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WorksheetsWJEC GCE DigiTech - Connected Systems
Total questions: 93
Worksheet time: 47mins
Which of the following is a protocol used for network communication?
Ethernet
Wi-Fi
TCP/IP
Bluetooth
What type of network is characterized by its ability to cover a large geographical area?
Local Area Network (LAN)
Wide Area Network (WAN)
Personal Area Network (PAN)
Metropolitan Area Network (MAN)
Which of the following is a type of wired transmission media?
Radio
Microwave
CAT6
Infrared
What is the primary function of Bluetooth in digital systems?
To provide high-speed internet access
To connect devices over short distances
To transmit data over long distances
To enhance video quality
What are the four phases in the evolution of the Internet according to the learning material?
Connectivity, Networked Economy, Collaborative Experiences, Internet of Everything
Connectivity, Social Media, E-commerce, Internet of Things
Networked Economy, Social Media, E-commerce, Internet of Things
Connectivity, E-commerce, Social Media, Internet of Everything
Which of the following is NOT one of the four pillars of the Internet of Everything (IoE)?
People
Process
Technology
Data
What is the need for IPv6 in the context of the Internet of Things (IoT)?
To enhance security features
Due to the limitations of IPv4
To increase data speed
To improve user interface
Which of the following interactions is NOT part of the three main interactions within the IoE?
People to People (P2P)
Machine to People (M2P)
Device to Device (D2D)
Machine to Machine (M2M)
In which contexts are smart devices typically used according to the learning material?
The home, the built environment, manufacturing
The office, transportation, healthcare
Education, agriculture, retail
Entertainment, sports, travel
What are the underlying technologies of smart devices mentioned in the learning material?
Sensors, software, communication technologies
Hardware, networking, cloud computing
Artificial intelligence, machine learning, robotics
Virtual reality, augmented reality, blockchain
What is the primary function of a hub in a network?
To analyze and direct data packets to specific devices
To copy all packets of data to all devices on the network
To connect different networks together
To provide wireless connectivity
At which layer of the OSI model does a router operate?
Layer 1
Layer 2
Layer 3
Layer 4
What additional features can routers provide?
Data packet copying
Network address translation (NAT)
Base protocol conversion
Wi-Fi device connection
What is the role of a gateway in a network?
To join two networks using the same base protocols
To join two networks using different base protocols
To analyze data packets
To provide wireless access
Which device allows Wi-Fi devices to connect to a network?
Hub
Switch
Wireless access point
Bridge
What is the primary function of a hub in a local area network (LAN)?
To forward data to a specific device using MAC addresses
To broadcast data to all connected devices
To connect different networks with different protocols
To filter and reduce network traffic
How does a switch differ from a hub in terms of data handling?
A switch broadcasts data to all devices
A switch connects different networks
A switch forwards data to a specific device using MAC addresses
A switch performs protocol conversion
What is the role of a bridge in a network?
To connect different networks with different protocols
To act as an entry and exit point for data
To connect and filter traffic between network segments
To perform protocol conversion
Which protocol is used for establishing reliable connections before transmitting data packets?
UDP
HTTP
TCP
SIP
What is the main purpose of a gateway in a network?
To broadcast data to all devices
To connect and filter traffic within the same network
To connect different networks with different protocols
To establish reliable connections
What does SMTP stand for?
Simple Mail Transfer Protocol
Secure Mail Transfer Protocol
Standard Mail Transfer Protocol
Simple Message Transfer Protocol
Which protocol is connection-oriented and ensures reliable data transmission?
UDP
FTP
TCP
SMTP
What is a key characteristic of UDP?
Connection-oriented
Guarantees delivery
Connectionless
Uses flow control
Which protocol is suitable for applications where reliability and data integrity are crucial?
UDP
TCP
SMTP
FTP
What does TCP use to manage the rate of data transmission and prevent network congestion?
Error checking
Flow control mechanisms
Connectionless protocol
Minimal error checking
Which protocol is suitable for applications where speed is more important than reliability?
TCP
UDP
Ethernet
Bluetooth
What is the primary use of Ethernet in networking?
Wireless communication
Short-range data exchange
Wired system using copper or fibre optic wiring
Satellite communication
In which layer of the OSI model is Ethernet used?
Application layer
Network layer
Physical and data link layer
Transport layer
What is a common use of Wi-Fi technology?
Connecting devices wirelessly in a LAN
Long-distance satellite communication
Underwater data transmission
High-speed fiber optic connections
What type of hardware is required for Wi-Fi connectivity?
Fiber optic cables
Wireless NIC card and wireless router
Satellite dish
Ethernet cables
What is Bluetooth primarily used for?
