多項選擇題Which two methods can be used to prevent or reduce RFI from colocated directional antennas()

A.Alternate polarization between colocated antennas
B.Cross-polarize antennas between endpoints
C.Install an RF-shielded box around the antennas
D.Increase the distance between the antennas


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4.多項選擇題Which three device types are identified by Cisco Spectrum Expert Wi-Fi finding an Avg PulseDuration parameter?()

A.Bluetooth
B.frequency hopping
C.microwave oven
D.802.11b client card
E.802.11b access point

5.多項選擇題In which three frequency bands does the Cisco Spectrum Expert Wi-Fi tool perform spectrumanalysis? ()

A.ISM 2.4 GHz
B.ISM 900 MHz
C.ISM 5 GHz
D.public safety 4.9 GHz
E.GSM 1.9 GHz

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