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Lernen beginnen

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Frage		Antworten
Which transmission media has the highest transmission speed in a network? Lernen beginnen		optical fiber
Bits can be send over guided and unguided media as analog signal by Lernen beginnen		digital modulation
Wireless transmission can be done via Lernen beginnen		all of the mentioned
Which of the following networks extends a private network across public networks? Lernen beginnen		vpn
In the OSI model, as a data packet moves from the lower to the upper layers headers are Lernen beginnen		removed
What is the process of examining the frequency content of a signal? Lernen beginnen		Spectrum analysis
The amount of data transmitted for a given amount of time is called Lernen beginnen		bandwidth
OSI stands for Lernen beginnen		open system interconnection
Transmission data rate is decided by Lernen beginnen		physical layer
The data link layer takes the packet from ... and encapsulates them into frames for transmission. Lernen beginnen		network layer
When 2 or more bits in a data unit has been changed during the transmission, the error is called Lernen beginnen		burst error
Amplitude modulation is Lernen beginnen		change in frequency
What happens then the amplitude of modulating signal is greater than the aplitue od the carrier? Lernen beginnen		distortion
The ratio between the modulating signal voltage and the carrier voltage is calles? Lernen beginnen		modulation index
Types of analog modulation are: Lernen beginnen		all of the above
Analog signal may be converted into digital signal by Lernen beginnen		sampling
A distored signal of frequency fm is recovered from a sampled signal if the sampling frequency is Lernen beginnen		fs < 2fm
One of the protocols dedicated to the beacon is Lernen beginnen		Eddystone

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