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3 years ago

. An access specifier is one of three keywords:

Computers and Technology

1 answer:

Zolol [24]3 years ago

8 0

Answer:

Access specifiers are used to control the visibility of members like classes, variables and methods. There are three access specifiers: public, private and protected. We shall see only about the public and private access specifiers for now. Protected access specifier comes into picture when inheritance is implemented. plz brainly me

Explanation:

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What is a URN (include example)

BARSIC [14]

Answer: URN(Uniform Resource Name) is the basically a subset of the Uniform Resource identifier(URL). It uses "urn"scheme for the working an implementation. Uniform resource name functions by identifying components uniquely through their name.

The most common example of URN is ISBN (International Standard Book Number)number which helps in the unique searching and identification of book.

7 0

3 years ago

7. Explain the steps for formatting a shape ?

alisha [4.7K]

Answer:

To begin, select the shapes you want to format. To select more than one, press and hold the Shift key. When you select one or more shapes, a new Drawing Tools tab appears. Here, you can select Shape Fill to fill the selected shapes with a solid color, gradient, texture, or picture.

Explanation:

3 0

3 years ago

"Explain the functionality of the different layers found in the network protocol stack of an operating system such as Linux"

arsen [322]

Answer:

There are 7 layers in linux.

Explanation:

As networking is difficult and complex.

Imagine if every application had to know how to communicate on every step that would be more than just complex. So, rather than reinvent something which will help it to communicate let’s just make something that will automatically controls the communication and for that protocols came in to live.

As for the linux operating system, it is not exceptional from other operating systems.

There are 7 layers on network protocol stack use to communicate with other network protocol stack.

1. Application layer

2. System call interface

3. Protocol agnostic interface

4. Network protocol

5. Device agnostic interface

6. Device drivers

7. Physical hardware

All the layers vary in their functionality.

One more important thing to remember is that the network protocol stack layers is not one way its 2 way communication. First, when a client request to a network and second, when the request is full filled.

The top most layer is a part of user space, the next five layers comes in the kernel space and the final layer is the physical layer.

Application layer:

When a client or user request to a network the request initially comes to this layer.

On this layer we use tcp/ip protocol.

System call interface(SCI):

When application layer make a call to the kernel this layer handles that call. And take the request to the next layer.

Protocol agnostic interface:

This layer has two functions “talking” or “listening”. There is a thing called sockets which perform these functions and each socket has an id which is used specifically for an application.

Network protocol:

This layer is used for how the data is sent or received.

Device agnostic interface:

It is used to connect data from/to kernel user space and the network device drivers which allows the data to prepare itself for transmission over the medium from the network device.

Physical hardware :

This layer is responsible for the data packets transmission and received from the network medium being used whether cable or wireless.

5 0

3 years ago

Write a c++ program that accepts a string from the user and then replaces all occurrences of the letter e with the letter x

mixer [17]

Answer:

#include <iostream>

using namespace std;

int main()

{

string str;

cout<<"Enter the string: ";

cin>>str;

for(int i=0;str[i]!='\0';i++){

if(str[i]=='e'){

str[i]='x';

}

cout<<"the string is: "<<str<<endl;

return 0;

}

Explanation:

First, include the library iostream for using the input/output instructions.

Create the main function and declare the variables.

Then, use the cout instruction and print the message on the screen.

cin store the string enter by the user into a variable.

After that, take a for loop and if-else statement for checking the condition if the string contains the 'e', then change that alphabet to 'x'.

This process continues until the string not empty.

Finally, print the updated string.

6 0

3 years ago

Which HTML tags describe the meaning of the content? describe the meaning of the content.

Nata [24]

Defines an HTML document
Contains metadata/information for the document
Defines a title for the document

5 0

2 years ago