eJPT Wireless Network Security 1

Question 1

Which wireless encryption protocol is considered completely broken due to its weak IV implementation and can be cracked within minutes?

Accepted Answer

WEP

Answer

WEP (Wired Equivalent Privacy) uses RC4 with 24-bit IVs that repeat frequently, allowing statistical attacks to recover the key in minutes.

Question 2

What type of wireless attack creates a fake access point with the same SSID as a legitimate network to intercept client traffic?

Accepted Answer

Evil Twin attack

Answer

An Evil Twin attack sets up a rogue AP mimicking a legitimate SSID to lure clients into connecting through the attacker.

Question 3

Which 802.11 management frame type is commonly spoofed to forcibly disconnect wireless clients from an access point?

Accepted Answer

Deauthentication frame

Answer

Deauthentication frames are unauthenticated 802.11 management frames, making them trivially spoofable to kick clients off a network.

Question 4

Which wireless security protocol introduced mandatory AES-CCMP encryption and replaced the original WPA standard?

Accepted Answer

WPA2

Answer

WPA2 (IEEE 802.11i) mandated AES-CCMP encryption, replacing the weaker TKIP used in WPA and significantly improving security.

Question 5

What is the primary purpose of the WPA2 4-way handshake?

Accepted Answer

To verify the PSK and derive per-session encryption keys between client and AP

Answer

The 4-way handshake confirms both parties know the Pre-Shared Key and derives the Pairwise Transient Key (PTK) used to encrypt session traffic.

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