CWDP-302 Certified Wireless Design Professional Exam Set 2

Which definition correctly describes the “local MAC” variation of the centralized WLAN architecture?   


Options are :

  • The AP provides the RF termination point for the WLAN, but performs very few of the WLAN functions or services. The WLAN controller performs all MAC functions and the AP is very simple and lightweight.
  • All MAC functions are performed by the AP. A minimal subset of network control is offloaded to the WLAN controller along with management and monitoring functions.
  • PHY functions are performed directly by the AP. MAC functions are divided almost equally between the WLAN controller and the AP, according to the time sensitivity of the feature or service.
  • All RF-, data-, and control-related WLAN functions are performed by the AP. APs coordinate network services with one another and are managed by a WNMS, so no WLAN controller is used in this architecture.

Answer : All MAC functions are performed by the AP. A minimal subset of network control is offloaded to the WLAN controller along with management and monitoring functions.

In a manufacturing facility with highly reflective materials, you are planning an upgrade to your existing 802.11b WLAN implementation. You have chosen a dual-band 802.11n infrastructure product for this purpose. Your client applications include:

Handheld scanners — for inventory management

Toughbooks (laptops) — mounted on forklifts for inventory and workflow management

VoWiFi phones — used by select employees throughout the facility

You are evaluating all of the 802.11n enhancements and determining which features to enable for your environment and applications.

In this scenario, what 802.11n enhancement typically should NOT be enabled on the 2.4 GHz radio of the new APs?   


Options are :

  • Frame aggregation
  • Short guard intervals
  • Block Acknowledgments
  • Multiple streams

Answer : Short guard intervals

As you plan a WLAN upgrade, you have assessed the network requirements and data signatures of your applications. One of the popular applications used on your network requires high bandwidth and low to medium Wi-Fi loss, but can tolerate moderate latency and jitter.   

What application matches this description? 


Options are :

  • Voice
  • Video-on-demand
  • Email
  • Skype chat

Answer : Video-on-demand

CWDP-302 Certified Wireless Design Professional Exam Set 3

When implementing WLAN security according to common best practices, what feature should be enabled when configuring an EAP type? 


Options are :

  • The “Use WEP if RADIUS server unavailable” option
  • The “Validate server certificate” option
  • The “Do not prompt user to authorize new servers or trusted certification authorities” option
  • The “Trusted Root Certification Authorities” list

Answer : The “Validate server certificate” option

What VoWiFi implementations frequently require multicast packet delivery support by the WLAN infrastructure? 


Options are :

  • Push-to-Talk VoWiFi phones
  • All VoWiFi soft phones
  • All VoWiFi implementations
  • All VoWiFi hard phones

Answer : Push-to-Talk VoWiFi phones

Which one of the following is an essential metric to measure when performing a survey and design for VoIP across WLANs? 


Options are :

  • Latency
  • PoE provided to wireless handsets
  • Throughput rates above 50 Mbps
  • Data rates above 100 Mbps

Answer : Latency

CWDP-302 Certified Wireless Design Professional Exam Set 4

One of your customers plans on providing wireless coverage to a warehouse facility. After performing an initial walkthrough, you collect the following information:

The central part of the warehouse is between 400 and 600 feet (122 to 183 meters) from the       warehouse switches mounted on the walls.

The warehouse storage is composed of metallic racks with varying inventory levels and contents, from electronics and plastic toys to food pallets and juice bottles.

Workers need basic data coverage from their working location, and are not highly mobile. They usually work from one single aisle, and their laptop is on a cart with wheels.

What would be your one recommendation to provide coverage to the central area of the warehouse?   


Options are :

  • In this case, extend the cable length just beyond 328 feet (100 m) and position APs as close as possible to the central area of the warehouse.
  • Install APs for client access in the central area and use a mesh backhaul link to connect to the DS.
  • Position APs along the walls, and equip the APs with Yagi antennas to cover the central area
  • Equip workers laptops with a directional antenna and install APs less than 328 feet (100m) away from the switch.

