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3 years ago

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

Computers and Technology

1 answer:

seropon [69]3 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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A tornado may be approaching if you observe which of the following?

musickatia [10]

I would go with a funnel cloud on this one. It is the most common sign although it does not guarantee a tornado. Most tornadoes that reach the ground do expand from funnel clouds, but a condensation funnel cloud formation is not absolutely necessary for a tornado to form.

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3 years ago

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Explanation:

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3 years ago

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You have double-clicked a device in Device Manager to open its Properties window. Where can you find information about IRQs the

Setler [38]

To find information about IRQs the device might use, make alteration to the View menu option and then change it to Resources by type.

<h3>How do one find information about IRQs?</h3>

The best way to see IRQ information in Windows is through the use of Device Manager.

Note that for one to be able to find information about IRQs the device might use, one has to makes some changes to the View menu option and then one can change it to Resources by type to be able to see the Interrupt request (IRQ) part.

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2 years ago

Lindsey also needs to calculate the commissions earned each month. If the company earns $200,000 or more in a month, the commiss

lutik1710 [3]

Answer:

I have created and attached an image with example values for this question.

First we'll learn the IF function syntax:

IF(logical_test, value_if_true, [value_if_false])

Where

logical_test is the decision making comparison

value_if_true is the result to return when TRUE

value_if_false is the result to return when FALSE

We assume that cells B10 to G10 contain the Total Sales for January to June. And cells B17 to G17 contain the Commissions for January to June.

The formula to use in cell B17 is:

<em>=IF(B10>=200000;True;False)</em>

<em />

The formula to use in cell B17 is:

<em>=IF(B10>=200000;B10*0.35;False)</em>

<em />

The formula to use in cell B17 is:

<em />

To copy the formula in B17 to C17:G17, you can just copy and paste or select cell B17 and drag from the black square on the bottom right of the cell.

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3 years ago

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you want to be able to restrict values allowed in a cell and need to create a drop-down list of values from which users can choo

STALIN [3.7K]

The feature to restrict values allowed in a cell and need to create a drop-down list of values from which users can choose in the above scenario is data validation.

<h3>What is data validation?</h3>

Data validation is a term that connote the act of monitoring the truthfulness and quality of source data before one can make use of it, importing or even process data with it.

Note that The feature to restrict values allowed in a cell and need to create a drop-down list of values from which users can choose in the above scenario is data validation as it ensure that users can make their own choice.

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3 years ago