game
They can patent the idea for the game
They can make games for the Nintendo Switch...
3
What does 'volatile' mean for a computer's memory?
Data is lost when the computer is switched off
Data and instructions may cause the computer to crash
Data remains stored even when the computer is switched off
4
What is the name of the law represented by this chart?
Turing's Law
Janet's Law
Moore's Law
The Colossus Law
5
Which of the following is a tool to store, edit and organise data in a database?
A database
A database management system (DBMS)
SQL
6
Which of these is a pointing device?
Trackball
Keyboard
Scanner
Printer
7
Which of these would be the OUTPUT for a microwave?
The microwave switches to the allocated mode
User presses buttons to select the power level and time
The contents is heated for duration set
The microwave beeps and the user has heated food
8
What is the equivalent denary number of the binary number 01001011?
75
74
43
44
9
What is data integrity?
Relates to how accurate and consistent data is
How effective the interface of the database is
Relates to how large the database is
10
Which of these is a job for the ALU?
Controlling data moving through the processors
Keeping track of the running order of instructions
Carrying out calculations and logical operations
11
Which of the following statements describes what an IP address indicates?
It specifies where you are on a computer network
It specifies where you are in the world
It specifies what type of computer you are using
12
What kind of peripheral device is a hard disk drive?
Input
Storage
Output
Media
13
Which of these would be the INPUT for a microwave?
The microwave beeps and the user has heated food
The microwave switches to the allocated mode
User presses buttons to select the power level and time
The contents is heated for duration set
14
What is a floating point number?
A number that has had an operation carried out in the ALU
A number that has no fixed value
A number that has a decimal point
A number that changes randomly
15
What number does an even number end in when represented in binary?
Either zero or one
It always ends in one
Either one or zero
It always ends in zero
16
What is the most accurate description of both Bluetooth and USB?
Both named after Scandanavian inventors
Methods used to transmit data between two or more devices
Both exclusive to Apple and Microsoft products
Types of mobile phone and memory stick
17
Why do computer programmers use standards?
Programmers have strict professional standards for design
Allow the programmers to choose the programming language
Allow computer programmers to work alone
Because they don't want to let themselves down
18
What is meant by the term 'backup'?
When some files on a system are deleted to make more space
When somebody walks backwards
A protocol ensuring files are not corrupted
When data and files are copied to a different device
19
How would the 4-bit binary pattern 1110 be represented in hexadecimal?
E
11
14
F
20
Why would you create a primary key?
To make each query in a database unique
To make each field in a database unique
To make each record in a database unique
21
Which types of memory might be used when the computer swaps data in and out of virtual memory?
A hard disk drive and random access memory
Random Access Memory and Read Only Memory
A hard disk drive and cache memory
Random access memory and cache memory
22
What does copyright mean?
You can buy any video, as long as it has an official logo
You are not allowed to watch a film with anyone else present
The person who creates work has the right to protect it
23
What is a web browser?
Software used for downloading apps to a smartphone
Software to access web pages, documents and apps on the web
Software used for streaming films over the internet
Software used for sending emails
24
How many bits are there in a nibble?
2 bits
8 bits
1 bit
4 bits
25
When does overflow happen?
When two binary numbers are successfully added together
Pattern of bits is too large to be stored in bits available
When a machine code program crashes
26
Which of the following is a reason why standards are used in computing?
To make sure software and hardware is able to work together
Standards are obsolete as changes happen so quickly
They're used so that only the right people can use systems
27
How many binary numbers would be available in a 4-bit system?
2
4
16
8
28
Which of these formats uses lossless compression?
PNG
GIF
JPG
DOC
29
All modern computers function on the same general model. What is it?
Input > Output > Storage
Input > Process > Output
Input > Process > Storage
Storage > Input > Output
30
Which hardware component allows a PC or a laptop to connect to a network?
A modem
A switch
A network interface card
A router
31
What is the difference between stereo and mono audio?
Stereo audio is only suitable when using hi-definition video
Stereo audio is louder than mono audio
Stereo audio usually requires twice as much data as mono
32
What is an operand in a machine code instruction?
Code that tells the CPU to halt the fetch-execute cycle
Data or an address the operator will need to use
Code that tells the ALU which kind of operation to carry out
33
Which type of connection is preferable for streaming high-definition video?
Coaxial
Copper
3G
Fibre optic
34
Which of the following is true?
Ring: 0 collisions - data packets travel on different cables
Bus: 0 collisions - data packets travel in one direction
Ring: 0 collisions - packets travel in 1 direction
Star: 0 collisions - data packets travel on different routes
35
What does 'dpi' mean?
The number of colours supported by the image format
The number of dots used per horizontal inch in the image
The number of dots that can be plotted each second on screen
36
What is a protocol?
The unique reference number for each device that communicate
A set of rules that defines how devices communicate
Component that connects a device to a network
The term used to change the traffic lights
37
What is a LAN (local area network)?
A connection of computers located on a single site
A collection of computers over a geographically remote area
A connection of computers located in a single building
38
What is machine-readable language?
