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levacccp [35]
3 years ago
7

Which routine best ensures email safety?

Computers and Technology
2 answers:
Musya8 [376]3 years ago
7 0
Scan everything for viruses 
USPshnik [31]3 years ago
4 0
<span>Don’t open emails or download attachments from unknown senders</span>
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HELP PLEASE NOW ASAP BRAINLIEST
charle [14.2K]
<span>Josie lives in an area where there are frequent power cuts. She should use a UPS (Uninterruptible Power Supply). It protects against damage to a computer's hard drive (data) in case of a sudden shutdown.

Hope this helps!</span>
7 0
3 years ago
Read 2 more answers
g The reciprocal Fibonacci constant ψ is defined by the infinite sum: ψ=∑n=1 [infinity] 1 Fn Where Fn are the Fibonacci numbers
timama [110]

Answer:

see explaination

Explanation:

MATLAB script:

% MATLAB script that calculates reciprocal Fibonacci constant Ψ

% Initial Values

a0 = 1;

a1 = 1;

% Looping variable

i = 2;

% Reading n value from user

n = input(' Enter n value: ');

% Initializing sum

sum = (1/a0) + (1/a1);

% Loop till i reaches n value

while i <= n

% Finding term in Fibnocii series

a2 = a0 + a1;

% Accumulating Sum

sum = sum + (1/a2);

% Updating previous terms

a0 = a1;

a1 = a2;

% Incrementing loop variable

i = i + 1;

endwhile

% Printing result

printf("\n Reciprocol Fibnocii Constant: %f \n", sum);

See attachment for sample output

5 0
3 years ago
Write a program in python to test if given number is prime or not.
Paraphin [41]

Answer:

Answer:

def main():

num = int(input("Input a number to check for prime: "))

if num > 1:

 for i in range(2,num):

  if (num % i) == 0:

   print("%d is not a prime number" % num)

   break

  else:

   print("%d is a prime number" % num)

   break

else:

 print("%d is not a prime number" % num)

 

if __name__ == "__main__":

main()

Explanation:

Solution retrieved from programiz.com.

Note, this program uses the idea of the Sieve of Eratosthenes to validate the input number by using the modulo operator to determine primeness.

The program will output to the user if the number input is indeed prime or not.

Cheers.

Explanation:

4 0
3 years ago
Read 2 more answers
Assuming a computer has a single processor and a single core with no support for parallel execution, explain why running a multi
IRISSAK [1]

Answer:

Explanation:

Before we go deep into this question lets have some brief knowledge on parallel execution, parallel processing and multi tasking.

Parallel Execution : in this two or more tasks or program can be executed parallel or simultaneously.

For example if there are two processors and four programs to be executed then it executes two at a time.

Multi tasking: in this two or more tasks can be performed simultaneously switching between them without exiting any application.

For example we use notepad, word pad, excel sheet, chrome all at a time switching between each other.

Multi Threading: It is splitting up the program into different threads.If the contents in the program are independent on each other then the program can be split into multi threads and can be processed.

Multi threading in multi core or processing unit : In this threads are executed parallel or simultaneously in different processes.

For example if there are two processors then one multi threaded program can execute two threads in two different processors.

Multi threaded program in single core unit : In this, program is multi threaded where as threads cannot execute parallel or simultaneously. they sholud be executed by the same processor. So they should wait in queue

Ex: consider three tasks of 6 secs each and multi threaded each into three threads of two seconds.

Task1 3secs > task2 3secs > task3 3 secs it repeats until each task is completed

Total time taken is 3+3+3+3+3+3+3+3+3 is 18seconds...

If they are executed one by one without multi threading total execution time has no change..

Where as multi threading program has its advantages if different threads are executed at different place..

If one thread executes at network, another at printer and other processor then these three can execute at same time at different processors. Multi threading has its advantages but in single core systems it doesn't affect the performance.

Inter process communication consists of

Information Sharing, message passing, Modularity.

In shared memory inter process communication processes shares the memory between each other.

In message passing communication process communicates like request and replies for information and resources.

Interlocking is due to error in resource sharing and information sharing. It results in system collapse.

Al these process communication is required if there are two or more.processes but in single core it is not much useful and advisable.

In single core there will be a single processor, processing multi threaded program as it can access all the memory contents there will be no problem of process communication. Where as in multi core systems different processes may compete for same memory or resource.

In single core systems inter process communication makes things complex and these complexity is not much useful in any of the improvement in performance.

4 0
3 years ago
What steps can you take to secure your private information?.
pogonyaev

Answer:

Below:

Explanation:

1. Practice mail security. Use a public mailbox rather than your home mailbox to send bill payments and other mail containing sensitive information. Pick your mail up promptly and ask the post office to hold it while you’re away.

2. Guard your Social Security number. Don’t carry your Social Security card, military ID, Medicare, or other cards that have your Social Security number on them unless you are going somewhere where you will need them. Only provide your Social Security number when there is a legitimate need to do so.

3. Lock and shred. Keep your billing and banking statements and other personal records locked up and shred them when no longer needed.

4. Stop prescreened credit and insurance mailings. Call toll-free 1-888-567-8688 to get off mailing lists for credit and insurance offers. Your Social Security number will be required. This keeps thieves from intercepting and accepting the offers in your name and doesn’t affect your eligibility for credit or insurance.

5. Keep private information to yourself. Never respond to phone calls or emails asking to confirm your Social Security number or account numbers. Don’t leave PIN numbers, passwords or other personal information around for others to see.

6. Be safe online. Use anti-virus and anti-spyware software and a firewall on your computer and keep them updated. When you provide financial or other sensitive information online, the address should change from “http” to “https” or “shttp.” A symbol such as a lock that closes may also indicate that the transmission is secure.

7. Look at your bills and bank statements promptly. If you find any charges or debits that you never made, contact the bank or company immediately.

Hope it helps.......

It's Muska...  

6 0
2 years ago
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