Answer:
d. All of the above
Explanation:
Physical layer is the lowest layer of the OSI reference model that deals with the setup of physical connection to the network and with transmission and reception of signals.
Full duplex (FDx) is a bidirectional type of communication system where two end nodes send and receive data signals at the same time, and a single carrier is simultaneously used for dual communication.
To send or receive data, the participating nodes in a Full Duplex system do not have to wait for a free carrier/medium. It employs a medium that has at least two internal channels - one for sending and one for receiving.
Based on the above explanations, options A, B and C are valid and are correct ways to accomplish full-duplex (FDX) digital communications on guided medium at the physical layer (OSI Layer 1). There all of them are correct.
If a client initiates the SMTP communication using an EHLO (Extended Hello) command instead of the HELO command some additional SMTP commands are often available. They are often referred to as Extended SMTP (ESMTP) commands or SMTP service extensions. Every server can have its own set of extended SMTP commands.
The software is written in C++ and may be found in the explanation section below. C++ keywords and symbols are all capitalized. The least number of all three integers is determined via a nested if-else decision branch. After you've entered three integers, the application prints the least of them all.
<h3>
What is the example of C++?</h3>
#include <iostream>
using namespace std;
int main() {
int num1,num2,num3;
cout<<"enter first integers"<<endl;
cin>>num1;
cout<<"enter second integers"<<endl;
cin>>num2;
cout<<"enter the third integers"<<endl;
cin>>num3;
if(num1<num2){
if(num1<num3){
cout<<"Smallest integer is "<<num1<<endl;
} else{
cout<<"Smallest integer is "<<num3<<endl;
}
}else {
if(num2<num3){
cout<<"Smallest integer is "<<num2<<endl;
} else{
cout<<"Smallest integer is "<<num3<<endl;
}
}
return 0;
}
Thus, it is written in C++ language.
For more details about C++ click here:
brainly.com/question/19581899
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<h2>Sure, I wanna talk. (: .........................</h2>