Which signal and noise values will result in the best phone communication with an access point?（）
第1题：
A. lower cost
B. higher chirp
C. easier to manufacture
D. higher dispersion tolerance
E. higher optical signal-to-noise ratio
第2题：
A.The received power on the resource elements that carry cell-specific reference signals
B.wideband power
C.N times the Reference Signal Received Power divided by the total received power in the channel bandwidth
D.Signal to Interference plus Noise Ratio
第3题：
The maximum data rate of any single wireless link can be described by the shannon’s theorem which is related to the（）in hertz，and the（）on the channel
A．signal frequency B．bandwidth C．carrier frequency D．noise frequency A．signal B．caeeier C．noise D．data signal
第4题：
Which set of rf characteristics is directly monitored by the core feature set products？（）
第5题：
What does a broad-spectrum interferer lower？（）
第6题：
A. signal strength 5dBm
B. signal strength 6dBm
C. noise level 4dBm
D. noise level 5dBm
第7题：
Which of these terms refers to call issues that cause variations in timing or time of arrival？（）
第8题：
An analog signal's characteristic quantity representing data may 66). at any instant, any value within a continuous(67). For example, an analog signal may follow continuously the values of another physical quantity representing data.A discrete signal is composed of(68)elements in time, each element having one or more characteristic quantities which can represent data. Examples of characteristic quantities are amplitude, waveform,(69), and position in time. A digital signal is a special case of discrete signals, in which data are represented by a(70)number of well-defined discrete values that one of its characteristic quantities may take in time.
A．acquire
B．collect
C．assume
D．fetch
第9题：
In the OSNR model for EDFA amplifiers, SNR OUT = 1/(1/SNR IN + FhvB/P IN ), what does SNR IN represent?（）
第10题：
What is an advantage of an externally modulated laser over a directly modulated laser?（）