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