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3 years ago

Whichmultiplexing technique involves signals composed of lightbeams?

Computers and Technology

1 answer:

Angelina_Jolie [31]3 years ago

8 0

Answer:

3.WDM

Explanation:

WDM ( wavelength division multiplexing ) involves signals composed of light beams WDM is used in communication where fibers are used it is used for multiplexing of number of carrier signals which are made of optical fibers by using different wavelength of laser light it has different wavelength so this WDM is used for signals composed of light beams it has property of multiplexing of signal

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Summarize who you believe cyber criminals are, and why?

sergij07 [2.7K]

Answer:

The cyber criminals are the people that are engaged with getting the data in an unapproved way and furthermore mischief to the association henceforth are considered as cyber criminals.

Cyber criminals are people or groups of individuals who use innovation to committed the malicious exercises on computerized frameworks or systems with the aim of taking the organization data or individual information and producing benefit.

There are many types of cyber criminals that are:

Internet stalkers
Cyber terrorist
Identity thieves

5 0

3 years ago

Date Time Manipulation Exploration If you start from Jan 1st, 1757, and repeatedly add 8 days, until you hit 1800, how many time

zimovet [89]

Answer:

from datetime import datetime, date, timedelta

def count_weekdays(start_date, add_days, stop_year, weekday):

my_date = start_date

m = 0

while my_date.year != stop_year:

my_date = my_date + timedelta(days = add_days)

if my_date.isoweekday() == weekday:

m += 1

return m

date_val = date(1757,1,1)

try:

date_val = datetime.fromisoformat(input("Enter date in the format yyyy-mm-dd: "))

except ValueError:

print("Wrong isoformat string")

print(count_weekdays(date_val, 8, 1800, 1))

Explanation:

The datetime package of the python programming language has several time modules like the date, datetime, pytz, timedelta, etc, used to manipulate date and time in documents. The function count_weekdays has four parameters and returns the number of a specified weekday in a period of time.

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3 years ago

Test if the word mold is stored in the variable word. Computer science.

Andre45 [30]

Answer:

word = str("Enter a word: ")

if "mold" in word:

print("Mold is in the variable word.")

else:

print("Mold is not in the variable word.")

5 0

3 years ago

Some 3d printers work by controlling the exact locations where a liquid

kow [346]

Were a liquid what? id doesn't make any sense.

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3 years ago

You've just installed a new video card in a user's Windows workstation. When the system is powered on the screen is blank. You

valentinak56 [21]

After having verified that the video cable is installed correctly we should check to see that the computer's RAM is correctly fastened to the motherboard and functional.

The question states that the video card being installed is new, therefore we can comfortably assume that the card itself is not the issue. Other computer components that can cause a blank screen immediately upon powering on the workstation are:

RAM
Hard drive
Bad video driver.
Monitor input is faulty

however, assuming the installation was performed correctly, it is not likely to be caused by a bad video driver and a faulty monitor input is very improbable given that there are very few ways this can break to begin with.

A bad or missing hard drive may cause this kind of issue because the workstation will not have a windows file to boot. In most cases, this will not cause a completely blank screen without first allowing access to the BIOS.

After having verified that the video cable is installed correctly, the very next thing you should check is if the RAM is installed correctly. This is because the issue explained is exactly what will happen if a workstation attempts to boot without RAM, and also because it is the easiest fix among the possible causes and any troubleshooting should always be performed in order from the easiest fix to the most difficult.

To learn more visit:

brainly.com/question/2160588?referrer=searchResults

8 0

2 years ago