Computer Networking Which of the following frequency ranges is used for AM radio transmission? Very Low Frequency : 3 kHz to 30 kHz Very High Frequency : 30 MHz to 300 MHz Medium Frequency : 300 kHz to 3 MHz None of these High Frequency : 3 MHz to 30 MHz Very Low Frequency : 3 kHz to 30 kHz Very High Frequency : 30 MHz to 300 MHz Medium Frequency : 300 kHz to 3 MHz None of these High Frequency : 3 MHz to 30 MHz ANSWER DOWNLOAD EXAMIANS APP
Computer Networking The core diameter of a single-mode fibers is about 10 times the wavelength of the light carried in the fiber None of these 7 times the light carried in the fiber 3 times the wavelength of the light carried in the fiber 10 times the fiber radius 10 times the wavelength of the light carried in the fiber None of these 7 times the light carried in the fiber 3 times the wavelength of the light carried in the fiber 10 times the fiber radius ANSWER DOWNLOAD EXAMIANS APP
Computer Networking The channel in the data communication model can be telephone lines postal mail service All of these None of these radio signals telephone lines postal mail service All of these None of these radio signals ANSWER DOWNLOAD EXAMIANS APP
Computer Networking The _____ layer is the layer closest to the transmission medium. data link None of these transport network physical data link None of these transport network physical ANSWER DOWNLOAD EXAMIANS APP
Computer Networking What is the main difference between DDCMP and SDLG? None of these DDCMP has a message header SDLC does not use CRC SDLC has a IP address DDCMP does not need special hardware to final the beginning of a message. None of these DDCMP has a message header SDLC does not use CRC SDLC has a IP address DDCMP does not need special hardware to final the beginning of a message. ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Which of the following condition is used to transmit two packets over a medium at the same time? Collision None of these Asynchronous Contention Synchronous Collision None of these Asynchronous Contention Synchronous ANSWER DOWNLOAD EXAMIANS APP
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