What frequency range is the High Frequency band?
A. 100 kHz
B. 1 GHz
C. 30 to 300 MHz
D. 3 to 30 MHz
Answer: Option D
A. 100 kHz
B. 1 GHz
C. 30 to 300 MHz
D. 3 to 30 MHz
Answer: Option D
In which decade was the American Institute of Electrical Engineers (AIEE) founded?
A. 1850s
B. 1880s
C. 1930s
D. 1950s
What is part of a database that holds only one type of information?
A. Report
B. Field
C. Record
D. File
'OS' computer abbreviation usually means ?
A. Order of Significance
B. Open Software
C. Operating System
D. Optical Sensor
In which decade with the first transatlantic radio broadcast occur?
A. 1850s
B. 1860s
C. 1870s
D. 1900s
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