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