Font size
WorksheetsWJEC GCSE DIGI TECH - Digital Systems
Total questions: 129
Worksheet time: 1hrs 11mins
What is the primary use of a dictation system in digital devices?
To convert text into speech
To recognize and convert spoken words into text
To control devices using gestures
To enhance audio quality
Which method of speech input involves using a unique tone of voice for identification?
Dictation system
Voice commands
Voice print
Text-to-speech
What is an advantage of using speech input over keyboard input?
It requires learning to type
It increases the risk of repetitive strain injury
It is faster than keyboard input
It takes up more room on the desk
Which of the following is a disadvantage of speech input?
It reduces typing mistakes
Background noise can interfere with recognition
It allows for multitasking
It is more natural than typing
What is one advantage of using a traditional keyboard?
It is difficult to use in noisy environments.
Most computers do not come with a keyboard.
A skilled typist can input data very quickly.
Keyboards are suitable for producing diagrams.
Which of the following is a disadvantage of using a traditional keyboard?
It is easy to make mistakes when typing data.
Keyboards are ideal for creating diagrams.
Most people require extensive training to use keyboards.
Keyboards are not included with most computers.
What is a common use of a mouse with a computer?
Typing commands in DOS.
Moving a cursor on the screen.
Copying and pasting text.
Producing diagrams.
Why might excessive use of a keyboard lead to health issues?
It can cause repetitive strain injury.
It is not suitable for producing diagrams.
It requires a lot of training.
It is difficult to use in noisy environments.
What is a gesture in the context of non-contact communication?
A type of verbal communication
A type of non-contact communication using body movement
A written form of communication
A type of communication using sound waves
Which of the following is an advantage of using gestures?
Requires additional devices
Gestures feel unnatural
It is possible to interact without touching surfaces
Complex processing is not required
What is a disadvantage of using gestures?
Gestures feel natural
Additional devices are not required
Accidental gestures can cause unwanted interaction
It is possible to interact without touching surfaces
Which of the following is an example of using gestures?
Typing on a keyboard
Swiping options on a screen with a wave of the hand
Speaking into a microphone
Writing with a pen
What is one advantage of using touch screens?
Requires a keyboard
Difficult to learn
Easier hand-eye coordination
Needs a mouse
Which of the following is a disadvantage of touch screens?
Very intuitive
Screen can be easily damaged
No keyboard is required
Direct and easy to learn
How do VR headsets enhance user interaction?
By using a mouse
By projecting images to the user's eyes
By requiring a keyboard
By using a touch screen
What is a disadvantage of using VR equipment?
Provides an immersive experience
Can be used to train students
Equipment tends to be expensive
Can be used without risk
What is one advantage of Augmented Reality (AR) in medicine?
It increases the cost of medical procedures.
It allows for early detection and planning of surgeries.
It reduces the need for medical training.
It immerses users in a virtual world.
Which of the following is a disadvantage of AR-based applications?
They are inexpensive to maintain.
They do not require any training.
They have privacy concerns.
They are easy to use without training.
How does Augmented Reality (AR) differ from Virtual Reality (VR)?
AR immerses users in an artificial world.
AR combines graphics with the real world.
AR does not use any visual devices.
AR is only used in gaming.
What is an example of an AR application mentioned in the text?
Beatsaber
Pokémon Go
Surgeon training
Virtual meetings
What are biometric identifiers used for?
To identify individuals
To store passwords
To enhance internet speed
To create network connections
Which of the following is an advantage of using biometrics?
Easy to transfer details to others
No need to remember passwords
Equipment is inexpensive
Characteristics can be easily recreated
What is a disadvantage of using biometrics?
Better security
Difficult to steal characteristics
Equipment tends to be expensive
No need to remember passwords
How is the Internet best described?
A single computer
A local network of devices
A world-wide network of computers linked together
A collection of personal devices
What is a network?
A single computer
Two or more computers linked together
A type of biometric system
A method to store data
What is the primary function of a hub in a network?
To store addresses of computers
To copy all data packs to all devices
To analyze each packet of data
To join two networks with different protocols
How does a switch differ from a hub in its operation?
