If it's MS Word (it probably is), then it's Alt + F7
Answer: A) Phishing
Explanation:
Phishing is type of attack in computer field that is processed to hack or steal the data of authorized user.The attacker acts as trusted party and then interacts with the authorized user through email or messages to gain confidential information like pin code, credit card number, login details etc of that user.
- According to the question, colleague is experiencing phishing as he has been requested for pin-code and credit-card number from a wrong source behaving as authorized bank.
- Other options are incorrect because ransomware is attack that asks for ransom from authorized user for reviving their access. on system. Spoofing is falsifying as some other party to receive advantage.
- Mail poisoning is inclusion of inappropriate details in email such as invalid email address etc.
- Thus, the correct option is option(A).
The program is an illustration of string manipulations
<h3>What are string manipulations?</h3>
String manipulations include calculating the lengths of strings and also performing several operations on the string
<h3>The actual program</h3>
The complete program in C++ is as follows:
#include <iostream>
using namespace std;
int main(){
string passwordStr;
cin>>passwordStr;
if(passwordStr.length() <= 7){
cout<<"Valid";
}
else{
cout<<"Invalid";
}
return 0;
}
Read more string manipulation at:
brainly.com/question/14284563
Answer:
The Rouché-Capelli Theorem. This theorem establishes a connection between how a linear system behaves and the ranks of its coefficient matrix (A) and its counterpart the augmented matrix.
![rank(A)=rank\left ( \left [ A|B \right ] \right )\:and\:n=rank(A)](https://tex.z-dn.net/?f=rank%28A%29%3Drank%5Cleft%20%28%20%5Cleft%20%5B%20A%7CB%20%5Cright%20%5D%20%5Cright%20%29%5C%3Aand%5C%3An%3Drank%28A%29)
Then satisfying this theorem the system is consistent and has one single solution.
Explanation:
1) To answer that, you should have to know The Rouché-Capelli Theorem. This theorem establishes a connection between how a linear system behaves and the ranks of its coefficient matrix (A) and its counterpart the augmented matrix.
Then the system is consistent and has a unique solution.
<em>E.g.</em>
2) Writing it as Linear system
3) The Rank (A) is 3 found through Gauss elimination
4) The rank of (A|B) is also equal to 3, found through Gauss elimination:
So this linear system is consistent and has a unique solution.
