Pass the CWNP CWSP CWSP-208 Questions and answers with ValidTests

TKIP (Temporal Key Integrity Protocol) was introduced with WPA to enhance WEP security. One of the security mechanisms used in TKIP is a per-MPDU (MAC Protocol Data Unit) sequence counter called the TSC (TKIP Sequence Counter). The TSC acts as a form of replay protection by assigning a unique sequence number to each transmitted frame. If a packet is received with a sequence number lower than or equal to a previously received number, it is discarded. This directly prevents replay attacks, where a malicious actor resends previously captured frames in an attempt to spoof the session or extract data.

Clients seek connectivity when their connection is lost. If the attacker broadcasts a matching SSID on a different channel and the client is disconnected (via RF jamming or deauthentication), the client will often reassociate with the stronger signal or first-responding AP broadcasting the same SSID, even if it's rogue.

Incorrect:

A. SNR alone doesn't force reassociation—clients consider multiple factors.

B. SSID priority is not a standardized field influencing client behavior.

D. Clients won’t reassociate based purely on advertised data rates unless connectivity is disrupted and other AP parameters are more attractive.

Wireless Intrusion Prevention Systems (WIPS) are excellent for detecting on-air threats such as rogue APs, DoS attacks, spoofing, and misconfigured devices. However, WIPS cannot detect:

C. Eavesdropping — Passive listening on wireless transmissions cannot be detected because no signal is transmitted by the attacker.

D. Social engineering — Human-based attacks like phishing or pretexting fall outside the scope of wireless monitoring.

Incorrect:

A. Rogue APs can be detected via MAC address comparison, frame analysis, and signal triangulation.

B. DoS attacks, such as deauth floods or RF jamming, can be detected with appropriate WIPS sensors.

Endpoint security software can:

A. Enforce network access policies by validating that security settings meet organizational standards.

B. Monitor usage for auditing and threat detection.

C. Limit network connectivity based on SSID names, encryption, and authentication parameters.

Incorrect:

D. Detecting rogue APs and clients is typically done by WIPS, not endpoint security agents.

Developing a robust WLAN security policy requires buy-in from executive or senior management. Without management support, it’s difficult to enforce compliance, allocate resources, or prioritize security among other organizational objectives. This foundational step ensures that policy creation and enforcement are feasible and aligned with organizational goals.

Incorrect:

A. Device/vendor specifics are addressed later during implementation.

C. End-user training materials are created after the policy is finalized.

D. Security policy software can assist, but is not essential compared to management support.

Peer-to-peer blocking (also called client isolation) is useful in open or public WLANs to prevent devices from communicating directly with each other.

B. In public hot-spots, isolating users helps protect against malware spread, snooping, and attacks from nearby devices.

Incorrect:

A. In home networks, peer-to-peer communication is often desired for file sharing.

C. Voice over Wi-Fi may rely on peer communication (e.g., multicast).

D. In university setups using multicast, peer-to-peer restrictions could hinder functionality.

Wireless Intrusion Prevention Systems (WIPS) can proactively respond to detected threats using various techniques. One such preventative measure is integration with the wired infrastructure to mitigate rogue APs by disabling the switch port they are connected to. This is typically done through SNMP or other switch management interfaces.

This form of wired-side containment is more secure and compliant than wireless-side attacks (e.g., deauthentication), which can violate regulations in some jurisdictions.

PCI-DSS (Payment Card Industry Data Security Standard) applies to all entities that process, store, or transmit credit card data. Since Point-of-Sale (PoS) systems handle such transactions in retail environments, the wireless network supporting them must comply with PCI-DSS. This includes encrypting wireless transmissions, segmenting network traffic, and implementing WIPS for rogue detection and logging.

C. RF DoS attacks use signal jamming or interference to prevent communication.

D. Hijacking uses deauthentication and re-association to force users onto rogue APs.

E. Social engineering uses manipulation to acquire credentials or sensitive information.

Incorrect:

A. Management interface exploit attacks typically involve web or CLI interface vulnerabilities, not social engineering.

B. Zero-day attacks are based on unknown vulnerabilities, not just limited to authentication or encryption.

F. Association flood attacks occur at Layer 2, not Layer 3.

In environments where PSK-based authentication (like WPA2-Personal) is still in use due to legacy device constraints:

C. Regularly changing static passwords helps limit exposure from credential leaks or previous employees retaining access.

Incorrect:

A. MSCHAPv2 is vulnerable to offline attacks; recommending strong passwords is good, but that alone isn’t sufficient.

B. WEP is insecure regardless of password strength due to IV reuse.

D. Certificates are stronger, but not always feasible for legacy systems.

E. EAP-TLS is ideal but not always compatible with all devices; policies should be flexible to device capabilities.