A switch stores addresses of computers
A switch connects two different networks
A switch sends data only to the addressed computer
A switch joins networks with different protocols
What role does a router play in a network?
It copies data to all devices
It stores addresses and transfers data between devices
It provides functionality for clients
It joins networks with different protocols
What is the function of a gateway in a network?
To store user files centrally
To connect at least two different networks
To join networks with different base protocols
To analyze each packet of data
What is the purpose of a server in a network?
To copy data to all devices
To provide functionality for clients
To join networks with different protocols
To store addresses of computers
What is the primary function of a bridge in networking?
To connect two networks using different protocols
To join two networks using the same base protocols
To provide internet access to households
To store web pages for access
What does an Internet Service Provider (ISP) typically offer?
Only fiber optic connections
Only email services
A variety of internet connection modes and additional services
Only web page hosting
What is a web server primarily used for?
To create programming languages
To transfer files between computers using a web browser
To provide internet connection
To convert URLs to IP addresses
How are resources on the World Wide Web identified?
By IP addresses
By Domain Name Systems
By Uniform Resource Locators (URLs)
By web browsers
What is a URL?
A type of web server
A string providing the full address of a web page
A programming language
A type of internet connection
What does the protocol in a URL specify?
The type of content on the website
The web server's protocol for accessing a page
The website's security level
The website's language
In a four-piece URL, what does the path represent?
The main domain of the website
A subdirectory to a specific web page
The security protocol used
The website's language
What additional piece is included in a five-piece URL compared to a four-piece URL?
Second level domain
Security protocol
Language specification
Content type
How do search engines sort the results they display?
By the length of the content
By the number of images
By the best match to the search terms
By the website's age
What is the main difference between ADSL and SDSL in broadband technology?
ADSL has faster upload speeds than download speeds.
SDSL has different upload and download speeds.
ADSL has faster download speeds than upload speeds.
SDSL is only used for home connections.
What is the maximum distance ADSL can effectively work from the exchange?
3.5 km
5.5 km
6 km
7 km
Which of the following is an advantage of using ADSL for broadband?
Requires additional wires.
Is available off-site.
Allows a telephone to be used simultaneously.
Is not available for a fixed monthly fee.
What does Mbps stand for in the context of internet connections?
Megabytes per second
Megabits per second
Millibits per second
Microbytes per second
Which of the following is a disadvantage of broadband using ADSL?
Provides a fairly fast connection.
Is available for a fixed monthly fee.
Is not available everywhere, if too far from exchange.
Uses existing phone line.
What is one advantage of satellite internet connectivity?
It is very expensive.
It is available worldwide.
It is relatively slow compared with fibre.
Bad weather impacts the signal.
Why is satellite connectivity often used in rural locations?
It is faster than fibre connections.
It is cheaper than ADSL connections.
The exchange is too far away to use an ADSL connection.
It is unaffected by physical barriers.
What is a disadvantage of satellite internet connectivity?
It is cheap to install.
It has no data caps.
It is very expensive, especially the fastest connections.
It is unaffected by weather.
What is the typical speed range for satellite internet connections?
1Mbps to 10Mbps
2Mbps to 30Mbps
5Mbps to 50Mbps
10Mbps to 100Mbps
What does FTTC stand for in fibre broadband connections?
Fibre to the Cabinet
Fibre to the Connection
Fibre to the Computer
Fibre to the Cable
Which type of fibre connection is the fastest broadband connection method?
FTTC
FTTP
DSL
Satellite
What is one disadvantage of fibre broadband mentioned in the text?
It is available everywhere.
It is always the cheapest option.
It is not available in some remote areas.
It has a limited connection length.
What is an advantage of fibre broadband?
It cannot be used with a telephone.
It provides the connection with the best possible speed.
It is only available for a high monthly fee.
It is slower than standard broadband.
What is one advantage of 4G/5G mobile communication?
It requires wires for connection.
It is available only in urban areas.
It provides a fairly fast connection.
It is slower than ADSL.
Which of the following is a disadvantage of 5G signals?
They travel farther than 4G signals.
They are easily blocked by objects.
They are cheaper to implement.
They require fewer towers.
What is the maximum data transfer rate for 5G mentioned in the text?
