Exam code: 4IT1
The concert venue uses an online booking system.
Customers can store a digital ticket to their smartphone and access the venue by scanning their phone.
Which one of these is the wireless technology used during this scan?
4G
Bluetooth
NFC
Wi‑Fi
Gail uses different types of networks in her job.
Draw one straight line from each type of network to the correct reason for its use.
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Visitors usually bring a digital device to events at the venue.
Describe one way a visitor can use features of a tablet to connect it to a smartphone’s mobile broadband connection.
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Camille creates a home network.
State what is meant by ‘tethering’.
Camille connects to a LAN.
State two features of a LAN that are different from a WAN.
Camille’s mobile phone can receive data using 3G, 4G, 5G and GPS.
State two other wireless communication methods used by mobile phones.
Camille uses wired and wireless connectivity.
Draw one straight line from each connection method to the correct characteristic.
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Joe streams a radio show online.
State the type of network required to stream the show to listeners outside of Joe’s LAN.
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Joe connects to different types of networks.
Joe uses networks to stream his show.
(i)
Give two types of wireless connectivity that Joe could use to connect a laptop to a smartphone.
[2]
(ii)
Explain one reason why Joe must use a WAN to stream a show.
[2]
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Joe uses GPS.
Which one of these statements about GPS is true?
Data must be sent to multiple satellites for accuracy
Devices cannot connect to a network without GPS
GPS calculations require data from one GPS satellite
The GPS system does not receive data from Joe’s devices
Which one of these is a reason why Joe would use GPS?
To connect to a wide area network
To include location data in image files
To prevent access to files by the general public
To provide a connection if a mobile phone network fails
Joe’s laptop uses a wired connection to the Internet through broadband.
Joe’s smartphone has mobile broadband connectivity.
The laptop loses its connection to the Internet.
Describe one method Joe could use to keep the laptop online.
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Ari works on a laptop in a coffee shop. The coffee shop offers free public Wi-Fi to all of its customers.
Give two drawbacks to Ari of using the coffee shop's public Wi-Fi.
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Kai's home router provides Wi-Fi. Kai's laptop works well in the living room, where the router is.
In a bedroom at the other end of the house, web pages take a long time to load.
Explain one reason why.
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A hotel wants to give its guests Internet access. Guests will use their own laptops, tablets and smartphones in their rooms, in the restaurant and by the pool.
The hotel manager chooses Wi-Fi.
Explain two reasons why Wi-Fi is suitable for the hotel.
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Kai wants to connect wireless headphones to a smartphone to listen to music while walking.
Which one of these should Kai use to connect the headphones?
4G
Bluetooth
GPS
NFC
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Jordan wants to send a large video file from a smartphone to a laptop in the same room. Both devices have Bluetooth and Wi-Fi.
Explain one reason why Jordan should use Wi-Fi instead of Bluetooth for this transfer.
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Remi drives a delivery van. Remi uses a wireless headset to make hands-free phone calls while driving.
The headset connects to Remi's smartphone using Bluetooth.
Explain two reasons why Bluetooth is suitable for this use.
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A family lives on a farm far from the nearest town. No telephone or internet cables reach the farm, and there is no mobile phone signal.
Which one of these could give the family an internet connection at home?
Bluetooth
Fibre optic cable
Infra-red
Satellite
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Tomi books a taxi using an app on a smartphone. The app uses Global Positioning System (GPS) data from the phones of its drivers and customers.
Give two ways the app could use this GPS data.
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Remi uses a navigation app on a smartphone. The app uses the Global Positioning System (GPS).
When Remi is deep inside a large shopping centre, the app often shows the wrong position or no position at all.
Explain one reason why.
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Lin lives in a remote area and connects to the internet using satellite communication.
Lin often makes live video calls.
Explain one drawback of satellite communication for Lin's video calls.
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Sasha leads walking groups in remote mountain areas. Sasha carries a handheld Global Positioning System (GPS) device.
Explain two reasons why a GPS device is suitable for this use.
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A team of scientists works at a research camp in a desert. The camp is hundreds of kilometres from the nearest town. It is only used for three months each year.
The team must send their results to their university every day.
Explain two reasons why satellite communication is a suitable way for the camp to connect to the internet.
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Many people receive television and radio programmes by broadcast.
State what is meant by broadcast communication.
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Nour listens to a radio station on a digital radio. The same station can also be streamed over the internet.
Explain one benefit to Nour of listening to the broadcast rather than streaming it.
