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3 years ago

Why is it important to ensure that DNS Servers have been secured before implementing an e-mail system

Computers and Technology

1 answer:

Amiraneli [1.4K]3 years ago

4 0

Answer:

b. E-mail relies upon DNS MX records to identify hosts that are responsible for e-mail transmission.

Explanation:

It is important to ensure that Domain Name Servers have been secured before implementing an e-mail system because E-mail relies upon DNS MX records to identify hosts that are responsible for e-mail transmission.

In other word, this helps the DNS MX determines the mail server accountable for receiving email messages on behalf of a domain name.

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Computer A has an overall CPI of 1.3 and can be run at a clock rate of 600 MHz. Computer B has a CPI of 2.5 and can be run at a

kirill115 [55]

Answer:

Check the explanation

Explanation:

CPI means Clock cycle per Instruction

given Clock rate 600 MHz then clock time is Cー 1.67nSec clockrate 600M

Execution time is given by following Formula.

Execution Time(CPU time) = CPI*Instruction Count * clock time = $\frac{CPI*Instruction Count}{ClockRate}$

for system A CPU time is 1.3 * 100, 000 600 106

= 216.67 micro sec.

for system B CPU time is $=\frac{2.5*100,000}{750*10^6}$

= 333.33 micro sec

c) Since the system B is slower than system A, So the system A executes the given program in less time

Hence take CPU execution time of system B as CPU time of System A.

therefore

216.67 micro = = $\frac{2.5*Instruction}{750*10^6}$

Instructions = 216.67*750/2.5

= 65001

hence 65001 instruction are needed for executing program By system B. to complete the program as fast as system A

3 0

3 years ago

What is the MOST important precaution to take when using social networking sites like Facebook? Use discretion Monitor friend re

leonid [27]

Uh, sure having a strong password is always nice. However, a passphrase is far superior. An example would be: My57goatsequals[4log]. Google Edward Snowden, and all your questions will be answered (concerning privacy). Oh, and by the way, use a VPN (Virtual Private Network) whenever possible.

8 0

3 years ago

Is a book considered technology?

kumpel [21]

Yes, "technology" doesn't have to be all about computers or cell phones.. Technology is anything that is a new advance in knowledge and books were once a great advance in that field.

7 0

4 years ago

Read 2 more answers

Apakah fungsi dari open yang berada di office<br>button?

RSB [31]

untuk membuka file yang disimpan sebelumnya

8 0

3 years ago

If students follow the directions for trying to add a waitlisted class and later become eligible to register for the class, they

bija089 [108]

The students have 24 hours of window time to register for the class after they become eligible to register for the class.

<h3>What is waitlisted?</h3>

The waitlist is a part of the normal decision-making process. This signifies that the college is still interested in you, but there isn't a spot for you right now.

You might get admission if enough other students don't want to go. It's not an outright rejection, as a deferral, but it does mean you'll have to wait to find out if you'll be admitted.

If students follow the directions for trying to add a waitlisted class and later become eligible to register for the class, they will be notified via email that they have a time window of 24 hours to register for the class.

Thus, the students have 24 hours of window time to register for the class after they become eligible to register for the class.

Learn more about the waitlisted here;

brainly.com/question/15526156

#SPJ1

6 0

2 years ago