10Mbps
50Mbps
100Mbps
200Mbps
Why might 5G be costly according to the text?
It uses less data.
It requires fewer devices.
It can exceed data allowances in contracts.
It is slower than 4G.
What is the common name for the 802.11 standards that allow wireless data exchange between a device and the Internet?
Bluetooth
Wi-Fi
Ethernet
NFC
Which of the following is an advantage of Wi-Fi 802.11?
Requires physical cables for connection
Allows a wireless connection to any device with access to the router
Only supports one device at a time
Provides the slowest connection speeds
What is a disadvantage of using old routers with 802.11b frequencies?
They provide speeds up to 2Gbps
They are too slow to play online games
They have the latest encryption
They offer high reach outdoors
Which encryption tool is mentioned as weak and fairly easy to hack?
WPA3
WPA2-PSK
WEP
AES
What is Bluetooth commonly used for?
Connecting to the Internet
Connecting peripherals like headphones and speakers
Sending emails
Browsing social media
Which of the following is an advantage of Bluetooth?
High-speed data transfer
Long-range connectivity
Low energy usage
Strong security
What is a disadvantage of Bluetooth?
High energy consumption
Low reach and speed
Complex setup process
Incompatibility with most devices
What is the primary function of Geographical Information Systems (GIS)?
Connecting to the Internet
Showing your position on a map using a computer
Sending text messages
Streaming videos
Which of the following is an advantage of GIS?
It can be blocked by objects
It helps rescue teams find injured people
It always provides the correct address
It requires no satellite connection
What is one of the primary functions of an operating system?
To design software applications
To manage computer system resources
To create network connections
To develop hardware components
Which feature of an operating system allows users to continue working while waiting for a document to print?
Process control
Security control
Spooling
Managing memory
What does managing memory in an operating system ensure?
Programs and data do not corrupt each other
Faster internet connectivity
Enhanced graphics performance
Automatic software updates
How does process control benefit a multi-tasking operating system?
It speeds up the CPU
It ensures tasks appear to run simultaneously
It increases storage capacity
It enhances security features
What is a function of security control in an operating system?
To manage network traffic
To allow creation and deletion of user accounts
To optimize battery usage
To enhance video playback quality
What is the purpose of managing back-up space in an operating system?
To increase internet speed
To ensure data can be retrieved correctly from any disk drive
To enhance audio quality
To improve screen resolution
What is the main disadvantage of software-based disk compression?
It slows down the process of reading and writing to disk.
It requires specialist hardware.
It is always lossy.
It cannot be used on most computer systems.
Which of the following is true about hardware disk compression?
It requires specialist hardware and is expensive.
It is always lossy.
It is included in most operating systems.
It slows down the process of reading and writing to disk.
What is the purpose of disk defragmentation?
To physically re-arrange files so they are no longer fragmented.
To compress files to save space.
To delete unnecessary files.
To encrypt files for security.
Which of the following is NOT a function of providing a user interface in an operating system?
Allows copying/deleting/moving/sorting/searching of files or folders.
Provides a command line interface.
Compresses files to save space.
Allows users to have more than one window open.
What does HCI stand for in the context of computer systems?
Human Computer Interface
Hardware Compression Interface
High Capacity Input
Human Communication Integration
What is a command line interface (CLI)?
A graphical user interface for interacting with computers
A text-based interface for communicating with a computer system
A voice-controlled interface for managing computer systems
A touch-based interface for mobile devices
Which of the following is an advantage of using a command line interface?
Requires a lot of memory and processing power
Very intuitive for beginners
Quicker to input commands as shortcut keys can be used
Requires storing graphical images
What is a disadvantage of a command line interface?
It is very intuitive for new users
Commands have to be typed precisely
It requires a lot of graphical storage space
It is slower to type commands
Why might experts find command line interfaces fast to use?
They can guess the instructions easily
They have memorized the commands
They rely on graphical images
They use voice commands
What is a GUI?
A type of interface that uses graphical icons for user interaction
A command line interface for advanced users
A hardware component for processing data
A programming language for software development
Which of the following is an advantage of a GUI?
