A.omnidirectional
B.patch
C.Yagi
D.sector
E.parabolic dish
您可能感興趣的試卷
你可能感興趣的試題
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
A.-65 dBm
B.-67 dBm
C.-69 dBm
D.-70 dBm
A.PNG
B.JPEG
C.GIF
D.BMP
E.PICT
F.TIFF
A.AIR-ANT3213
B.AIR-ANT2465P-R
C.AIR-ANT1949
D.AIR-ANT5160V-R
A.Bluetooth
B.frequency hopping
C.microwave oven
D.802.11b client card
E.802.11b access point
最新試題
What will cause wireless voice devices to perform poorly？（）
By how much is a signal’s strength reduced when the signal passes through an object thatintroduces 3 dB of attenuation？（）
What does a Cisco Unified Wireless IP Phone 7921G deployment require（）？
When planning for voice deployments with the Cisco Unified Wireless IP Phone 7921G handset in amultifloor building with a WLAN that operates at an 11 MB/s data rate， how many decibelsreferenced to 1 milliwatt of same-channel separation are recommended between floors？（）
Which three items does the Cisco WCS Planning Tool Generate Proposal Report provide？（）
A design requires 100 access points with high channel bandwidth and disabled lower data rates.How are the data rates set on the Cisco WLC and Cisco WCS？（）
Which antenna generally has the narrowest first Fresnel zone in both the horizontal and verticalplanes？（）
Cisco recommends a decibel referenced to 1 milliwatt signal level for the coverage cell edge at thepredetermined data rate that is needed to support the VoWLAN device and call capacityrequirements. What is that signal level value for Cisco Unified Wireless IP Phones 7920， 7921G， and7925G？（）
Which statement about active and passive surveys is incorrect？（）
Which three formats can be used to import floor maps in Cisco WCS v5.2？（）