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A government needs a way to warn people quickly when a dangerous storm is coming. The warning must reach as many people in the country as possible.
Explain two reasons why the government should send the warning using television and radio broadcasts.
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Digital devices can communicate using wired connections.
Give two examples of wired connections that digital devices use to communicate.
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Dev plays fast online games. Dev connects the game controller to the games console with a Universal Serial Bus (USB) cable instead of using a wireless connection.
Explain one reason why Dev uses the USB cable.
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A film company has two studios in the same city, 8 km apart. Every day, very large video files must be sent between the two studios.
The company pays for a fibre optic cable to connect the studios.
Explain two reasons why a fibre optic cable is suitable for this connection.
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Noor buys a new smartphone and wants to use the 4G (fourth generation) mobile network to access the internet.
Which one of these must the smartphone have?
Bluetooth adapter
NFC chip
SIM card
Wi-Fi adapter
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Paulo's tablet uses a wireless connection at home. In some rooms the connection is weak.
State one thing that can weaken a wireless signal.
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Kai watches videos on a smartphone while travelling by bus. Kai's phone can connect to both 3G and 4G mobile networks.
Explain one benefit to Kai of using 4G rather than 3G.
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A farmer places 20 sensors across a large field. Each sensor sends soil readings to a computer in the farmhouse.
Explain one reason why the sensors should use wireless communication rather than cables.
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A delivery company gives each of its drivers a tablet with a 4G (fourth generation) mobile connection. The tablet shows the driver's list of deliveries for the day.
Explain two reasons why a 4G connection is suitable for the drivers.
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A town council puts security cameras on lamp posts in the town centre. Each camera sends live video to a control room using wireless communication.
Explain two drawbacks of using wireless communication for the cameras.
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Which one of these is an example of a local area network (LAN)?
Computers and printers in one school building that are connected together
A smartwatch that sends data to its owner's smartphone
A bank's network that links its offices in several countries
Two smartphones that share a photo when they are tapped together
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Describe what is meant by a local area network (LAN).
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Which one of these statements about a wide area network (WAN) is true?
It can only connect devices that are inside one building
It usually uses communication links owned by other companies
It connects the devices that one person carries or wears
It must only use wireless connections
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A supermarket chain has shops in many cities. Its WAN connects the LANs in all of its shops using communication links owned by a telecommunications company.
Explain one reason why the chain uses links owned by a telecommunications company.
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State one common use of infra-red (IR) communication in the home.
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A college has a local area network (LAN) at its main campus. It opens a second campus in a town 40 km away, which also has a LAN. The college plans to connect the two LANs with a wide area network (WAN).
Explain two benefits to the college of connecting the two campuses with a WAN.
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Ari's games console comes with a controller. The controller sends commands to the console using infra-red (IR).
Explain one drawback of using IR rather than Bluetooth for the controller.
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Rosa has a smartphone.
Give two examples of devices Rosa could connect to the smartphone in a personal area network (PAN).
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A company makes remote controls for televisions. The remote controls use infra-red (IR) to send commands to the television.
Explain two reasons why IR is suitable for this use.
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Mei connects wireless earbuds and a smartwatch to a smartphone in a personal area network (PAN). A PAN has a very short range.
Explain one benefit to Mei of the PAN having a very short range.
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Ayo runs long-distance races. During a race, Ayo carries a smartphone and wears a smartwatch, a heart-rate chest strap and earphones. All of these devices are connected in a personal area network (PAN).
Explain two reasons why a PAN is suitable for connecting Ayo's devices during a race.
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Which one of these is an example of tethering?
A desktop computer connects to a router with a network cable
A smartwatch sends heart-rate data to a smartphone
A laptop goes online using a smartphone's mobile broadband connection
A tablet joins a home Wi-Fi network to use the home broadband
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Hana tethers a laptop to a smartphone to use the internet while travelling.
Explain one drawback of tethering for Hana.
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Sam is a sales representative who often works on trains between cities. Sam's laptop can connect to Wi-Fi but has no mobile broadband of its own. Sam's smartphone has a mobile broadband contract.
Explain two reasons why tethering the laptop to the smartphone is a suitable way for Sam to get online while travelling.
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Give two uses of near-field communication (NFC) on a smartphone.
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Explain one reason why near-field communication (NFC) is not a suitable way to send a large video file from one smartphone to another.
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A city bus company lets passengers pay their fare with a smartphone as they get on the bus. The card reader on the bus uses near-field communication (NFC).
Explain two reasons why NFC is suitable for this use.
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