Requires a large amount of memory
Easy to navigate
Is relatively processor intensive
Takes up a large amount of hard disk space
What is a disadvantage of using a GUI?
Intuitive and easy to use
Uses windows, icons, menus, and cursors
Requires a large amount of memory
No complicated commands
Which feature is NOT typically part of a GUI?
Windows
Icons
Menus
Command line prompts
What is one advantage of a touch-sensitive interface?
It requires a keyboard or mouse.
It is very intuitive.
It is difficult to select small items.
Screens are difficult to read when dirty.
Which of the following is a disadvantage of a touch-sensitive interface?
Easier hand-eye coordination than a mouse.
No keyboard or mouse is required.
Screen can be easily damaged or scratched.
Touching a visual display requires little thinking.
Why might a touch-sensitive interface be easier to use?
It requires complex thinking.
Users must be within arm’s reach of the display.
It allows direct manipulation by touching the display.
Screens need to be installed at a lower position.
What is a potential issue with using a touch-sensitive interface in terms of screen visibility?
Easier hand-eye coordination.
User's hand may obscure the screen.
No keyboard or mouse is required.
It is very intuitive.
What is a menu driven interface?
An interface that uses a series of menus for user interaction
An interface that requires command line inputs
An interface that uses voice commands
An interface that uses touch gestures
Which of the following is an advantage of a menu driven interface?
Requires learning many commands
Intuitive and easy to understand
Needs high processing power
Complex for beginners
What is a disadvantage of a menu driven interface?
Easy to navigate
Requires expert language
Can be irritating if there are too many menus
Little processing power needed
Why might a menu driven interface be ideal for beginners?
Everything is in a logical place/order
It requires expert language
It is complex to understand
It needs high processing power
What was the first use of a biometric system on a portable device?
Facial recognition on the iPhone X
Fingerprint scanning on the Pantech GI 100
Retina scanning on the Samsung Galaxy
Voice recognition on the Nokia 3310
Which iPhone model first integrated a fingerprint scanner?
iPhone 4
iPhone 5s
iPhone 6
iPhone X
What is one advantage of using biometric technology?
It is easily transferable between users.
It increases security as the password is based on unique biometric information.
It requires frequent password changes.
It is cheaper than traditional passwords.
What is a disadvantage of biometric technology?
It is difficult to hack.
It shares biometric data with companies.
It is non-transferable.
It provides a better user experience.
What is a voice driven interface also known as?
Voice recognition
Text recognition
Gesture control
Eye tracking
Which of the following is an advantage of using a voice driven interface?
It requires learning to type
It reduces the risk of repetitive strain injury
It increases typing mistakes
It takes up more desk space
What is a disadvantage of voice driven interfaces related to privacy?
Background noise interference
Difficulty in keeping data input private
Need for a keyboard
Increased typing errors
Why might users with a speech impediment find voice driven interfaces challenging?
They require more desk space
They may not be understood
They are slower than typing
They increase typing errors
Other than a FULL backup, match the other back up methods
Incremental
Backs up files changed since last backup
Differential
Backs up data since the last full backup
Grandfather
Backed up yearly
Father
Backed up monthly
Son
Backed up daily
Which backup method only backs up files that have changed since the last backup?
Full
Incremental
Differential
GFS
What is the purpose of the Systems Development Life Cycle (SDLC)?
To describe the stages involved in a project that involves a change to a new system
To provide a detailed budget for IT projects
To outline the specific roles of each team member in a project
To serve as a contract between the service provider and the client
What is the primary focus during the 'Investigation' stage of the SDLC?
Developing and testing the system
Conducting a feasibility report
Planning the project in detail
Evaluating the overall project
During which stage of the SDLC does the system analyst carry out detailed investigations to fully understand the current system and the plan?
Investigation and Analysis
Design
Implementation
Maintenance
What is the goal of the 'Design' stage in the SDLC?
To ensure the system is working correctly and is ready for use
To look at the overall project and consider how things went
To plan the project in detail so that the system will meet user requirements
To continue system support for the lifetime of the system
What is the purpose of a decision table in systems development?
To create a visual representation of the system's database
To identify how a system should respond to different sections of actions
To outline the physical layout of the system's hardware
To document the personal information of system users
What does a data dictionary typically contain?
