Online Access Free H12-311_V3.0 Practice Test

The gain of the antenna can be explained ().

• A.The antenna's ability to collect or emit electromagnetic waves in a certain direction is strong or weak
• B.Antenna's ability to amplify high-frequency electrical signals
• C.Ability to amplify electromagnetic waves
• D.The antenna's ability to collect or emit electromagnetic waves in all directions is strong or weak

dBm is a unit for measuring signal strength, and this can be converted into a value in mW. Which of the following unit conversions are true?

• A.10 dBm = 20 mW
• B.3 dBm = 2 mW
• C.3 dBm = 3 mW
• D.0 dBm = 1 mW

802.11g What is the bandwidth of each channel of the frequency band ()?

• A.25 MHz
• B.50 MHz
• C.20 MHz
• D.22 MHz

Which modulation method is the picture below ()?

• A.FM
• B.AM
• C.Wave modulation
• D.phase modulation

CAPWAP The agreement is made by IEEE Standards organization in 2009 year 4 One of the month WLAN Standard for AC And thin AP Communication between.

• A.True
• B.False