Long-distance communication
Short-range wireless data exchange
High-speed internet access
Satellite communication
What is the primary function of Bluetooth technology?
To connect devices wirelessly using radio frequency
To provide high-speed internet access
To store large amounts of data
To enhance video quality
Which of the following is a common use of Bluetooth?
Video conferencing
Audio streaming to speakers
Printing documents
Editing photos
What does TCP/IP stand for?
Transmission Control Protocol/Internet Protocol
Transfer Communication Protocol/Internet Protocol
Transmission Control Program/Internet Program
Transfer Control Protocol/Internet Program
Which layer of TCP/IP is responsible for the addressing and routing of data?
Application
Transport
Network
Physical
What protocol is used at the Application layer of TCP/IP?
Transmission Control Protocol (TCP)
Internet Protocol (IP)
Hypertext Transfer Protocol (HTTP)
Ethernet Protocol
What is the primary function of routing in a network?
To encrypt data packets
To send datagrams using IP addresses
To store data packets
To create data packets
What is a key difference between IPv4 and IPv6?
IPv4 uses a 64-bit address space
IPv6 uses a 32-bit address space
IPv4 uses a 32-bit address space, while IPv6 uses a 128-bit address space
IPv6 uses a 64-bit address space
How do cellular networks transmit data?
Through wired connections only
Using electromagnetic waves
By satellite signals
Through infrared signals
What is the first step in transmitting a text message between two handsets in a cellular network?
The signal is received by a nearby cell tower
The binary format is transmitted through the antenna
The handset encodes the message into binary form
The signal is sent to another cell tower through cables
What was the primary advancement of 3G cellular networks?
Sending SMS and MMS
Access to the Internet and video calling
Streaming films and music
Operating smart factories
Which generation of cellular networks allows for smart factories and driverless cars?
2G
3G
4G
5G
What is the maximum transmission speed of a CAT5 Ethernet cable?
10 Mbps
100 Mbps
1 Gbps
10 Gbps
Which type of fibre optic infrastructure provides a direct connection to the premises?
FTTC
FTTP
CAT6
CAT5e
What type of transmission media uses radio waves to transmit data?
Wired
Fibre
Wireless
Ethernet
What is the primary use of microwaves in wireless communication?
To create LANs
To create WLANs
To create fiber optic networks
To create satellite networks
How does satellite communication work?
By transmitting data through fiber optics
By using microwaves to connect devices
By transmitting data from Earth to a satellite and back
By using infrared signals for short-range communication
What is the measurement unit for bandwidth?
GHz
Mbps
Kbps
Hz
Which type of network connects devices locally within a building?
WAN
WLAN
LAN
WWAN
What is a smart device typically defined as?
A device that uses only wired connections
An electronic device connected to other devices on a network
A device that operates independently without any network
A device that only uses infrared technology
What is a primary function of a smart thermostat?
To stream videos from the Internet
To remotely control the temperature of a house
To notify users of a doorbell ring
To track the contents of a fridge
Which of the following is an advantage of smart doorbells?
They can save heating bills
They can prevent burglaries
They can control the cooling system of a fridge
They can stream subscription services
What is a disadvantage of smart home systems?
They are always compatible with each other
They are inexpensive to buy
They can be hacked by cyber criminals
They do not collect any data
How do smart fridges help users manage food?
By streaming cooking shows
By tracking the contents and 'sell-by' dates
By controlling the room temperature
By notifying users of doorbell rings
What is a potential issue with smart devices from different companies?
They are always compatible
They may not collaborate with each other
They are free to use
They do not require Internet connection
What is one of the main advantages of smart traffic management systems in cities?
Increased privacy for individuals
Reduced traffic speeds and congestion
Higher costs for infrastructure
Decreased surveillance in communities
Which of the following is a disadvantage of smart city technology?
Improved transportation
Less pollution
Privacy concerns
Safer communities
What is a key feature of Industry 4.0 in manufacturing?
Manual labor increase
Data-driven automation
Decreased use of technology
Increased human error
How do automated robots benefit manufacturing companies?
They increase human error
They move autonomously based on customer demand
They require constant human supervision
They decrease productivity
What is an advantage of using smart glasses in manufacturing?
Increased manual errors
Decreased efficiency
Step-by-step instructions for workers
Higher costs for companies
Which of the following is a potential disadvantage of smart devices?
High cost due to hardware, software, and expertise
Increased job opportunities
Enhanced privacy and security
Reduced automation of tasks
What is the role of a microprocessor in smart devices?