A list of all the passwords for users in the system
Records about other objects in the database
The physical dimensions of the database server
A backup of the database itself
Which phase of the Systems Development Life Cycle does the analysis of system requirements occur?
Implementation phase
Analysis phase
Design phase
Testing phase
What is a field in the context of a database?
A set of related databases
A single piece of information from a record
A type of data encryption method
A user interface element
What is a Data Flow Diagram (DFD)?
The storage location for data
A model to provide detail of each process in an IT system
A graphical representation of the user interface
The documentation of the system's hardware
What is the purpose of testing in computer hardware and software development?
Determine whether the program meets the needs of the client (user)
To check the program works properly and identify any errors
To determine the color scheme of the program
To assess the speed of the program
What would be an example of a valid extreme test in boundary testing?
A number below the valid range
A number above the valid range
A number just inside the valid range
A number just outside the valid range
Which of the following is an example of an invalid extreme in boundary testing?
A number far outside the valid range
A number slightly above the valid range
A number at the midpoint of the valid range
A number just inside the valid range
When does iterative testing typically take place?
After the product is released to the market
Before the development of the system begins
During the development of the system
Once the final product is complete
What is final testing?
Testing the initial concept of the product
Testing each part of the system separately
Testing the complete system after development is finished
Testing the system's compatibility with other software
What is the Big Bang (Direct) implementation method in Systems Development Life Cycle?
The new IT system is implemented in parts at different intervals.
The new IT system is immediately implemented in place of the old system.
Only one part of the organization trials the new system while the rest continue using the old one.
The new IT system and old IT system run side by side.
What is the Phased implementation method of a new system?
A new IT system is gradually implemented in parts and the old system remains in use until the new system is fully installed
Directly replacing the old system
One or two departments trial the system, everyone else uses the old one
The new and old system run side-by-side to iron out problems
What is the Pilot method?
New and old system runs side-by-side
One or two departments trial the new system, whilst others stay on the old system
New system completely replaces the old system, instantly
New system is gradually introduced until all new parts of the new system are installed
What is the Parallel method of implementation?
Gradually introduce the new system
One or two departments trial the new system, others stay on the old system
New and old system run side-by-side until everything is completely installed
The new system completely replaces the old system
Which of the following is NOT a feature of paper documentation?
User guide with instructions and screenshots
Glossary of technical terms
Source code with comments
Troubleshooting list
What is an example of adaptive maintenance?
Fixing issues as they are reported
Making minor adjustments that don't impact the system's performance
Changing the system due to organizational control
Changing the system that is out of the organization's control
Which feature is specific to on-screen documentation?
Short introduction/overview of the system
Text search facility
File formats used/File naming conventions
Glossary of technical terms
What type of information is typically included in technical documentation?
Video tutorials
Internal details of a database
Popup help boxes
FAQ section
Match the advantages and disadvantages of the 'Big Bang' implementation method
1 - Advantage
1 - Cheap method of installation
2 - Advantage
2 - All users can access right away
1 - Disadvantage
1 - High risk as you can't go back!
2 - Disadvantage
2 - Staff might find it difficult to use
Match the advantages and disadvantages of the Phased method
1 - Advantage
1 - Lower risk - old system still in use
2 - Advantage
2 - Staff gradually introduced
1 - Disadvantages
1 - Time consuming process
2 - Disadvantages
2Tricky to integrate old and new systems
Match advantages and disadvantages of the Pilot method
1 - Advantages
1 - Only small part of business affected
2 - Advantages
2 Staff involved could train other staff
1 - Disadvantages
1 -Staff involved could be disadvantaged
2 - Disadvantages
2 - Increased workload for IT staff
Match the advantages and disadvantages of the Parallel method
1 - Advantage
1Use the old system if new one is broken
2 - Advantage
2Staff have time to learn the new system
1 - Disadvantage
1 - Both systems need to store same data
2 - Disadvantage
2 -High costs running 2 systems together
There are 6 steps in the SDLC. Place them in order (two have been put together)
Investigation & Analysis
Design
Implementation
Maintenance
Evaluation
