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Lyrx [107]
3 years ago
9

What type of servers are used to store recently accessed DNS records from other domains to avoid incurring the performance overh

ead involved in making a remote query each time a resource outside the local domain is accessed?
A) Name resolvers
B) Primary DNS servers
C) Subdomains
D) Caching servers
Computers and Technology
1 answer:
Kruka [31]3 years ago
8 0

The correct answer is B. Primary DNS Server.

DNS records are type of data that is equivalent to IP address where the website or domain is located.  DNS records are normally stored in DNS server in a raw or flat file. A host, using port number 53 will send a DNS request to the server. If the computer has stored it's data or record in it's database, it will automatically reply to the requesting host. Example: You typed in www.website.com, if you have a matching DNS record in your server, using an IP address, your server will reply and display the website.

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15 points. Please give an actual answer and not some random thing. this is not just free points. Correct answer will receive bra
trapecia [35]

Answer:

i think its b

Explanation:

i did the test and got it right

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A good way to assess your CPU usage is to:_______.
inna [77]
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Write a method that takes a Regular Polygon as a parameter, sets its number of sides to a random integer between 10 and 20 inclu
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Answer:

Answered below

Explanation:

//Program is written in Java programming language

Class RegularPolygon{

int sides = 0;

int length = 0;

}

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8 0
3 years ago
Define a function compute_gas_volume that returns the volume of a gas given parameters pressure, temperature, and moles. Use
jeyben [28]

Question:

Define a function compute_gas_volume that returns the volume of a gas given parameters pressure, temperature, and moles. Use the gas equation PV = nRT, where P is pressure in Pascals, V is volume in cubic meters, n is number of moles, R is the gas constant 8.3144621 ( J / (mol*K)), and T is temperature in Kelvin.

Answer:

This solution is implemented in C++

double compute_gas_volume(double P, double T, double n){

   double V = 8.3144621 * n * T/P;

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}

Explanation:

This line defines the function, along with three parameters

double compute_gas_volume(double P, double T, double n){

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This returns the calculated volume

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}

To call the function  from the main, use:

<em>cout<<compute_gas_volume(P,T,n);</em>

<em />

<em>Where P, T and n are double variables and they must have been initialized</em>

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