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Aleksandr [31]
4 years ago
6

Which of the following types of servers can be used to cache requested Internet resources so that they can be more quickly deliv

ered to users requesting the same resource while at the same time reducing the burden on the external network connection to the Internet for an organization?
a. file serverb. DNS serverc. DHCP serverd. proxy server
Computers and Technology
1 answer:
omeli [17]4 years ago
8 0

Answer:

Proxy Server

Explanation:

  • Proxy server is a server that acts as a mediator between two systems.
  • One system can be your computer and the other can be the server to which you are asking a service, such as requesting a web page.
  • Lets suppose you request a web page from a server and you type a URL of a website to access a web page.
  • This request goes to proxy server which sends this request on your behalf to the target server in order to retrieve that web page.
  • Proxy server makes this request to the target server on the internet by using one of its IP addresses.
  • When the proxy server gets that web page, it will forward that web page to your requesting computer.
  • If you request a specific service such as a website frequently the proxy server saves that website on its cache.
  • So if you request that website again, proxy server will forward it to you from its cache rather than requesting it again from the target server on your behalf resulting in quick response to the user's request. This speeds up the delivery of resources to the users.
  • Proxy servers provide users with privacy to access the websites, and they can surf the internet anonymously .
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In comparing a multi-boot environment and an environment using a type II hypervisor which offers the best performance? Which wou
ElenaW [278]

Answer / Explanation

To answer this question, let us first understand what a multi boot environment is and what an environment using a hypervisor is:

Multiple-booting can be defined or simply refers to the process of installing different multiple operating system on a single computer and also to be able to determine which of the operating systems boot per time.

While:

Hypervisor or a type 2 hypervisor can be described as a form of virtual machine in form of a software that is installed on in an existing operating system of a computer. One of the main benefit of an hypervisor is it enables easy navigation of guest on your computer without actually navigating into your original or primary operating system plus it aid in fast system recovery.

If we now refer back to the question asked in respect to which i would offer as the most convenience, i would prefer the type 2 hypervisor as convenient because i am able to run an operating system inside another operating system so navigating between two operating system would be very easy as compared to the Multi-booting where i have to always shut down an operating system to navigate between the operating system because i can only use one operating system per time.

4 0
4 years ago
Write the definition of a function named printpoweroftwostars that receives a non-negative integer n and prints a line consistin
Aleksandr-060686 [28]
To accomplish this without using a loop,
we can use math on a string.

Example:
print("apple" * 8)

Output:
appleappleappleappleappleappleappleapple

In this example,
the multiplication by 8 actually creates 8 copies of the string.

So that's the type of logic we want to apply to our problem.

<span>def powersOfTwo(number):
if number >= 0:
return print("*" * 2**number)
else:
<span>return

Hmm I can't make indentations in this box,
so it's doesn't format correctly.
Hopefully you get the idea though.

We're taking the string containing an asterisk and copying it 2^(number) times.

Beyond that you will need to call the function below.
Test it with some different values.

powersOfTwo(4) should print 2^4 asterisks: ****************</span></span>
4 0
4 years ago
In a _____ feedback loop, output that results from a system acts as input that moves the system in the other direction.In a ____
Svetach [21]

Answer: Negative

Explanation: A negative feedback loop has the major property of regulating on its own. It also becomes stable at certain point of time which makes it balancing feedback.The increment in the output of this system prevents the future generation of the feedback system.

The output gained as feedback is meant as the input in opposite direction in this system.Other options are incorrect because inverted feedback loop works in the inverted manner, positive feedback loop behaves as unstable system and convoluted feedback loop is not a technical term.

8 0
3 years ago
In this activity, you will create a Portable Document Format (PDF) version of a photography career résumé. You will include all
Troyanec [42]

Answer:

Use Adobe Acrobat or another software that enables you to create a PDF.

Explanation:

Download Adobe Acrobat from the official website.

Once you've installed the software, follow the instructions of your assignment. A good example of a resume for a photography career can be found through a web search, any should do.

Once you've opened up the program, you'll find the tools in the toolbar to help you organize the resume however you'd like it to look. It doesn't matter how you structure the resume, what matters is that you include all of the necessary information asked of you for your assignment.

You can look up important details that should be included in your resume online through a web search.

I hope this helps! And good luck!

4 0
2 years ago
Some programming languages permit arbitrary flow of control from any place in a program to any other place in the program. Not J
liraira [26]
Besides portability, another of Java's key advantages is its set of security features which protect a PC running a Java program not only from problems caused by erroneous code but also from malicious programs (such as viruses). You can safely run a Java applet downloaded from the Internet, because Java's security features prevent these types of applets from accessing a PC's hard drive or network connections. An applet is typically a small Java program that is embedded within an HTML page.
4 0
3 years ago
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