Answer: keeps confidential documents secure,
displays a GUI, allocates the computer's resources, and retrieves files
Explanation:
The operating system can be defined as the software installed in the system that provides the information and services to the users by controlling the hardware, software resources, and regulates the computer programs. It runs the applications and programs in the system, displays the graphic user interface for the services, stores, manipulates, and retrieves files. It prevents the unauthorized access to the data and programs by using passwords thus provides the security to the system and documents.
Answer:
The design model is the description of the model to be implemented, the analysis model is the model that links the design and the system or domain model while the domain model is the entire software implementation.
Explanation:
The domain model is the conceptual aspect of software engineering that comprises operational and data features. The analysis model is the schematic description of the system that links the design model to the system domain. The design model is also known as the object model as it shows an abstract representation of the implementation. It helps to test the quality of the software been developed.
The correct statement about database services or database instances is
( B).<u>An instance of the cloud database operates as a service that handles all application requests to work with the data in any of the databases managed by that instance.</u>
<u />
Explanation:
An instance of the Database Engine can be defined as a service that <u>all application requests to work with the data in any of the databases managed by that instance.The data can be on the same system or can be on another system </u>
So in case of a Cloud based database engine
( B).<u>An instance of the cloud database operates as a service that handles all application requests to work with the data in any of the databases managed by that instance.</u>
<u />
If you are on the admin account, you will already have them, but if you are on a different account, it's pretty impossible But you can get through by using command prompt.
Answer:
C++.
Explanation:
#include <iostream>
#include <string>
using namespace std;
////////////////////////////////////////////////////////////
class Television {
string brand;
float screen_size;
bool powerOn;
int volume;
int channel;
public:
// Comments
Television(string brand, int screen_size) {
this->brand = brand;
this->screen_size = screen_size;
powerOn = false;
volume = 20;
channel = 2;
}
//////////////////////////////////////////
// Comments
int getVolume() {
return volume;
}
// Comments
int getChannel() {
return channel;
}
// Comments
string getManufacturer() {
return brand;
}
// Comments
float getScreenSize() {
screen_size;
}
///////////////////////////////////////////
// Comments
void setChannel(int channel) {
this->channel = channel;
}
// Comments
void power() {
if (!powerOn)
powerOn = !powerOn;
}
// Comments
void increaseVolume() {
volume = volume + 1;
}
// Comments
void decreseVolume() {
volume = volume - 1;
}
};
