Which type of encryption could be used to establish a connection with a simple passkey...

Wireless encryption modes differ in how they authenticate clients:

WPA/WPA2 PSK (Pre-Shared Key): Uses a passphrase shared by all clients. No external authentication server (like RADIUS or 802.1X) is required. Simple and suitable for home or small networks.

WPA/WPA2 EAP: Uses 802.1X (Enterprise mode) and requires a centralized authentication server.

Option analysis:

A.✔Correct – Pre-Shared Key does not require 802.1X server

B.✘Incorrect – Requires EAP-based authentication with 802.1X infrastructure

Extract from Official MTCNA Course Material – Wireless Security:

“WPA PSK/WPA2 PSK uses a pre-shared password. WPA/WPA2 EAP requires 802.1X authentication with a RADIUS server.”

Extract from René Meneses MTCNA Study Guide – Wireless Encryption:

“To use a simple password for connecting wireless clients, select WPA2-PSK. It does not require server-based authentication.”

Extract from Terry Combs Notes – Wireless Security Profiles:

“WPA2 PSK = password-based; WPA2 EAP = 802.1X based. Use PSK for fast, simple authentication.”