CWNP CWDP-305 - Certified Wireless Design Professional

Confidentiality is a core principle of information security that involves keeping data hidden or inaccessible from unauthorized users. In the context of WLANs, confidentiality is maintained through encryption protocols such as WPA2/WPA3, which ensure that even if a data transmission is intercepted, its contents remain unreadable to unintended receivers.

From the CWDP-305 Study Guide, confidentiality is defined as:

“The protection of transmitted data from unauthorized disclosure. This is typically accomplished through encryption methods that obscure the original content, ensuring that intercepted packets cannot be deciphered by unintended recipients.”

Other security terms like authentication (verifying identity), integrity (ensuring data is not altered), and nonrepudiation (assurance of origin) are also important but pertain to different aspects of data protection.

— Reference: CWDP-305 Official Study and Reference Guide, Chapter on Wireless Design Process

In stadium environments where aesthetics are crucial, installing APs in enclosures under seats or on handrails is a common practice.This approach conceals the APs, maintaining the venue's visual appeal while ensuring optimal wireless coverage.

The CWDP-305 Official Study and Reference Guide discusses the importance of aesthetic considerations in WLAN design and recommends discreet installation methods in public venues like stadiums.

A Non-Disclosure Agreement (NDA) is a legal contract that establishes a confidential relationship between parties. In the context of WLAN design, it ensures that any proprietary information shared by the customer during the information-gathering phase remains confidential and is not disclosed to unauthorized parties.

Non Disclosure Agreements

The Statement of Work (SoW) outlines the tasks and deliverables of the project but does not address confidentiality.

The Bill of Materials (BoM) lists the required components for the project but does not pertain to information protection.

A Hold Harmless agreement typically pertains to liability and indemnification, not confidentiality.

When conducting a predictive site survey, it's essential to configure the simulated APs to reflect the expected real-world conditions.If dynamic Radio Resource Management (RRM) will be utilized, setting the AP transmit power to an estimated average level that matches the expected client devices, such as 25 mW, ensures that the predictive model accurately represents the operational environment.This approach helps in designing a WLAN that provides optimal coverage and performance.

The Physical Installation Guide is developed during the design phase and delivered to the installation team. It contains detailed AP locations (including mounting heights and orientations), cabling instructions, hardware installation standards, and any specific AP configuration notes needed during physical deployment.

From CWDP-305:

“A Physical Installation Guide provides specific instructions to installers, such as mounting height, orientation, and any environmental considerations. This ensures that APs are installed correctly and according to the design.”

— Reference: CWDP-305 Official Study and Reference Guide, Chapter on Wireless Design Process

A specification sheet (spec sheet) provides detailed technical capabilities of a device, including supported Wi-Fi standards (e.g., 802.11a/b/g/n/ac/ax), number of spatial streams, band support, and security protocols. This helps WLAN designers understand performance expectations and compatibility.

From CWDP-305:

“Specification sheets are critical for evaluating client capabilities. They include information about supported frequency bands, maximum data rates, MIMO capabilities, and supported security protocols.”

— Reference: CWDP-305 Official Study and Reference Guide, Chapter on Wireless Design Process

In the context of wireless network design, documentation is typically divided into two primary categories: High-Level Design (HLD) and Low-Level Design (LLD).

High-Level Design (HLD):Provides an overview of the network architecture, including major components and their relationships. It focuses on the overall design without delving into specific configurations.

Low-Level Design (LLD):Offers detailed information about the network, including specific configurations, IP addressing schemes, VLAN assignments, and device roles.

When documenting VLANs, the LLD should include a table that specifies which devices perform routing services for each VLAN. This level of detail ensures that during implementation, network engineers have clear guidance on how to configure each device to handle inter-VLAN routing appropriately.

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

In Wi-Fi networks, Quality of Service (QoS) is managed through the Wi-Fi Multimedia (WMM) specification, which categorizes traffic into four Access Categories (ACs):

AC_VO (Voice)

AC_VI (Video)

AC_BE (Best Effort)

AC_BK (Background)

Voice traffic is highly sensitive to latency and jitter, requiring the highest priority to ensure call quality. Therefore, voice frames should be mapped to theAC_VOcategory.

The CWDP-305 Official Study and Reference Guide emphasizes:

"Voice traffic should be assigned to the AC_VO category to ensure the highest priority and minimal latency."

Conducting a site survey in environments such as heavy machinery repair facilities involves potential hazards, including moving equipment, loud noises, and other safety risks.Therefore, wearing Personal Protective Equipment (PPE) is essential to ensure the safety of the surveyor.

The CWDP-305 Official Study and Reference Guide advises:

"When performing site surveys in industrial or hazardous environments, always adhere to safety protocols, including the use of appropriate Personal Protective Equipment (PPE) such as hard hats, safety glasses, and steel-toed boots."

This ensures that the survey is conducted safely and complies with occupational health and safety regulations.