Answer : Install APs for client access in the central area and use a mesh backhaul link to connect to the DS.

What is the DSCP Per Hop Behavior equivalent classification of the 802.11 AC_VO priority level? 


Options are :

  • AF31
  • EF
  • CS3
  • VO

Answer : EF

When a WLAN controller sends an 802.11 frame to a lightweight AP for transmission on the wireless medium, how does it mark the frame for 802.11 QoS priority? 


Options are :

  • The WLAN controller does not mark 802.11 frames with priority values only the APs can do this
  • The WLAN controller does not mark the 802.11 frames with priority values only the Layer 3 routers can do this.
  • The WLAN controller will place the user priority (UP) value in the QoS Control field of the 802.11 frame header before passing it to the lightweight AP.
  • The WLAN controller does not mark the 802.11 frames with priority values only the Layer 3 switches can do this.

Answer : The WLAN controller will place the user priority (UP) value in the QoS Control field of the 802.11 frame header before passing it to the lightweight AP.

CWDP-302 Certified Wireless Design Professional Exam Set 5

When deploying long-distance 802.11 bridge links (10 miles / 16 km), what parameter may be critical for improving data flow by reducing retries caused by the long distances? 


Options are :

  • The sequence control field value
  • The CTS-to-self threshold
  • None of the Above
  • The acknowledgement timeout threshold
  • The minimum transmit data rate value

Answer : The acknowledgement timeout threshold

When Kerberos is used as an authentication protocol, what network service is essential for authentication to succeed assuming the appropriate credentials are provided? 


Options are :

  • FTPS
  • TFTP
  • NTP
  • SFTP

Answer : FTPS

CWDP-302 Certified Wireless Professional Practice Exam Set 1

Which one of the following is the most effective way to determine if radar will force APs away from DFS channels? 


Options are :

  • View the AP logs looking for DFS events.
  • Use a protocol analyzer looking for radar.
  • Use a spectrum analyzer looking for radar.
  • View the wired router logs looking for DFS events.

Answer : Use a spectrum analyzer looking for radar.

Which one of the following devices are least likely to cause interference for multiple clients of an 802.11 WLAN? 


Options are :

  • Wireless HD video connection
  • Cellular network mobile hotspots
  • Wireless video camera
  • Bluetooth headset

Answer : Cellular network mobile hotspots

As part of the design for a large WLAN that will include hundreds of APs operating in both 2.4 GHz and 5 GHz bands, you are changing AP settings so that APs on the same channel are spaced significantly far apart such that they have lessened impact on each other’s BSAs. What common WLAN program are you attempting to diminish?   


Options are :

  • Bluetooth interface
  • CCI
  • ACI
  • Incorrect security settings

Answer : CCI

CWDP-302 Certified Wireless Professional Practice Exam Set 2

You have implemented a WLAN that uses a dedicated server to determine which connecting clients are actually allowed to access the network. With this server, even when clients authenticate successfully, they may be disallowed network access based on missing configuration settings, security software or other characteristics.

What kind of server is in use that provides such capabilities?   


Options are :

  • EWG
  • DHCP
  • NAC
  • NTP

Answer : NAC

All of the APs in the WLAN you have designed are using the same RF channel. You plan to add a VoIP network in the future that will include several more APs that all use the same RF channel, but different from the existing WLAN design.

What model is certainly in use? 


Options are :

  • SCA
  • Autonomous
  • Cloud-based
  • MCA

Answer : SCA

When planning for a VoIP WLAN installation, what metric is important and is often dealt with using buffers?   


Options are :

  • Delay
  • Latency
  • Jitter
  • RTT

Answer : Jitter

ABC, Inc. has chosen a WLAN solution that implements a controller-based architecture. The APs will discover the controller using DHCP, broadcast messages, DNS resolution or some other proprietary method. During operation, what protocol is likely to be used for the communications between the APs and the controllers?   


Options are :

  • IPSec
  • PPTP
  • L2TP
  • LWAPP

Answer : LWAPP



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