Microwave transmission is used to send data between devices at different locations. Explain how microwaves are used to transmit data between devices. Describe four ways that microwave transmission is used in communication systems.

9626_m22_qp_32

THEORY

2022

Paper 3, Variant 2

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Near Field Communication (NFC) is a communication method. Describe how NFC can be used by mobile devices.

9626_m24_qp_32

THEORY

2024

Paper 3, Variant 2

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Bluetooth and infrared can both be used to send data between devices. Contrast, by describing the differences between, the use of Bluetooth and the use of infrared for transmitting data between devices.

9626_s21_qp_32

THEORY

2021

Paper 3, Variant 2

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Bluetooth and Wi-fi are wireless technologies used to exchange data between devices. Contrast Bluetooth with Wi-fi as methods of wireless communication. Describe how a Bluetooth connection is established between two devices.

9626_s23_qp_32

THEORY

2023

Paper 3, Variant 2

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Computer devices can connect to a local area network (LAN). Wi-Fi connections can only be used within range of a wireless access point (WAP). Explain why Wi-Fi connections to a WAP have a limited range. Explain how the connection range of Wi-Fi can be increased. Devices use ethernet technology to send data on cabled LANs. Explain why ethernet technology is used on LANs to send data.

9626_s24_qp_31

THEORY

2024

Paper 3, Variant 1

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Devices on a network can be connected by Wi-Fi. Describe how a Wi-Fi connection is used to transfer data between devices.

9626_s24_qp_32

THEORY

2024

Paper 3, Variant 2

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Computer devices can connect to a local area network (LAN). Wi-Fi connections can only be used within range of a wireless access point (WAP). Explain why Wi-Fi connections to a WAP have a limited range. Explain how the connection range of Wi-Fi can be increased. Devices use ethernet technology to send data on cabled LANs. Explain why ethernet technology is used on LANs to send data. ,

 
,

9626_s24_qp_33

THEORY

2024

Paper 3, Variant 3

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Evaluate the use of the infra-red method of data transmission in wireless communications.

9626_w18_qp_32

THEORY

2018

Paper 3, Variant 2

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Evaluate the use of Bluetooth® wireless technology for communication between devices.

9626_w18_qp_33

THEORY

2018

Paper 3, Variant 3

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Mobile devices can use Near Field Communication (NFC) and Bluetooth to exchange data. Describe three uses of NFC in mobile devices. Discuss the differences between NFC and Bluetooth when used for exchanging data between mobile devices.

9626_w22_qp_32

THEORY

2022

Paper 3, Variant 2

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