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Aleks04 [339]
2 years ago
11

When troubleshooting Domain Name System (DNS) problems, which helpful feature do public servers usually support

Computers and Technology
1 answer:
seropon [69]2 years ago
5 0

Answer:

ICMP echo requests.

Explanation:

A Domain Name System (DNS) can be defined as a naming database in which internet domain names (website URLs) are stored and translated into their respective internet protocol (IP) address. This simply means that, DNS is used to connect uniform resource locator (URL) or web address with their internet protocol (IP) address.

When troubleshooting Domain Name System (DNS) problems, one helpful feature the public servers usually support is an ICMP echo requests.

ICMP is an acronym for Internet Control Message Protocol and it is a standard protocol for communicating network errors in the form of messages such as Time exceeded and Destination unreachable.

In Computer Networking, an echo reply and echo request are implemented with a command utility referred to as ping. When a user sends an echo request message with the ping program, a successful attempt will return an echo reply message.

Hence, when troubleshooting Domain Name System (DNS) problems, a user should ping a public server such as a Google DNS server with the IP address (8.8.8.8 or 8.8.4.4), Cloudfare with 1.1.1.1 or the common 4.2.2.2 DNS server. If successful, it means the name-server was resolved properly into an IP address and therefore, there's an active connection on the network.

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While rendering the homepage of a website, it takes a lot of time due to the thread being blocked in processing JS/CSS. What are
jekas [21]

Answer:

a) Pick ONE OR MORE options Using code-splitting for JS files.

b) Compressing the JS files on the server-side

Explanation:

Javascript is a multi-purpose programming language, it is used in web development as a scripting language for programming the interactiveness of the web application.

Loading and running the script from the server can take a lot of time, so, the file is compressed and split for faster loading.

6 0
2 years ago
Lukas entered the date 9-17-2013 in an Excel workbook. He wants the date to appears as “Tuesday, September 17, 2013.” Instead of
Sphinxa [80]
<span>The answer is highlight cells, select the Insert tab, click on the number, select Date from the category box, highlight the correct format, and click OK.</span>
8 0
2 years ago
A variable like user_num can store a value like an integer. Extend the given program as indicated. Output the user's input. (2 p
lapo4ka [179]

Answer:

The answer to this question is given below in the explanation section. It is noted that this program is written in C++ using online C++ compiler.

Explanation:

#include <iostream>

using namespace std;

int squared(int num)// this is the function to compute square

   {

       return num*num;

   }

int cube(int num)// this is the function to compute cube

   {

       return num*num*num;

   }

int main()

{

   int user_num, user_num2; // variable declaration

   

       cout<<"Enter the first number: ";//prompt user to enter the number

       cin>>user_num;//store the user entered number into variable

       cout<<"\nEnter the second number: ";//prompt the user to enter the second number

       cin>>user_num2;//store the user entered number into variable

   

   

   cout<<"\nSquared of first number is: "<<squared(user_num);//compute square of user_num and display

   cout<<"\nCube of first number is: "<<cube(user_num);//compute the cube of the user_num and display

   cout<<"\nSquare of second number is: "<<squared(user_num2);//compute the square of user_num2 and display

   cout<<"\nCube of second number is: "<<cube(user_num2);//compute the cube of user_num2 and display

   

   cout<<"\nSum of number 1 and number 2 is: "<<user_num2 + user_num2;//display the sum of user_num2 and user_num

   cout<<"\nProduct of number 1 and number 2 is: "<<user_num2 * user_num;//display the product of user_num and user_num2

   

   

   return 0;//terminate the program

}

                               

7 0
2 years ago
Connie works for a medium-sized manufacturing firm. She keeps the operating systems up-to-date, ensures that memory and disk sto
gizmo_the_mogwai [7]

Answer: Computer operator

Explanation:

Following the information given, we can deduce that Connie is employed as a computer operator. A computer operator is a role in IT whereby the person involved oversees how the computer systems are run and also ensures that the computers and the machines are running properly.

Since Connie keeps the operating systems up-to-date, ensures that memory and disk storage are available, and oversees the physical environment of the computer, then she performs the role of a computer operator.

4 0
2 years ago
. Question 2 Fill in the blank: R Markdown notebooks can be converted into HTML, PDF, and Word documents, slide presentations, a
Levart [38]

R markdown notebook describes a notebook format in R programming which supports R programmers to run codes while also writing documents or explanation alongside. Hence, the missing option is Dashboard.

  • R markdown may be compared to jupyter notebooks which also supports writing in markdown language.

  • The R markdown notebooks can be created using the R studio, which allows the conversion notebooks of these notebooks into several different formats including the creation of dashboards.

Hence, R markdown notebooks can be converted to <em>HTML</em><em> </em><em> </em><em> </em><em>PDF</em><em>,</em><em> </em><em>word</em><em> </em><em>document</em><em>,</em><em> </em><em>slide</em><em> </em><em>presentation</em><em> </em><em>and</em><em> </em>dashboards.

Learn more :brainly.com/question/25575402

3 0
2 years ago
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