For dBm, dB, dBi, which of the following descriptions are correct? (Multiple Choice)

• A.dBm: characterizing the absolute value of power
• B.dB: characterizing the relative value of power
• C.dBi and dBd: characterizing the relative value of the gain
• D.If A antenna is 12dBi and B antenna is 14dBi, it can be said that A is 2dBi smaller than B.

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What is the name of the first radio communication network based on packet technology?

• A.ALOHAnet
• B.NSFnet
• C.ARPANet
• D.INTERNET

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Commonly used RF cables for WLAN systems are (ABC) (Select 3 Answers).

• A.1/2" (inch) feeder
• B.RG-8 jumper
• C.13/8" (inch) feeder
• D.1/2" (inch) super soft feeder

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If the interface of the switch is enabled with PoE, only those POE powered devices can be connected to these interfaces.

• A.True
• B.False

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The naming of the "AP6010DN" is incorrect.

• A.AP in AP6010DN is the specific prefix of the AP of the enterprise network.
• B.AP6010DN "601" represents the standard indoor placement type 1st generation
• C.The "D" in the AP6010DN represents that the AP is a dual-band AP and supports the 2.4GHz and 5GHz bands.
• D."N" in AP6010DN means AP is an 802.11n AP.

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