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Difficulty: EasyWireless Security and Authentication

A IT support specialist is reviewing wireless security protocols and authentication mechanisms for an upcoming network refresh. Match each wireless security term on the left with its corresponding operational definition or characteristic on the right.

  • WPA3-PersonalUses Simultaneous Authentication of Equals (SAE) to protect preshared passphrase authentication against offline dictionary attacks.
  • 802.1X / RADIUSProvides enterprise-level authentication by passing credentials to a centralized server before granting network access.
  • WEPLegacy security protocol using RC4 with a weak 24-bit Initialization Vector (IV), making it trivial to crack.
  • TKIPInterim encryption protocol introduced with original WPA to dynamically change keys on a per-packet basis.

Answer

WPA3-Personal matches SAE protection against dictionary attacks; 802.1X / RADIUS matches enterprise authentication via a central server; WEP matches legacy protocol with weak 24-bit IV; TKIP matches interim per-packet key rotation protocol.
Each wireless protocol is correctly paired to its cryptographic or authentication mechanism: WPA3-Personal utilizes SAE to protect against dictionary attacks; 802.1X with RADIUS provides centralized enterprise access management; WEP is defined by its vulnerable 24-bit IV; and TKIP dynamically changes encryption keys per packet to fix initial WEP flaws.

Step-by-Step Solution

1
Identify the key technology feature of WPA3-Personal.
Recognize that WPA3-Personal introduces SAE (Simultaneous Authentication of Equals) to secure passphrases.
SAE prevents dictionary attacks even when weak passwords are chosen.
2
Identify the primary function of 802.1X / RADIUS.
Associate 802.1X with enterprise access control reliant on a centralized RADIUS authentication server.
Enterprise networks require unique user credentials validated by a central server rather than a shared passphrase.
3
Differentiate between legacy encryption protocols WEP and TKIP.
Identify WEP as the older 24-bit IV flawed protocol and TKIP as the dynamic per-packet key replacement introduced with WPA.
Understanding legacy protocol flaws is essential for migration and network security assessment.

Key Concept

Wireless Security Protocols and Authentication Mechanisms
Estimated Time:1m 0s
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Topics

Wireless Security and Authentication

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