Software used to interpret code
The only language that a computer can read and process
A high level programming language
39
Name a benefit of using computer models.
A computer model is always simple to make and is easy to use
Models usually contains far more detail than the real-life
A computer model can be used without risking real lives
Computer model data can be tracked to individual users
40
Which of these statements is true about de jure standards?
They are closely controlled by independent organisations
Optional standards that you choose to ignore if you want to
Standards which use the most up-to-date technology
41
What is the name of the back up method where ALL files/data are copied to a new device?
Partial Backup
Full Backup
Complete Backup
Incremental Backup
42
What is an advantage of a flat-file database?
All the data is stored in seperate tables linked together
It is a very compatible way of storing data
All the data is in the same place
43
Why do organisations have network policies?
To allow organisations to control what users do on a network
To make it harder to break the rules
To prevent users from misusing the network
Form agreement between the org & users on acceptable use
44
What type of software tool is used to write code?
Programming environment
WIMP interface
Operating system
Utility environment
45
What does the term 'off the shelf' mean?
The hardware or software is widely available
The software was made by a start-up company
The hardware or software can no longer be purchased
46
Which compressed file format is often used for storing digital camera images?
GIF
BMP
JPG
SVG
47
Which server has the role of hosting and matching web addresses to IP addresses?
Name server
Print server
Web server
Applications server
48
Which of these is
NOT
a benefit of automation?
The context of information can be accurately checked
Saves time as computers are quicker than humans
Data can be organised more efficiently and effectively
Reduces errors that humans could make
49
Who is responsible for maintaining many of the open standards used on the internet?
IBM
Facebook
The World Wide Web Consortium (W3C)
Github
50
What is a pixel?
Pair of coordinates that tells computer where to draw a dot
It is a single coloured 'dot' in a bitmap image
An animated object in a game that can collide with objects
51
Which of these technologies requires the least data?
VoIP telephone calls
Watching a TV show on iPlayer
Watching Netflix intently
Streaming music from an internet radio station
52
Which character set can represent English text using the least storage space?
Extended ASCII
Unicode
Extended Unicode
ASCII
53
Which one of these will not improve the quality of digital audio?
Increasing the sample rate
Increasing the size of each sample
Adding more metadata
Compressing the file
54
How does a computer execute a machine code program?
It follows the fetch-decode-execute cycle
It follows the software development lifecycle
It compiles the source code
It moves the instructions to ROM
55
What term is given to hackers who attempt to do good through hacking?
No Hats
Red Hats
White Hats
Black Hats
56
What is a computer?
Any device that can access the Internet
A device that can perform one specific task such as gaming
Any device that can be programmed with instructions
A device that sits on a desk with a keyboard and mouse
57
How would you describe an operating system that's able to execute many programs simultaneously?
Multi-tasking
Single-user
Real-time processing
Embedded
58
What is metadata?
Data that describes other data with organisation/structure
The names of the people in an image
Data stored in the computer's RAM
Data that is downloaded from photo sharing websites
59
Which of these is an example of trolling?
Posting comments online to try to evoke emotional responses
Copying software illegally and selling it for a profit
Accessing data without prior permission from others
60
What is the result of this binary addition? 0110 + 0101
0111
1011
1111
0100
61
How many hexadecimal digits are needed to represent an 8-bit binary pattern?
Eight
One
Two
Sixteen
62
What is the hexadecimal value 2D equivalent to in denary?
33
45
2014
1024
63
What is an embedded system?
Dedicated systems for a fixed purpose
Systems such as Microsoft Word or Excel
Devices that use software for a range of purposes
A system that must be switched on for larger system to work
64
What happens at the 'handshaking' between two devices?
Client request access, the server grant it, protocols agreed
Data packets are exchanged between the client and the server
Server request access, client grant it, protocols agreed
65
What does the operating system
NOT
do?
Allocate memory to programs when they need it
Make the hardware of the computer easier to configure & use
Provide a user interface
Model real world problems using mathematical formulae
66
What is bespoke software?
Software about bicycle wheels
Ready-made software that can be downloaded from the internet
General-purpose that can be used to solve different problems
Software designed specially to solve a particular problem
67
What is the name of a small amount of fast temporary memory within the processor?
Control Unit
ROM
RAM
Register
68
The set of instructions that a computer will follow in a program is called...
Python code
A flowchart
Pseudo code
An algorithm
69
What is machine code?
Code that triggers action in the CPU
Code written using a high level programming language
Code that encrypts programs to keep them secure
70
What is the largest base 10 integer value that 7 bits can be used to represent?
256
255
128
127
71
What is resolution?
It is a measure of how much an image has been compressed
It is a measure of how many pixels are used in a given area
It is the total number of pixels in an image
72
What kind of device is usually connected to the computer using an HDMI port?
Graphics Tablet
Bluetooth Keyboard
Monitor
Ink-jet printer
73
What is a WAN (wide area network)?
