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raketka [301]
3 years ago
13

Which of the following protocols support the encryption and decryption of e-mail messages?

Computers and Technology
1 answer:
Katena32 [7]3 years ago
7 0
It seems that you have missed the necessary options for us to answer this question so I had to look for it. Anyway, here is the answer. The protocol that supports the encryption and decryption of e-mail messages is this: <span>Secure Multipurpose Internet Mail Extensions (S/MIME) and Pretty Good Privacy (PGP). Hope this helps.</span>
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Under which of the following conditions will evaluating this boolean expression
zzz [600]
1.) 
<span>((i <= n) && (a[i] == 0)) || (((i >= n) && (a[i-1] == 0))) </span>

<span>The expression will be true IF the first part is true, or if the first part is false and the second part is true. This is because || uses "short circuit" evaluation. If the first term is true, then the second term is *never even evaluated*. </span>

<span>For || the expression is true if *either* part is true, and for && the expression is true only if *both* parts are true. </span>

<span>a.) (i <= n) || (i >= n) </span>

<span>This means that either, or both, of these terms is true. This isn't sufficient to make the original term true. </span>

<span>b.) (a[i] == 0) && (a[i-1] == 0) </span>

<span>This means that both of these terms are true. We substitute. </span>

<span>((i <= n) && true) || (((i >= n) && true)) </span>

<span>Remember that && is true only if both parts are true. So if you have x && true, then the truth depends entirely on x. Thus x && true is the same as just x. The above predicate reduces to: </span>

<span>(i <= n) || (i >= n) </span>

<span>This is clearly always true. </span>
3 0
3 years ago
 A number of companies and/or agencies, such as National ____ and Atmospheric Administrationâs National Weather Service, provid
LekaFEV [45]

Answer: D) Oceanic

Explanation:

National oceanic and the atmospheric administration (NOAA)are the national weather services which basically provide the weathering conditions and forecast them on their particular websites.

NOAA is basically responsible for monitoring or environment and climate. this agency is situated in the united state at washington headquarter. It also helps to preserve the climate by taking some effective steps for our environment.  

4 0
3 years ago
1. If you have the following device like a laptop, PC and mobile phone. Choose one device
ella [17]

Answer:

For this i will use my own PC.

OS - Windows 10

Storage Capacity - 512 GBs

Memory - 16 GB

Wi-Fi - Ethernet

Installed Application - FireFox

Explanation:

An OS is the interface your computer uses.

Storage capacity is the space of your hard drive.

Memory is how much RAM (Random Access Memory) you have

Wi-Fi connectivity is for how your computer connects the the internet.

An installed application is any installed application on your computer.

3 0
3 years ago
Matlab In this assignment you will write a function that will calculate parallel resistance for up to 10 parallel resistors. Cal
Ket [755]

Answer:

The complete Matlab code along with step by step explanation is provided below.

Matlab Code:

function Req=ParallelR(Number)

Number=input('Please enter the number of resistors: ');

if Number>10 | Number<=0

   disp('Invalid input')

return

end

R=0;

for i=1:Number

r=input('Please enter the value of resistor: ');

R=R+1/r;

end

Req=1/R;

end

Explanation:

Parallel resistance is given by

\frac{1}{Req} = \frac{1}{R_{1}} + \frac{1}{R_{2}} + \frac{1}{R_{3}}...+\frac{1}{R_{N}}

First we get the input from the user for how many parallel resistors he want to calculate the resistance.

Then we check whether the user has entered correct number of resistors or not that is from 1 to 10 inclusive.

Then we run a for loop to get the resistance values of individual resistors.

Then we calculated the parallel resistance and keep on adding the resistance for N number of resistors.

Output:

Test 1:

Please enter the number of resistors: 3

Please enter the value of resistor: 10

Please enter the value of resistor: 20

Please enter the value of resistor: 30

ans =       60/11

Test 2:

Please enter the number of resistors: 11

Invalid input

Test 3:

Please enter the number of resistors: 0

Invalid input

8 0
3 years ago
On a wireless network use _____ to ensure that only authorized client computers are able to access the wireless network.
grigory [225]

Answer:

That

your answer

MAC address filtering

5 0
3 years ago
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