Wi-Fi Radio Frequency Bands and Channels

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Why are there different channels available within the 2.4 GHz and 5 GHz bands used in Wi-Fi technology?

To make it easier for devices to find available Wi-Fi networks.
To limit the number of devices that can connect to a Wi-Fi network.
To allow devices to communicate using slightly different frequencies and avoid interference. (correct)
To increase the speed of data transfer in Wi-Fi networks.

What is the significance of having multiple channels in the 2.4 GHz and 5 GHz bands of Wi-Fi technology?

To enable devices to communicate without any frequency differences.
To prevent signal interference by allowing devices to use different frequencies. (correct)
To increase the likelihood of signal interference between devices.
To reduce the range of Wi-Fi signals.

What determines the route that data packets take when sent across the internet?

The speed of the device sending the data packets.
The color of the cables through which the data packets pass.
The size of the data packets being sent.
The availability of routes. (correct)

What is the purpose of having a variety of protocols on the internet?

To ensure seamless communication between different devices and networks. (A) Signup and view all the answers

What are MAC addresses and why are they essential in networking?

MAC addresses help identify network devices uniquely. (C) Signup and view all the answers

What are IP addresses and why are they crucial in networking?

IP addresses uniquely identify devices on a network for proper communication. (B) Signup and view all the answers

What is a disadvantage of using copper cables compared to fibre optic cables?

Copper cables transfer data much slower than fibre optic cables. (D) Signup and view all the answers

What type of signals are used to transport data through copper cables?

Electrical signals (D) Signup and view all the answers

Which type of cable is known for transferring data at the speed of light?

Fibre Optic cable (A) Signup and view all the answers

In Wi-Fi technology, which type of wave is used to transmit data?

Radio Waves (A) Signup and view all the answers

What does it mean when it is said that 'Wi-Fi is a standard'?

All Wi-Fi devices use the same standard technology allowing communication regardless of manufacturer. (C) Signup and view all the answers

Which frequencies are commonly used in Wi-Fi technology for communication?

2.4 GHz and 5 GHz bands (C) Signup and view all the answers

What is the primary purpose of a 'protocol' in the context of computer networking?

Ensuring all devices speak the same language for effective communication (C) Signup and view all the answers

Which component does a data packet in computer networking NOT typically contain?

An IP address of the source computer (C) Signup and view all the answers

Why is it important for all devices on the internet to adhere to the same set of protocols?

To allow effective communication between devices (C) Signup and view all the answers

What purpose does the 'return address' serve in a data packet?

Requests retransmission if packet is corrupted (B) Signup and view all the answers

In Wi-Fi technology, what is the significance of operating on different frequency bands like 2.4 GHz and 5 GHz?

Reducing interference and congestion in wireless networks (B) Signup and view all the answers

What is the role of channels in Wi-Fi technology?

Separating different communication streams to prevent interference (A) Signup and view all the answers