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

Active remote units with fiber backhaul

Answer

Ethernet switches and PoE injectors

Answer

Multimode fiber with optical amplifiers

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 22

Answer

FCC Part 90

Answer

FCC Part 101

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

To physically measure actual signal levels in the finished space

Answer

To test PoE power delivery from the network switches

Answer

To verify cable continuity in the horizontal cabling plant

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

Deploying all APs on the same channel

Answer

Increasing transmit power on all access points

Answer

Using channels 2, 5, and 8 for non-overlapping operation

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

Multiuser telecommunications outlet assembly (MUTOA)

Answer

Consolidation point (CP)

Answer

Zone distribution frame (ZDF)

Question 6

An active DAS differs from a passive DAS primarily because active DAS uses:

Accepted Answer

Remote units that amplify and regenerate the RF signal

Answer

Only coaxial cable for signal distribution

Answer

A single omnidirectional antenna for the entire building

Answer

Unlicensed spectrum exclusively

Question 7

What BICSI-recommended metric defines the minimum acceptable signal strength (RSSI) for voice-grade Wi-Fi calling applications in an enterprise wireless design?

Accepted Answer

-67 dBm

Answer

-80 dBm

Answer

-70 dBm

Answer

-55 dBm