Lesson Summary: Fill in the Blanks

To connect devices in a LAN, we can use wired connections like Select... Ethernet Bluetooth Wi-Fi , which often use copper or Select... plastic radio fibre optic cables. These provide high Select... latency bandwidth interference and are very secure because a hacker needs physical access to intercept the data.

Alternatively, we can use wireless connections like Select... Wi-Fi Ethernet Fibre for local networking or Select... Bluetooth Ethernet Broadband for pairing personal devices over very short distances. Wireless connections offer greater Select... security portability bandwidth but are more prone to Select... encryption speed interference from walls or other electronic waves.

Because wireless data is broadcast through the air, it must be protected using Select... encryption interception cables . This mathematical algorithm uses a secret Select... lock key password to turn readable Select... ciphertext plaintext binary into unreadable Select... ciphertext plaintext source code .