CWDP-304 Online Practice Questions and Answers

What basic RF math formula should be used as a baseline to convert an RF value in units of dBm into a value of mW?

*Note: "dBm" in the formulas represents the known dBm value

A. 0 dBm = 1 mW

B. mW C.

C. mW mW

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

A. Throughput rates above 50 Mbps

B. Data rates above 100 Mbps

C. Latency

D. PoE provided to wireless handsets

Looking at a client radio specification sheet that states Receive Sensitivity of 82 dBm @ 18 Mbps would mean:

Response:

A. It would need to hear a signal <82 dBm in order to use the 24 Mbps PHY rate.

B. It is only capable of transmitting at 18 Mbps PHY rates at 82 dBm.

C. It must hear a signal >82 dBm in order to demodulate the 18 Mbps PHY rate.

D. It must hear a signal <82 dBm in order to demodulate the 18 Mbps PHY rate.

Given:

In your regulatory domain, a Tx Power Level of "1" is equivalent to 17 dBm.

For every integer increment (e.g. from 1 to 2) to the Tx Power Level, the APs transmit power is halved.

In units of mW, what is the actual transmit power for an AP configured at a Tx Power Level of "4"?

A. 6.25 mW

B. 50 mW

C. 12.5 mW

D. 8 mW

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

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

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

After importing a floor plan to a predictive design tool, what should be done prior to adding APs, antennas and attenuators (e.g., walls)?

A. Set the transmit power for all APs

B. Add pictures of the environment

C. Nothing; just begin by adding APs, antenna and attenuators

D. Calibrate the floor plan to increase accuracy

Your new customer is concerned about maintaining privacy for their proprietary information when you conduct information gathering for their WLAN design. Which document can you use to directly address their concern?

A. NDA

B. SoW

C. BoM

D. Hold Harmless

When installing APs on high ceilings, what should be the most common PPE to be used?

A. Hardhat, high visibility vest and body belt

B. Glasses, gloves and jacket

C. Clean suits, masks and glasses

D. Clean suits, gloves and jacket

When troubleshooting coverage issues for a wireless network as it appears to new client associations, you should perform which type of survey? Response:

A. Active survey

B. Passive survey

C. A survey is not necessary.

D. Predictive survey

What advantage provided by 802.11n and 802.11ac is not usable in 1X1:1 low-end client devices?

A. Channel bonding

B. MCS data rates

C. Maximal Ratio Combining

D. Mandatory data rates