All categories

3 years ago

How does a computer resolve a domain name into an ip address?

Computers and Technology

1 answer:

Yanka [14]3 years ago

8 0

Answer:

Using the DNS service.

Explanation:

The computer sends a UDP packet with the domain name in it to port 53 of the configured DNS server, and expects a reply with the IP address of that domain.

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How can i learn about networks

timama [110]

Answer:

1. Clients and servers—how services such as e-mail and web pages connect using networks.

2. IP addresses—how devices on a network can be found.

3. Network hubs, switches and cables—the hardware building blocks of any network.

4. Routers and firewalls—how to organize and control the flow of traffic on a network.

3 0

2 years ago

Write a C++ Programm in which inheritance is used

geniusboy [140]

Answer:

// C++ program to demonstrate inheritance

#include <iostream>

using namespace std;

// base class

class Animal {

public:

void eat() {

cout << "I can eat!" << endl;

}

void sleep() {

cout << "I can sleep!" << endl;

}

};

// derived class

class Dog : public Animal {

public:

void bark() {

cout << "I can bark! Woof woof!!" << endl;

}

};

int main() {

// Create object of the Dog class

Dog dog1;

// Calling members of the base class

dog1.eat();

dog1.sleep();

// Calling member of the derived class

dog1.bark();

return 0;

}

8 0

2 years ago

What are the two basic categories of film

kati45 [8]

Video and Sound are the 2 most basic categories of film

3 0

2 years ago

You are implementing a RAID storage system and have found a system with eight 100 GB drives. How much storage space will you hav

asambeis [7]

Answer:

The space available will vary between 800 GB (100%) and 400 GB (50%) of the total disks, depending on the RAID level.

The OS will handle the RAID as a single disk.

Explanation:

Each RAID level implements parity and redundancy in a different way, so the amount of disks used for this extra information will reduce the space available for actual storage.

Usual RAID levels are:

RAID 0: does not implement any redundancy or parity, so you will have available 100% of the total storage: 8 x 100 GB = 800 GB

RAID 1: Duplicates all the information in one disk to a second disk. Space is reduced in half: 400 GB

RAID 5: Uses the equivalent of 1 disk of parity data distributed evenly on each disk, meaning the space available is $\frac{n-1}{n}$ of the total disks: $\frac{7}{8}$ of 800 GB = 700 GB

Writting and reading the information on a RAID storage is handled by a raid controller, either implemented in hardware or software. The OS will "see" a single disk and will read or write information as usual.

4 0

2 years ago

A blank is the full web Address for particular website (Computer technology)

Yuki888 [10]

What do you mean by that

6 0

2 years ago