To store data permanently
To compute data and instructions and make decisions
To provide power to the device
To connect the device to the Internet
Which of the following is an example of a sensor/input in smart devices?
Speakers
Monitors
Cameras
Bluetooth
What technology allows smart devices to connect wirelessly to the Internet?
Bluetooth
Wi-Fi
Operating system
Microprocessor
In the context of smart devices, what is the function of a speaker?
To input sound
To output sound
To process data
To connect to the Internet
Which of the following is an example of increased automation due to smart home devices?
Monitoring production processes in real-time
Turning on lights and adjusting thermostats through voice commands
Learning user preferences for heating and cooling
Providing real-time data on blood sugar levels
What is a benefit of IoT-enabled machines in manufacturing?
Increased energy consumption
Reduced downtime in factories
Increased network complexity
Less privacy and security
How do smart thermostats contribute to cost savings?
By providing instant data access
By enabling direct communication
By adjusting heating and cooling settings automatically
By increasing network complexity
What is a negative impact of smart home devices on privacy?
They increase energy savings
They allow hackers to access video feeds
They improve user communication
They provide real-time health data
What challenge is associated with device compatibility in smart homes?
Increased automation
Integration challenges
Instant data access
Direct communication
What is a positive social impact of smart devices?
They enhance workplace productivity.
They improve healthcare accessibility.
They enhance connectivity and convenience.
They protect user data and privacy.
What is a negative legal impact of smart devices?
They lead to social isolation.
They require raw materials like rare earth metals.
They cause increased monitoring in workplaces.
They create challenges in ensuring compliance with data protection laws.
How can smart devices positively impact the environment?
By reducing face-to-face interactions.
By optimizing energy use.
By increasing resource depletion.
By enhancing workplace productivity.
What is an ethical concern related to smart devices?
They improve quality of life.
They enhance remote work capabilities.
They involve data privacy and surveillance issues.
They protect user data and privacy.
What is a negative environmental impact of the proliferation of smart devices?
Reduces carbon footprint
Increases energy consumption
Enhances recycling efforts
Promotes eco-friendly designs
How can the negative impact of smart device disposal be mitigated?
By increasing e-waste
Through eco-friendly designs
By using more toxic chemicals
By ignoring recycling initiatives
In which phase of Internet evolution is the "Networked economy" categorized?
Phase 1
Phase 2
Phase 3
Phase 4
What is the focus of Phase 4 in the evolution of the Internet?
Connectivity
Networked economy
Collaborative experiences
Internet of Everything (IoE)
What is the first phase of the Internet's evolution referred to as?
Networked Economy
Connectivity
Collaborative Experiences
Internet of Everything
Which phase is characterized by the widespread use of social media, mobility, video, and cloud computing?
Connectivity
Networked Economy
Collaborative Experiences
Internet of Everything
What does the Internet of Things (IoT) primarily involve?
A network of physical objects with unique identifiers
A system of interconnected human networks
A collection of digital media platforms
A series of online educational tools
What is the main difference between IPv4 and IPv6?
IPv4 is faster than IPv6
IPv6 has a larger address space than IPv4
IPv4 supports more devices than IPv6
IPv6 is only used for mobile networks
Which of the following is NOT one of the four pillars of the Internet of Everything (IoE)?
People
Process
Data
Software
What are People to People (P2P) connections in the context of IoE?
Connections made between devices
Connections made when information is transferred from one person to another
Connections made between businesses
Connections made between machines
Which of the following is an example of a connection in the retail sector?
Telework
Video cameras
Store associate mobile devices
R&D and production teams
What is one impact of People to People connections in the manufacturing sector?
On-demand expert advice
Employee productivity
Development mobile collaboration on factory floor
Smart health
Which sector benefits from telework as a connection?
Retail
Manufacturing
Public sector
Service providers
What is an impact of People to People connections in the service providers sector?
On-demand training
Telepresence as a service
Lower costs
Collaborative product development
What is the primary purpose of Machine to People (M2P) interactions?
To transfer information between devices
To help a person make a decision
To create a feedback loop between machines
To enhance machine learning capabilities
Which of the following is a connection used in the retail sector for M2P interactions?
Video analysis of control systems
Intelligent GPS
Connected grocery trolleys
Smart parking
What is one of the impacts of M2P interactions in the manufacturing sector?
Personalised content
Real-time supply chain
Enhanced security
Personalised traffic report
In the public sector, which connection is used to enhance security and create safer communities?
Video surveillance
Wi-Fi badges
Home security devices
Operations dashboards
What impact do M2P interactions have on service providers?
Optimised retail operations
Increased revenue/compliance
Hyper location presence
Operations analytic
