1.3.2 Wired and wireless networks, protocols and layers

With Wi-Fi devices, they must each be set to send and receive data on the same…

• MAC address
• Switch
• IP address
• Frequency

Which of the following is an advantage of Wi-Fi over wired networks?

• Higher bandwidth
• Much easier to extend the network for new devices
• Suffers from less interference
• More secure

Which of the following is an advantage of Wi-Fi over wired networks?

• Useful for networking hard to reach places
• Suffers from less interference
• Higher bandwidth
• More secure

A 'channel' is a…

• Part of the Ethernet standard of networking
• Convenient numbering system for frequencies used by Wi-Fi
• Particular route that a packet takes on a network
• A protocol used in wired networks

Which of the following is not an advantage of wired networks over Wi-Fi?

• More secure
• Suffers from less interference
• Requires physical connection to the network
• Higher bandwidth

What is encryption in the context of Wi-Fi?

• Preventing malware being installed on a server
• A standard for local area networking
• Having additional redundancy to protect against faults
• Encoding readable data into unreadable data

What is Wi-Fi?

• A method to allow devices to communicate via cables
• A method to secure wired communications
• A technology to encrypt wireless communications
• A technology to allow devices to communicate wirelessly

What does an Ethernet frame contain?

• Source and destination address, the data and encryption key
• The sequence number, the data and session identifier
• The sequence number, the data and error checking bits
• Source and destination address, the data and error checking bits

Systems using Ethernet divide a stream of data into shorter pieces called…

• Packets
• Parcels
• Bundles
• Frames

Which statement best describes 'Ethernet'?

• Data transmitted in packets on a local area network
• Data transmitted in frames on a wide area network
• Data transmitted in packets on a wide area network
• Data transmitted in frames on a local area network