RCDD Wireless Systems Design and Infrastructure

Question 1

According to ANSI/TIA-4965, what is the recommended maximum distance between wireless access point (WAP) mounting locations and the nearest telecommunications outlet in a distributed antenna or WAP deployment?

Accepted Answer

30 meters (100 ft)

Answer

15 meters (49 ft)

Answer

50 meters (164 ft)

Answer

100 meters (328 ft)

Question 2

Which IEEE standard defines Power over Ethernet (PoE) at a maximum of 15.4 watts of power delivered to a powered device (PD)?

Accepted Answer

IEEE 802.3af

Answer

IEEE 802.3at

Answer

IEEE 802.3bt

Answer

IEEE 802.3az

Question 3

When designing in-building wireless (IBW) systems, a Distributed Antenna System (DAS) is primarily used to:

Accepted Answer

Improve cellular and wireless coverage in areas with weak or no signal

Answer

Increase internet bandwidth by aggregating multiple ISP links

Answer

Replace structured cabling in telecommunications rooms

Answer

Reduce RF interference from neighboring access points

Question 4

In wireless LAN design, what term describes the overlapping coverage area between two adjacent access points, typically set at 15–20% overlap, to enable seamless roaming?

Accepted Answer

Cell overlap

Answer

Dead zone

Answer

RF handoff margin

Answer

Co-channel interference zone

Question 5

Which frequency band is most susceptible to absorption by walls and physical obstructions in an indoor wireless deployment?

Accepted Answer

5 GHz

Answer

900 MHz

Answer

2.4 GHz

Answer

6 GHz

Question 6

When documenting a wireless site survey for an RCDD project, which measurement is used to quantify the ratio of the desired signal strength to the background noise level?

Accepted Answer

SNR (Signal-to-Noise Ratio)

Answer

RSSI (Received Signal Strength Indicator)

Answer

EIRP (Effective Isotropic Radiated Power)

Answer

BER (Bit Error Rate)

Question 7

Per BICSI TDMM guidelines, what minimum cable category is recommended to support IEEE 802.3bt (Type 4, 90W) PoE for high-power WAP installations?

Accepted Answer

Category 6A

Answer

Category 5e

Answer

Category 6

Answer

Category 7