Certified Wireless Design Professional (CWDP-304) Free Practice Test

Question 1

A company wants to connect its headquarters to its remote office that is 13 kilometers away using a wireless bridge. What requirement must not be forgotten by their Wireless Engineer when considering the Fresnel Zone?

A. Receive sensitivity

B. FSPL

C. Antenna gain

D. Earth bulge

Correct Answer: D

Question 2

What should always be done before connecting an AP to the production network?
Response:

A. Reduction of output power.

B. Disabling SSID broadcasting.

C. Increase in output power.

D. Baseline configuration that prevents the introduction of security issues to the network on initial connection.

Correct Answer: D

Question 3

How are EAP messages transported over 802.11 wireless LANS?
Response:

A. EAPOL

B. EAP-Fast

C. PEAP

D. EAP_TLS

Correct Answer: A

Question 4

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?

A. Video-on-demand

B. Email

C. Skype chat

D. Voice

Correct Answer: B

Question 5

Switches and APs have already been chosen by your customer. All switches support 802.3bz MultiGig interfaces and APs are 4x4:4 802.11ac wave 2 capable of using dual-5GHz and have one MultiGig interface. Some cable drops for the APs will run for more than 180.5 feet (or 55 meters). To support MultiGig, what is the best choice of cabling?

A. Cat-6

B. Cat-5e

C. Cat-6a

D. Cat-5

Correct Answer: C

Question 6

ABC Company has a WLAN controller with 10 controller-based APs; the Voice SSID is configured for centralized data forwarding. Each AP is connected to an access port on a layer-2 Ethernet switch. Each layer-2 switch is uplinked to a single layer-3 core Ethernet switch. The WLAN controller is connected directly to the layer-3 core Ethernet switch. Layer-3 tunnels are created between all controller-based APs and the WLAN controller. A voice server is connected to the layer-3 Ethernet switch.
When a voice-enabled QoS STA sends an IP data packet to a voice server in this scenario, the DSCP value carried in the STA's IP data packet gets mapped to what and by which device?

A. The DSCP value is mapped to the DSCP value in the encapsulating IP header by the layer-3 switch.

B. The DSCP value is mapped to an IEEE 802.1p (802.1D-2004) UP value by the access point.

C. The DSCP value is mapped to an IEEE 802.1Q priority tag value by the WLAN controller.

D. The DSCP value is mapped to an IEEE 802.1Q VLAN tag by the access point.

Correct Answer: C

Question 7

You deployed an AP and installed its antenna, and you now need to set the AP transmit power. Given a desired EIRP of 21 dBm, and an antenna gain of 5.85 dBd connected through 25 feet of cable with a loss specification of 4 dB/100 feet.
Assuming that there is no significant loss from the connectors, what should be the transmit power level for this AP?

A. 20 mW

B. 14 mW

C. 10 mW

D. 25 mW

Correct Answer: D

Question 8

In the enterprise, when is WPA/WPA2-Personal generally a recommended solution?(Choose all that apply.) Response:

A. When mobile device applications require high-latency roaming times between APs

B. When client devices do not support 802.1X/EAP

C. When the network security policy demands that each user have unique access credentials

D. When client devices are provisioned in bulk and would otherwise share 802.1X credentials

Correct Answer: B,D

Question 9

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?

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

B. 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.

C. Equip workers laptops with a directional antenna and install APs less than 328 feet (100m) away from the switch.

D. Position APs along the walls, and equip the APs with Yagi antennas to cover the central area.

Correct Answer: B

Question 10

A high power radio system transmits at 40,000 Watts. What is this power in dBm? Solve this without a calculator.
Response:

A. 76 dBm

B. 46 dBm

C. 66 dBm

D. 56 dBm

Correct Answer: A

Question 11

Your customer requires a security solution in which client credentials are used and the authentication server must have a certificate with optional client certificate use. Which EAP method would be the best fit for their requirement?

A. EAP-FAST

B. EAP-TLS

C. EAP-TTLS

D. LEAP

Correct Answer: B

Question 12

What is the purpose of DHCP Option 43, and how is it used with WLANs?

A. It integrates a DHCP server with AAA servers and user databases to dynamically assign IP addresses to client devices. During 802.1X, the AAA server uses

B. It provides IP address bindings for specific network nodes that require long-term IP address assignments. WLAN controllers are configured to use Option 43 to receive long-term IP address leases that are centrally managed with DHCP.

C. It supports vendor-specific IP address attributes for node discovery purposes. APs use Option 43 with vendor class identifiers to obtain the IP address of a centralized WLAN controller.

D. It provides clients with a temporary IP address on a restricted VLAN until 802.1X authentication is completed. Then the client receives its long-term IP address.

Correct Answer: C

Question 13

You are creating an outdoor bridge link that spans more than 1000 yards. Which one of the following antenna types is more likely to be included in the design?

A. Omni

B. Panel

C. Yagi

D. Patch

Correct Answer: C

Question 14

A cable with 2.5 dB of loss is used to measure the return loss of an antenna. The measured value in-band is shown to be larger than 20 dB. What is the actual return loss of the antenna, and is it considered to be a reasonable value?
Response:

A. Larger than 17.5 dB and no

B. Larger than 15 dB and yes

C. Larger than 15 dB and maybe

D. Larger than 17.5 dB and yes

Correct Answer: B

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CWNP Certified Wireless Design Professional (CWDP-304) Free Practice Test