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Cerrena [4.2K]
3 years ago
5

An IT systems engineer creates a new Domain Name System (DNS) zone that contains a pointer (PTR) resource records. Which zone ty

pe has been created?
Computers and Technology
1 answer:
irina1246 [14]3 years ago
5 0

Answer: Reverse DNS zone

Explo: a reverse DNS zone needs a PTR record since it is in charge of resolving the IP address to a domain or a hostname.

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Explain in brief terms some of the technology and developments that were important in the history and development of the Interne
igomit [66]

Answer: The Internet started in the 1960s as a way for government researchers to share information. ... This eventually led to the formation of the ARPANET (Advanced Research Projects Agency Network), the network that ultimately evolved into what we now know as the Internet.

Have a nice day ahead :)

7 0
2 years ago
For this problem, you will write a function standard_deviation that takes a list whose elements are numbers (they may be floats
Evgesh-ka [11]

Answer:

  1. import math  
  2. def standard_deviation(aList):
  3.    sum = 0
  4.    for x in aList:
  5.        sum += x  
  6.    
  7.    mean = sum / float(len(aList))
  8.    sumDe = 0
  9.    for x in aList:
  10.        sumDe += (x - mean) * (x - mean)
  11.    
  12.    variance = sumDe / float(len(aList))
  13.    SD = math.sqrt(variance)
  14.    return SD  
  15. print(standard_deviation([3,6, 7, 9, 12, 17]))

Explanation:

The solution code is written in Python 3.

Firstly, we need to import math module (Line 1).

Next, create a function standard_deviation that takes one input parameter, which is a list (Line 3). In the function, calculate the mean for the value in the input list (Line 4-8). Next, use the mean to calculate the variance (Line 10-15). Next, use sqrt method from math module to get the square root of variance and this will result in standard deviation (Line 16). At last, return the standard deviation (Line 18).

We can test the function using a sample list (Line 20) and we shall get 4.509249752822894

If we pass an empty list, a ZeroDivisionError exception will be raised.

3 0
3 years ago
Infer how oil pollution affects water mammals such as otters and seals
Snowcat [4.5K]
It can pollute the whater which is the habit to many animals making it not safe fo be in the whater
4 0
3 years ago
What is technology??
UkoKoshka [18]

Answer:

Technology is the skills, methods, and processes used to achieve goals. People can use technology to: Produce goods or services. Carry out goals, such as scientific investigation or sending a spaceship to the moon. Solve problems, such as disease or famine.

Explanation:

Good Luck!

3 0
3 years ago
All early programming languages were object-oriented.
Natasha2012 [34]

Answer:

False.

Object orientation is a paradigm that came later.

7 0
2 years ago
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