RCDD Wireless Systems Design and Infrastructure 2

Question 1

In a passive DAS (Distributed Antenna System) design, the signal is distributed from the head-end using:

Accepted Answer

Coaxial cable splitters and combiners

Answer

A passive DAS uses coaxial cable with passive RF splitters and combiners to distribute antenna signals without amplification at the remote antenna units.

Question 2

Which FCC regulation governs the maximum allowable EIRP (Effective Isotropic Radiated Power) for unlicensed 2.4 GHz 802.11 devices in the United States?

Accepted Answer

FCC Part 15

Answer

FCC Part 15 governs unlicensed intentional radiators including Wi-Fi devices operating in the 2.4 GHz and 5 GHz ISM/UNII bands.

Question 3

What is the primary purpose of performing a predictive RF site survey before installing a wireless LAN?

Accepted Answer

To model expected coverage and identify AP placement prior to installation

Answer

A predictive (passive) site survey uses RF modeling software to simulate coverage and capacity before installation, enabling optimal AP placement planning.

Question 4

In wireless system design, co-channel interference (CCI) is best mitigated in a 2.4 GHz 802.11 deployment by:

Accepted Answer

Using only channels 1, 6, and 11

Answer

Channels 1, 6, and 11 are the only three non-overlapping channels in the 2.4 GHz band, minimizing co-channel interference when used in adjacent cells.

Question 5

According to ANSI/TIA-4965, what type of outlet is used to serve a wireless access point location and provides both data connectivity and power?

Accepted Answer

WAP outlet with PoE-capable port

Answer

ANSI/TIA-4965 specifies that WAP locations be served by an outlet supporting PoE, providing both data and power to the access point through the structured cabling.

RCDD - Registered Communications Distribution Designer Practice Test

RCDD - Registered Communications Distribution Designer Practice Test

RCDD Wireless Systems Design and Infrastructure 2