CET 3116 Exam 1 Questions with 100%
Correct Answers | Rated A+
In December 31st 2019 the density of transistors per square millimeter was
10^6. According to Moore's law, what would be the density of transistors
per square millimeter in June 30th 2021? - ✔✔Twice the density of
transistors per square millimeter from December 31st 2019
Which of the following are examples of digital devices? - ✔✔Computer
A one MB digital file stored on a hard disk contains _______________ KB
(Kilobytes).
Please give a numeric answer including comas and no decimals. -
✔✔1,024
Following the example of the speedometer from the lecture on
"Understanding the Digital Domain", if we want to use 256 possible values
for the speed (from 0 Km/h to 255 Km/h), how many bits should the
rounded-off binary code contain? - ✔✔8
(2^8 = 256)
1
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, Which of the following are examples of transmission media used to
transport electrical signals? - ✔✔Copper wire
Calculate the data rate if the bit period of a signal is 0.00025 s - ✔✔4 Kbps.
Calculate the bit rate of a signal if the data rate is 2.5 Kbps. - ✔✔0.0004 s
Which of the following are advantages of the digital domain? - ✔✔Both a)
and c)
- Ability for noise removal
- Ability for compression
When music is recorded on a DVD-Audio, a digital recording device
samples the sound 96,000 times per second. Each sample is 3 bytes (24
bits) long, and a separate sample is taken for each of the two speakers in a
stereo system. Therefore to store a song of three and a half minutes long,
the digital recording device requires _________ MB (megabits) of memory.
Assume no compression is used. - ✔✔115.356
In a telephony, the usable voice frequency group-band ranges from
approximately 250 Hz to 60 kHz. What would be the minimum sample rate
required to digitize a signal that uses the full bandwidth of this channel
(59.750 kHz)?
Give the result in samples per second. - ✔✔120,000
2
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
Correct Answers | Rated A+
In December 31st 2019 the density of transistors per square millimeter was
10^6. According to Moore's law, what would be the density of transistors
per square millimeter in June 30th 2021? - ✔✔Twice the density of
transistors per square millimeter from December 31st 2019
Which of the following are examples of digital devices? - ✔✔Computer
A one MB digital file stored on a hard disk contains _______________ KB
(Kilobytes).
Please give a numeric answer including comas and no decimals. -
✔✔1,024
Following the example of the speedometer from the lecture on
"Understanding the Digital Domain", if we want to use 256 possible values
for the speed (from 0 Km/h to 255 Km/h), how many bits should the
rounded-off binary code contain? - ✔✔8
(2^8 = 256)
1
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
, Which of the following are examples of transmission media used to
transport electrical signals? - ✔✔Copper wire
Calculate the data rate if the bit period of a signal is 0.00025 s - ✔✔4 Kbps.
Calculate the bit rate of a signal if the data rate is 2.5 Kbps. - ✔✔0.0004 s
Which of the following are advantages of the digital domain? - ✔✔Both a)
and c)
- Ability for noise removal
- Ability for compression
When music is recorded on a DVD-Audio, a digital recording device
samples the sound 96,000 times per second. Each sample is 3 bytes (24
bits) long, and a separate sample is taken for each of the two speakers in a
stereo system. Therefore to store a song of three and a half minutes long,
the digital recording device requires _________ MB (megabits) of memory.
Assume no compression is used. - ✔✔115.356
In a telephony, the usable voice frequency group-band ranges from
approximately 250 Hz to 60 kHz. What would be the minimum sample rate
required to digitize a signal that uses the full bandwidth of this channel
(59.750 kHz)?
Give the result in samples per second. - ✔✔120,000
2
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