A connection of computers located on a single site
A connection of computers located in a single building
A collection of computers over a geographically remote area
74
Which of these is not covered by the Data Protection Act?
The copyright of data
The accuracy of data
The access of data
75
Which of these would be a PROCESS for a microwave?
The microwave switches to the allocated mode
User presses buttons to select the power level and time
The contents is heated for duration set
The microwave beeps and the user has heated food
76
What is intellectual property?
Products and inventions made by a computer company
A place of business where people invent and make things
The ownership and right to make money from idea & invention
77
What are de facto standards?
Standards which have been accepted as best for their purpose
Standards that are only applicable to hardware
Standards that are controlled by independent organisations
78
What is the result of 9+8 in binary if processed in a system which only supports 4-bit numbers?
0011
1000
0001
10001
79
How does data travel between the processor and the computer's RAM?
Through the expansion ports
Catching the train
Using peripherals
Using buses
80
What does the Computer Misuse Act make it illegal to do?
Send emails to people that you do not know
Try to steal or change data on a computer without permission
Send threats or otherwise abuse people using a computer
81
What kind of software is an operating system?
Gaming software
Utility software
System software
Application software
82
What is a relational database?
Built from a set of unique tables each with data 1 entity
Set of many databases about numerous, related topics
A database with one single large table
83
Which word describes how different types of files, software & hardware work together?
Usability
Suitability
Accessibility
Compatibility
84
How many unique binary values would be available in an 8-bit image?
16
64
256
128
85
Which of these could be done using RFID chips?
Purchasing products with a mobile phone
Encrypting email traffic on a network
Identifying and tracking animals in the wild
Monitoring atmospheric conditions from space
86
How many bytes are there in one kilobyte?
2048
1024
1048576
8
87
Which of these scenarios is
NOT
the result of overclocking?
The computer will run a little quicker
The computer will display the incorrect time and date
Processes might not be completed before the next instruction
The CPU could overheat
88
In terms of databases, what does consistency mean?
All data inputted follows the same format
All users have the same view of data
The data is the same no matter who views it
89
Robots use computer systems. Select a benefit of using robots in place of humans.
The life of a robot is less precious than humans
They can be trained to be aware of surrounding risks easily
Robots have no emotions, yet
They can work in hostile environments
90
What is a foreign key?
A field that does not belong in that table
A primary key that appears in another table for relationship
A field that is a unique identifier in that entity
91
With binary numbers, place values are always a power of what?
8
10
2
16
92
What is data mining?
Analysing large amounts of data to predict future trends
A description of data that is shared
A description of any data that is freely available
93
What is the name of all of the machine code instructions that a processor can use?
Word size
Cycles
Instruction Set
94
What is the bitrate of an audio file?
The amount of samples taken each second
The number of samples per second
The overall size of the audio file
The amount of data the file uses each second
95
Which of these is NOT a way a computer system could go wrong?
Malicious damage
Fall over
Hardware failure
Software bugs
96
What is the difference between an entity and an attribute?
Attribute is a table in a database and an entity is a field
Attribute is a field in a database and an entity is a table
Attribute is a record in a database and an entity is a table
97
Computers process information as what kind of numbers?
Hexadecimal
Denary
Binary
Analogue
98
What is encryption?
Closing a large crypt
Disguises data so that it can't be understood
Changes data so that it no longer has the same meaning
Encodes data, such as using M for male and F for female
99
Select ONE type of redundancy that can be found in computer systems
Software Redundancy
Hardware Redundancy
Capacity Redundancy
Data Redundancy
100
What does a Creative Commons licence allow you to do?
Take legal action against people who obtain your work
Prevents anyone using your personal details
Specify conditions about how any work you create may be used
101
What is 10111100 in hex?
15
AD
01
BC
102
What is the point of using hexadecimal instead of binary?
It is faster for a CPU to process
It takes up less memory
Computers only understand hexadecimal
Easier to use as it summarises 4 binary nums in 1 character
103
What is the smallest unit of data that can be represented inside the computer?
One nibble
One bit
One byte
One direction
104
Which is the fastest kind of memory for the CPU to access?
Hard Disk Drive
Random Access Memory
Level 1 Cache Memory
Level 2 Cache Memory
105
What is the purpose of a username and password?
To identify which files a user has rights to
To allow a user to log on to a network
To make it harder for forgetful people to log on
To identify the user and verify they are who they claim
106
Which interface requires the user to type in commands to give the computer instructions?
Graphical User Interface
Menu Driven Interface
Command Line Interface
Voice Activated Interface
107
Which of these character sets allows the largest number of different characters?
ASCII
Unicode
Extended ASCII
Extended Unicode
108
Which of these devices uses the least amount of energy?
Desktop PC
Laptop
Supercomputer
Mobile Phone
109
Which of these cannot be changed once a program has been stored there?
Hard Drive
EEPROM
RAM
PROM
110
Which of these is
NOT
true about compressing an image using JPG?
File size of the compressed image is always much smaller
Image may lose some details that are not actually visible
JPG can compress photographs better than it can diagrams
