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3 years ago

11

Select the best answer from the drop-down menu. ________ networks use cables connected directly to the computer. Signals sent in

a relatively short-range area are called ________. ________ can be subject to interference. _________ is the fastest connection. It is easier for unwanted intruders to access a ________ network.

Computers and Technology

1 answer:

LekaFEV [45]3 years ago

4 0

Answer: Wired, Wi-fi, Wi-fi, A wired network, Wi-fi

Explanation:

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Oxnard Casualty wants to ensure that their e-mail server has 99.98 percent reliability. They will use several independent server

sattari [20]

Answer:

The smallest number of servers required is 3 servers

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Explanation:

Given

$Reliability = 99.98\%$

$Individual Servers = 95\%$

Required

Minimum number of servers needed

Let p represent the probability that a server is reliable and the probability that it wont be reliable be represented with q

Such that

$p = 95\%\\$

It should be noted that probabilities always add up to 1;

So,

$p + q = 1$ '

Subtract p from both sides

$p - p + q = 1 - p$

$q = 1 - p$

Substitute $p = 95\%\\$

$q = 1 - 95\%$

Convert % to fraction

$q = 1 - \frac{95}{100}$

Convert fraction to decimal

$q = 1 - 0.95$

$q = 0.05$

------------------------------------------------------------------------------------------------

<em>To get an expression for one server</em>

The probabilities of 1 servers having 99.98% reliability is as follows;

$p = 99.98\%$

Recall that probabilities always add up to 1;

So,

$p + q = 1$

Subtract q from both sides

$p + q - q = 1 - q$

$p = 1 - q$

So,

$p = 1 - q = 99.98\%$

$1 - q = 99.98\%$

Let the number of servers be represented with n

The above expression becomes

$1 - q^n = 99.98\%$

Convert percent to fraction

$1 - q^n = \frac{9998}{10000}$

Convert fraction to decimal

$1 - q^n = 0.9998$

Add $q^n$ to both sides

$1 - q^n + q^n= 0.9998 + q^n$

$1 = 0.9998 + q^n$

Subtract 0.9998 from both sides

$1 - 0.9998 = 0.9998 - 0.9998 + q^n$

$1 - 0.9998 = q^n$

$0.0002 = q^n$

Recall that $q = 0.05$

So, the expression becomes

$0.0002 = 0.05^n$

Take Log of both sides

$Log(0.0002) = Log(0.05^n)$

From laws of logarithm $Loga^b = bLoga$

So,

$Log(0.0002) = Log(0.05^n)$ becomes

$Log(0.0002) = nLog(0.05)$

Divide both sides by $Log0.05$

$\frac{Log(0.0002)}{Log(0.05)} = \frac{nLog(0.05)}{Log(0.05)}$

$\frac{Log(0.0002)}{Log(0.05)} = n$

$n = \frac{Log(0.0002)}{Log(0.05)}$

$n = \frac{-3.69897000434}{-1.30102999566}$

$n = 2.84310893421$

$n = 3 (Approximated)$

<em>Hence, the smallest number of servers required is 3 servers</em>

6 0

3 years ago

Implement a class Car with the following properties. A car has a certain fuel efficiency (measured in miles/gallon or liters/kmâ

zvonat [6]

Answer:

class Car(object):

fuel = 0

def __init__(self, mpg):

self.mpg = mpg

def drive(self, mile):

if self.fuel * self.mpg >= mile:

self.fuel -= mile / self.mpg

else:

print(f"get gas for your {self}")

print(f"Fuel remaining: {self.fuel}")

#classmethod

def get_gas(cls):

cls.fuel += 50

#classmethod

def add_gas(cls, gallon):

if cls.fuel + gallon > 50:

cls.fuel += 10

else:

cls.fuel += gallon

gulf = Car(20)

gulf.get_gas()

gulf.drive(200)

Explanation:

The Car class is defined in Python. Its drive method simulates the driving of a car with fuel that reduces by the miles covered, with efficiency in miles per gallon. The get_gas and add_gas methods fill and top up the car tank respectively.

3 0

2 years ago

Which Traffic Source dimensions does Google Analytics automatically capture for each user who comes to your site?A. Source, Keyw

LenaWriter [7]

For each user who comes to your site the google analytics automatically capture the traffic source dimensions Source, Medium, Campaign name.

<u>Explanation:</u>

Source:

There cannot be any reference to a website without an origin source.
The source is basically the origin of your traffic such as a search engine (google) or a domain (ex: Twitter).

Medium:

Every referral to a website also has a medium along with the source.
examples are -: unpaid search, "cost per click", referral, mail.

Campaign name:

The campaign Name is the name referring to the google ads campaign.

5 0

3 years ago

A cookie is stored on your device's memory or disk in what file format? 1.)video file

Natalka [10]

Answer:

text file format

4 this is the answer

4 0

2 years ago

To accomplish a certain task when you would rsther be doing something else is an example of

fenix001 [56]

Answer:

Self Discipline

Explanation:

his is because you train your brain to do the right thing.

I hope I helped. Thank you for your time.

6 0

3 years ago