Prof Messor Video Questions: Network Types and Wireless Encryption

Wireless Mesh Network

Network where multiple wireless nodes connect and communicate with each other to extend coverage

Self-Healing (Mesh Networks)

Ability of a mesh network to automatically reroute connections if one node fails or leaves

Ad Hoc (IBSS)

Wireless connection where devices communicate directly without an access point

802.11

IEEE standard used for Wi-Fi wireless networking

IoT Ad Hoc Setup

Temporary direct wireless connection used to configure a new IoT device

Point-to-Point Wireless

Wireless link connecting two distant locations such as two buildings

Infrastructure Mode

Most common wireless network mode where devices connect through an access point

Wireless Encryption

Security method used to protect wireless data from interception by nearby devices

Message Integrity Check (MIC)

Security feature that verifies received data has not been altered

WEP (Wired Equivalent Privacy)

Early wireless encryption standard later found to be insecure

WPA (Wi-Fi Protected Access)

Security protocol created as a temporary replacement for WEP

WPA Backward Compatibility

WPA was designed to work with older hardware that originally supported WEP

AES (Advanced Encryption Standard)

Encryption algorithm used by WPA2 for strong wireless security

CCMP (Counter Mode CBC-MAC Protocol)

WPA2 protocol that provides encryption and message integrity

WPA3

Wireless security standard introduced in 2018 with stronger protections

GCM (Galois/Counter Mode)

Block cipher mode used with WPA3 encryption