What is meant by the term text?

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

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

$q = 1 - 0.95$

$q = 0.05$

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To get an expression for one server

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 $Log0.05$

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

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

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

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

$n = 2.84310893421$

$n = 3 (Approximated)$

Hence, the smallest number of servers required is 3 servers

6 0

3 years ago

o maintain reasonable key security (mark all that apply): Ensure that someone else always has an extra key. Ensure that no extra

Komok [63]

Answer:

The answer is "second, third, and fourth choices"

Explanation:

In the question the numbering of the choices were missing if we numbering the choices so, the first choice will be one first number and second choice is in second and so on, and its explanation can be defined as follows:

The network safety key is a type of network login credentials or passwords which is used for provides authorization as well as access the network or device upon which client requests to communicate throughout the form of physical, digital, or biometrical information login.

It doesn't ensure the extra key.
It helps ensure there were no additional duplicates.
It keeps strict access codes as well as keys command.
It makes sure, that its key could not be linked to able to operate the lock.

6 0

3 years ago

Who was one of the founders of the location sharing site Foursquare

Shalnov [3]

One of the founders of Foursquare is Dennis Crowley. The other is Naveen Selvadurai. I know you didn't ask for both but I wanted to give them to you just in case. I hope this helps! (:

7 0

3 years ago

What does a file association specify?

Olenka [21]

Answer:

The answer is D

Explanation:

file association associates a file with an application capable of opening that file. More commonly, a file association associates a class of files with a corresponding application.

4 0

2 years ago

Read 2 more answers

One acre of Land is equivalent to 43,560 square feet. Write a program that ask the user to enter the total square feet of a piec

trapecia [35]

Answer:

#include <stdio.h>

int main() {

const float square_feet;

printf("Enter area in square feets: ");

// reads and stores input area

scanf("%f", &square_feet);

float acres= square_feet/43560;

// displays area in acres

printf("area in acres is: %.2f", acres);

return 0;

}

Explanation:

code is in C language.

double slashed '//' lines are not code but just comments to understand what it mean in code or for explanation purpose

7 0

3 years ago