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3 years ago

Read the scenarios below, then use the drop-down menus to decide if you should use a database.

Computers and Technology

1 answer:

Romashka [77]3 years ago

5 0

Answer:

A. The parent-teacher orginization keeps a log of cookies sales to raise money for the elementary school.

Explanation:

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You should avoid deleting the unknown files to store your personal files and folders because if you delete that files it may be critical position with computer.

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3 years ago

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A _______ is conducted to determine the adequacy of system controls, ensure compliance with established security policy and proc

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Answer:

security audit

Explanation:

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3 years ago

Can web sites contain copyright material? Yes No

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Yes they can contain copyright

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2 years ago

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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

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

$q = 1 - 0.95$

$q = 0.05$

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

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

Word Online works exact same as the downloaded Office 2016 version. True False

melisa1 [442]

Answer:

The Answer is false. They work similarly but quite differently on a lot of offerings from them. Office 365 and office.com are online version, and Office 2016 is a desktop version.

Explanation:

I am not going very deep into this but the facts I am mentioning will clarify your doubts.

Office 2016 offers so many ways to share a file even though we work offline on it We can email the document, share on social media as well as store on One drive. However, Office 365, and especially Word online does not allow any other sharing options than sending an invitation or sharing a link.

For Word Online you will need internet all the time, though you can work from anywhere, and even on any device. Word 2016 does not require internet, but provide a lot of analytics features and even data mining facilities when it is connected to the internet.

Watch out for Word online 2019 version, and office 2019 desktop version. They are awesome and provides AI features, and a lot more than 2016 versions, both desktop and online.

3 0

3 years ago