Wireless Networks

Question 1

Light Fidelity (Li-Fi)

Answer 1

A form of wireless communication technology that relies on light to transmit data, with theoretical speeds up to 224Gbits/sec

Question 2

Bluetooth

Answer 2

Wireless personal area network, IEEE 802.15. An open standard for short range RF communication used primary with wireless personal area networks (WPANs)

Question 3

Bluetooth Secure Guidelines

Answer 3

Use Bluetooth only for non-confidential activities
Change default PIN
Turn off discovery mode
Turn off Bluetooth when not in active use

Question 4

Wi-Fi

Answer 4

Wireless LAN IEEE802.11x
Associated with computer networking. Uses 802.11x spec to create a public or private wireless LAN

Question 5

Wired Equivalent Privacy (WEP)

Answer 5

Defined by original IEEE 802.11 standard. Uses a predefined shared Rivest Cipher 4 (RC4) secret key for both authentication and encryption.
Shared key is static. Is weak from RC4 flaws

Question 6

Wi-Fi Protected Access II (WPA2)

Answer 6

IEEE 802.11i WPA2 replaced WEP and WPA
Uses AES-CCMP(Counter Mode with Cipher Block Chaining Message Authentication Code Protocol

Question 7

Wi-Fi Protected Access 3 (WPA3)

Answer 7

WPA3-ENT uses 192 bit AES CCMP encryption
WPA3-PER remains at 128 bit AES CCMP
WPA3 SAE (simultaneous authentication of equals) mode improves on WPA2’s PSK mode by allowing for secure authentication between clients and wireless network without enterprise user accounts

Question 8

802.1X/EAP

Answer 8

is a standard port based network access control that ensures that clients cannot communicate with a resource until proper authentication has taken place

Question 9

Lightweight Extensible Authentication Protocol (LEAP)

Answer 9

Cisco Proprietary alternative to TKIP for WPA. Developed to address deficiencies in TKIP before the 802.11i/WPA2 system was ratified as a standard.
Avoid using LEAP use EAP-TLS as an alternative. If you must use LEAP use a complex password.

Question 10

Protected Extensible Authentication Protocol (PEAP)

Answer 10

Encapsulates EAP methods within a TLS tunnel that provides authentication and potentially encryption.

Question 11

Extensible Authentication Protocol (EAP)

Answer 11

An authentication framework. Allows for new authentication technologies to be compatible with existing wireless or point to point connection technologies.

Question 12

Zigbee

Answer 12

short range wireless PAN technology developed to support automation, machine to machine communication, remote control and monitoring of IoT devices
Supports both centralized and distributed security models, and mesh topology.
Assumes that symmetric keys used are transmitted securely (encrypted in transit)

Question 13

Satellite

Answer 13

Primary uses radio waves between terrestrial locations and an orbiting artificial satellite.
Supports telephone, tv, radio, internet, military communications