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Serjik [45]
4 years ago
11

What is a Digital Service (DS) level and framing specification for digital streams over circuits in the North American transmiss

ion hierarchy at 1.544 Mbps?
Computers and Technology
1 answer:
AfilCa [17]4 years ago
7 0

Answer:

DS-1

Explanation:

DS-1 known also as carrier T1 is part of the T carrier hierarchy and has 24 channels. It was created by AT&T in 1957 and implemented in 1960. DS means digital signal which implies that it was meant for digital signals communication and it was used to transmit voice signals in a long- hual pause code modulation transmission.there are signal levels or carriers in the T carrier hierarchy ranges from 64kbps(DS0) to 274Mbps(DS4).

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Answer:

People prefer composite faces.

Explanation:

If we take some face's picture, and we make it digital, we could make a composite or averaged face, and when we compare composite faces with originals pictures, people prefer the composite faces because there was symmetry in those faces.

For example:

There was a research where a digitalized student faces men and women, researchers make a composite face for every original, people prefer composite face against the original face.

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Suppose a 4096 bit message is sent along a 10Mbit/sec transmission link. Suppose that the latency between the sender and the rec
umka21 [38]

Answer: 8.1 msec.

Explanation:

If we are told that we have a transmission link of sending 10 Mbits in one second, setting up a direct proportion, we can find out how much time is needed to send 4096 bits along the same channel, as follows:

10⁶ bits = 1 sec

4096 bits = x  ⇒ x = 4096 bits. 1 sec / 10⁶ bits = 4.1 msec.

As we have 4 msec of latency between sender and the receiver, we need to add these 4 msec to the transit time, so we have a total message transmission time of 8.1 msec.

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