Answer: PKI certificates
Explanation: PKI is known as the public key infrastructure which is commonly used for the encryption of the data and also for the data signing. They have the ability to assign the keys pair.
PKI certificates are in the form of strings of alpha-numeric running for a mathematical functions. They use the third party protocols for the execution and they are widely accepted by the authoritative identity.
Answer:
An ISP is an internet service provider. AT&T and Comcast are both popular internet service providers. On the other hand, web hosts are used to host websites like att.com. The web host makes the website accessible by other people.
Explanation:
Answer:
b. foreign key
Explanation:
In the database world, a foreign key is a field on one table and a primary key for another table. The purpose of a foreign key is to provide linkages between two or more tables. Given two tables A and B, and making A the point of reference, a primary key is a field that is unique in A while a foreign key is unique in B.
On another hand, a composite primary key is a combination of two or more fields/columns on database table that can be used to uniquely identify each row in the table.
In the database lingua, what we have is a unique key not a distinct key, though the two words are similar in meaning.
A duplicate key is used when an information may be repeatedly entered on a table.
So the correct option is a foreign key.
send attached file with it
#include using namespace std;int main(){int year = 12,value = 10,total = 0;do{year++;value *= 2;total += value;}while(value*2 < 1000);cout << "Age: " << year << endl;cout << "Last gift: " << value << endl;cout << "Total: " << total << endl;cin.get();return 0;
