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Question
A ________ is a server that appears to the client as if it were an origin server.A) tunnel
B) proxy
C) gateway
D) all of the above
Answer
This answer is hidden. It contains 1 characters.
Related questions
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A means of transmitting analog signals without regard to their content is ________ transmission.
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The simplest sort of signal is a ________ signal, in which the same signal pattern repeats over time.
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A) Voice
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A) digital
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A) multipoint
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Delay distortion occurs because the velocity of propagation of a signal through a guided medium varies with frequency.
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An analog signal can be transmitted only a limited distance before attenuation, noise, and other impairments endanger the integrityof the data.
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A familiar example of analog data is audio, which, in the form of acoustic sound waves, can be perceived directly by human beings.
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A) parallel
B) asynchronous
C) analog
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A) burst
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________ is one of the most fundamental requirements in the transmission of a stream of bits from one device to another.
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A) MFSK
B) ASK
C) FSK
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Because of their simplicity and relatively low frequency response characteristics, ________ codes are commonly used for digital magnetic recording.
A) NRZ
B) AMI
C) VSES
D) B8ZS