CWNP certification

　
　
Exam : CENP PW0-100
Title : certified wireless network administrator(cwna)


1. What factors affect the propagation distance of an RF signal?
A. Antenna gain
B. Receiving station sensitivity
C. Fresnel zone blockage
D. Power over Ethernet (PoE) usage
E. Antenna polarization
F. Link budget calculations
Answer: AC

2. Given: XYZ Corporation is experiencing connectivity problems with their existing building-to-building bridge link. A brick wall on the roof of one building is partially blocking the Fresnel Zone, and the connection is dropping many frames. The administrator moves the antenna to an area not obstructed by the brick wall and then realizes the RF cable cannot reach the new location.
If an RF extension cable is used, what are the likely results?
A. The data throughput rate will increase because VSWR will decrease.
B. The Equivalent Isotropically Radiated Power (EIRP) will decrease.
C. The antenna coverage area will decrease.
D. The return loss will increase unless the impedance of the RF extension cable is equal to 50% of the antenna impedance.
E. The likelihood of a direct lightning strike will increase, placing the entire WLAN system at risk.
Answer: BC

3. In a long-distance RF link, what statement about Fade Margin is true?
A. Fade Margin is the amount of signal strength in addition to the Link Budget.
B. The Fade Margin of a long-distance RF link does not account for antenna gain.
C. Fade Margin is rarely taken into account on a long-distance RF link.
D. Fade Margin and Jamming Margin are synonymous, interchangeable terms.
Answer: A

4. While working on a presentation document in a conference room equipped with a wireless network, you notice that, as you turn your laptop in different directions, your wireless signal strength changes. What RF signal property is primarily responsible for this change in signal strength?
A. The RF signal's amplitude is changing due to a change in the visual line-of-sight.
B. The RF signal's wavelength is being affected by varying antenna gain.
C. The RF signal's multipath is changing the amount of RF absorbed by nearby objects.
D. The RF signal's phase is oscillating due to electromagnetic interference (EMI).
E. The RF signal's polarization is different than the receiving antenna.
Answer: E

5. Which units of measure are used to describe a calculable power quantity?
A. dB
B. dBm
C. dBi
D. mW
E. RSSI
F. dBd
Answer: BD

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