One way that a newspaper design may change in the future is that they will only be available in an interactive online edition. The correct answer is B. <span />
Answer:
columns, rows
Explanation:
In Computer programming, a atabase schema refers to the logical design of the database while the database instance refers to a snapshot of the data found in a database at a given instant in time.
Basically, in database management, the term "schema" is used to denote a representation of data while the term "instance" is used to denote an instance of time.
A database schema is a structure which is typically used to represent the logical design of the database and as such represents how data are stored or organized and the relationships existing in a database management system. There are two (2) main categories of a database schema; physical database schema and logical database schema.
Also, a database instance is a snapshot of the data in the database at a given instant in time and as such represents an operational database by following the conditions, validation and constraints set for a database management system.
These data can be stored or organized in a database management system through the use of multiple-column record formats.
In a multiple-column record of a data file, columns represent different variables and rows represent different cases (respondents) such as experimental data, independent observations etc.
Explanation:
These are the advantages of breaking up a single logical message into a number of fixed sized packets.
- When messages are broken into packets it increases the performance and also the reliability of the internet
- if there is an error in a single packet, this error is not going to affect the entire message.
- the efficiency of the communication line in the internet is improved.
- there is a reduction of traffic. Each packet in a single message can be transmitted through different routes.
- It reduces idleness as each packet can send from different program so each program has a service.
Answer:
The code is given in the explanation section
Explanation:
//Class Airconditioner
public class AirConditioner {
private boolean turnOnOff;
//The Constructor
public AirConditioner(boolean turnOnOff) {
this.turnOnOff = turnOnOff;
}
//method turn_on
public void turn_on(){
this.turnOnOff = true;
}
//method turn_off
public void turn_off( ){
this.turnOnOff = false;
}
}
// A new class to test the airconditional class
class AircondionTest{
public static void main(String[] args) {
//Creating an object of the Aircondional class
AirConditioner office_a_c = new AirConditioner(false);
//Using the reference varible to call method turn_on
office_a_c.turn_on();
}
}
For most usb devices, power is supplied via the port.
