CWNA Risk Assessment & Management 3

Question 1

During a risk analysis, an organization determines its wireless infrastructure has an Asset Value of $200,000 and an Exposure Factor of 40% for a flood threat. What is the SLE?

Accepted Answer

$80,000

Answer

SLE = Asset Value × Exposure Factor = $200,000 × 0.40 = $80,000.

Question 2

A CWNA candidate is reviewing threats to a wireless network. Which threat specifically exploits the 802.11 management frame vulnerability to disconnect legitimate clients?

Accepted Answer

Deauthentication flood attack

Answer

A deauthentication flood attack sends spoofed management frames to force clients to disconnect, exploiting the lack of authentication in 802.11 management frames prior to 802.11w.

Question 3

An annual risk review shows that a previously identified medium risk has escalated to high due to a new threat actor. What document should be updated to reflect this change?

Accepted Answer

Risk register

Answer

The risk register is the living document that tracks identified risks, their ratings, owners, and status, and must be updated whenever risk levels change.

Question 4

A wireless network administrator is tasked with assessing the risk of using WEP on a legacy manufacturing device that cannot be upgraded. Which risk treatment is most appropriate?

Accepted Answer

Risk mitigation by isolating the device on a separate VLAN with firewall rules

Answer

Network segmentation isolates the vulnerable device, limiting the blast radius of a potential WEP compromise while allowing the legacy device to remain operational.

Question 5

Which 802.11 amendment introduced Management Frame Protection (MFP) to mitigate deauthentication and disassociation attacks?

Accepted Answer

802.11w

Answer

IEEE 802.11w (Protected Management Frames) added cryptographic protection for management frames, preventing spoofed deauthentication attacks.

CWNA - Wireless Network Administrator Practice Test

CWNA - Wireless Network Administrator Practice Test

CWNA Risk Assessment & Management 3