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2 years ago

When should a technician record a system's baseline data?

1 answer:

3 0

Baseline data is a record of all the system performance specifications when the system is operating as designed. A technician should record a system's baseline data On a new system after it is installed.

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A small company is moving towards sharing printers to reduce the number of printers used within the company. The technician has

Misha Larkins [42]

Answer:

Security risk associated with sharing a printer are

Printer Attacks
Theft
Breach of data
Vulnerable Network

Explanation:

Printer Attacks

A network printer can be used for a DDoS attack.As printer are not very secured and are a weak link in network these can be easily exploited by the hackers for any kind of malicious activities and even lanching a DDoS attack.

DDoS attack is denial of service attack in which network is flooded with malicious traffic which cause it to choke and make it inaccessible for users.

Theft

Physical theft of document can be an issue.Anyone can just took printed pages from printer tray by any one.

Breach of Data

The documents which are printed are usually stored in printer cache for some time which can be accessed by any one connected to the network. Any document containing confidential information which are printed on network printer can fall in wrong hands.

Vulnerable Network

As mentioned a single unsecured network printer can pose great threat to entire network as it can provide a way into the network.

8 0

2 years ago

Which is true regarding pseudocode

Andrews [41]

Answer:

The features of pseudocode are:

It uses plain english statements.

It emphasizes on the design of the computer program.

It uses structured english.

It is detailed and readable to draw an inference.

It enables the programmers to concentrate on the algorithms.

Explanation:

Clues!!!! Your welcome

8 0

2 years ago

A _______ bulb contains a high-pressure gas. Oils from the hands can affect the expansion of the glass, which can shorten the li

shusha [124]

Answer:

I'd go with the 2nd one

If it heats up more & more, then it's lifespan will be shortened more & more. The more it heats up, the less durability it has.

6 0

1 year ago

You have been tasked with building a URL file validator for a web crawler. A web crawler is an application that fetches a web pa

mixas84 [53]

Answer:

Python Code:

def validate_url(url):

#Creating the list of valid protocols and file name extensions

valid_protocols = ['http', 'https', 'ftp']

valid_fileinfo = ['.html', '.csv', '.docx']

#splitting the url into two parts

url_split = url.split('://')

isProtocolValid = False

isFileValid = False

#iterating over the valid protocols and file names for validity

for x in valid_protocols:

if x in url_split[0]:

isProtocolValid = True

break

for x in valid_fileinfo:

if x in url_split[1]:

isFileValid = True

break

#Returning the result if the URL has both valid protocol and file extension

return (isProtocolValid and isFileValid)

url = input("Enter an URL: ")

print(validate_url(url))

Explanation:

The image of the output code is attached. Hope it helps.

4 0

1 year ago

Find a 95% confidence interval for the mean failure pressure for this type of roof panel.The article "Wind-Uplift Capacity of Re

aliya0001 [1]

Answer:

The 95% confidence interval would be given by (2.351;3.525)

Explanation:

1) Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

$\bar X$ represent the sample mean

$\mu$ population mean (variable of interest)

s represent the sample standard deviation

n represent the sample size

2) Confidence interval

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

In order to calculate the mean and the sample deviation we can use the following formulas:

$\bar X= \sum_{i=1}^n \frac{x_i}{n}$ (2)

$s=\sqrt{\frac{\sum_{i=1}^n (x_i-\bar X)}{n-1}}$ (3)

The mean calculated for this case is $\bar X=2.938$

The sample deviation calculated $s=0.472$

In order to calculate the critical value $t_{\alpha/2}$ we need to find first the degrees of freedom, given by:

$df=n-1=5-1=4$

Since the Confidence is 0.95 or 95%, the value of $\alpha=0.05$ and $\alpha/2 =0.025$ , and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.025,4)".And we see that $t_{\alpha/2}=2.78$

Now we have everything in order to replace into formula (1):

$2.938-2.78\frac{0.472}{\sqrt{5}}=2.351$

$2.938+2.78\frac{0.472}{\sqrt{5}}=3.525$

So on this case the 95% confidence interval would be given by (2.351;3.525)

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2 years ago