Pass the CWNP CWDP Wi-Fi Design CWDP-305 Questions and answers with ExamsMirror

Dynamic Frequency Selection (DFS) channels are shared with radar systems, such as those used in airports.Enabling DFS in such environments can lead to interference with radar operations and cause APs to frequently change channels, disrupting WLAN stability.Therefore, DFS channels should not be enabled in airport environments.

The CWDP-305 Official Study and Reference Guide advises against the use of DFS channels in areas where radar systems operate to prevent potential interference and ensure network reliability.

USB 3.0 interfaces are known to generate RF interference in the 2.4 GHz band due to the high-frequency noise emitted by the differential signaling in USB 3.0 cables and ports. This interference can reduce SNR, especially for devices located close to the USB port.

From CWDP-305:

“USB 3.0 cables and ports can emit broadband noise in the 2.4 GHz band, negatively impacting receive sensitivity and SNR. This can distort measurements during protocol analysis or performance testing.”

— Reference: CWDP-305 Official Study and Reference Guide, Chapter on ProtocolandSpectrum Analysis

Comprehensive and Detailed Explanation:

Per-user Pre-Shared Keys (PSKs) offer several advantages over a single PSK used across an entire Extended Service Set (ESS):

User-Based Access Control:Assigning unique PSKs to individual users allows for better tracking and control over network access.

Simplified Key Management:If a user's PSK is compromised or they leave the organization, only their key needs to be changed, not the entire network's.

Option C:Per-user PSKs are not a standard defined or certified by the Wi-Fi Alliance; they are an implementation choice.

Option D:Mutual authentication is a feature of WPA/WPA2-Enterprise using 802.1X, not of PSK-based systems.

Remote Authentication Dial-In User Service (RADIUS) is a networking protocol that provides centralized Authentication, Authorization, and Accounting (AAA) management for users who connect and use a network service.When integrating with an LDAP directory, RADIUS servers can authenticate users against the LDAP database before granting access to the WLAN infrastructure.

The CWDP-305 Official Study and Reference Guide notes:

"What service must be implemented on your customer's network to authenticate users against an LDAP database before granting access to the WLAN infrastructure? B. RADIUS"Pass4Success

Maximal Ratio Combining (MRC) is a technique used in MIMO (Multiple Input Multiple Output) systems to improve signal quality by combining multiple received signals. However, 1x1:1 client devices have only one transmit and one receive antenna, making them incapable of utilizing MRC, which requires multiple antennas to combine signals effectively.

The CWDP-305 Official Study and Reference Guide explains:CliffsNotes

"Features like Maximal Ratio Combining, which rely on multiple antennas, are not applicable to single-stream (1x1:1) client devices."

Comprehensive and Detailed Explanation:

For enterprises requiring high network uptime, it's crucial to design for redundancy and failover in both the wireless and wired components of the network. This includes:

Wireless and Wired Network Failover:Ensuring that both wireless access points and wired infrastructure have redundancy to prevent single points of failure.

Physical Aspects (Power and Cabling):Implementing redundant power supplies, uninterruptible power supplies (UPS), and proper cabling practices to maintain network availability during power outages or hardware failures.

In wired networks, VLANs (Virtual Local Area Networks) are used to segment network traffic into separate broadcast domains, effectively isolating traffic for security and performance purposes.Each VLAN operates as its own distinct network segment.

In wireless networks, while VLANs are used to segregate traffic once it reaches the wired infrastructure, the wireless medium itself is inherently a shared medium.This means that, over the air, all wireless clients share the same RF space, and broadcasts are received by all clients regardless of VLAN assignment.Therefore, VLANs in wireless networks do not inherently provide the same level of broadcast domain separation as in wired networks.

An active site survey involves connecting a client device to the WLAN and measuring various performance metrics such as throughput, latency, and roaming behavior. This type of survey is essential for validating that roaming is functioning as intended, as it allows the surveyor to observe the client's ability to maintain a stable connection while moving between access points.

Centralized forwarding in WLAN architectures means that all client traffic is tunneled back to a central controller for processing.This design simplifies management and can enhance security but places significant demand on the network's infrastructure.

To support the increased traffic load resulting from centralized forwarding, it's essential to havehigh-speed Ethernet links, such as Gigabit or higher, especially between access points, switches, and controllers.This ensures that the network can handle the aggregated traffic without becoming a bottleneck.

In environments with high-security restrictions, such as meat processing facilities, it's imperative to obtain the necessary access and clearance before conducting a site survey.This ensures compliance with security protocols and prevents unauthorized access to sensitive areas.

The CWDP-305 Official Study and Reference Guide emphasizes the importance of adhering to site-specific security requirements during site surveys.