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