Answer:
<em>Empirical technical </em>research has a fundamental objective, which is to provide objective and independent information on the quality of the product to the interested party or stakeholder. It is one more activity in the quality control process.
Explanation:
Testing is basically a set of activities within software development. Depending on the type of tests, these activities may be implemented at any time during said development process. There are different software development models, as well as test models. Each one has a different level of involvement in development activities.
In a full penetration testing process, there are pre-instances to run this tool, but to take the first steps it is probably the best way to start. Nmap is a network scanning tool that allows you to identify what services are running on a remote device, as well as the identification of active computers, operating systems on the remote computer, existence of filters or firewalls, among others.
In simple words, when a server or device is going to be attacked, the attacker can carry out different attacks depending on the service: it is not the same to damage a web server, a database server or a perimeter router. Therefore, in any deployment, the first step will be to identify the services in the infrastructure, to decide how to proceed and, considering that in a penetration test the steps of an attacker are “imitated”, it will also be started in the same way.
Answer:
ask customers to use strong passwords to protect their accounts
Answer:
The power function can be written as a recursive function (using Java) as follows:
- static int power(int x, int n)
- {
- if(n == 0){
- return 1;
- }
- else {
- return power(x, n-1 ) * x;
- }
- }
Explanation:
A recursive function is a function that call itself during run time.
Based on the question, we know x to the 0th power is 1. Hence, we can just create a condition if n = 0, return 1 (Line 3 - 5).
Next, we implement the logic "x to the nth power can be obtained by multiplying x to the n-1'th power with x " from the question with the code: return power(x, n-1 ) * x in the else block. (Line 6 -8)
In Line 7, power() function will call itself recursively by passing x and n-1 as arguments. Please note the value of n will be reduced by one for every round of recursive call. This recursive call will stop when n = 0.
Just imagine if we call the function as follows:
int result = power(2, 3);
What happen will be as follows:
- run Line 7 -> return power(2, 2) * 2
- run Line 7 -> return power(2, 1) * 2
- run Line 7 -> return power(1, 0) * 2
- run Line 4 -> return 1 (Recursive call stop here)
Next, the return value from the inner most recursive call will be return to the previous call stack:
- power(1, 0) * 2 -> 1 * 2
- power(2, 1) * 2 -> 1 * 2 * 2
- power(2, 2) * 2 -> 1 * 2 * 2 * 2 - > 8 (final output)
If( caryear >= 2000 ):
print "probably has air bags.\n"
elif( caryear >= 1990 ):
print "probably has anti-lock brakes.\n"
elif( caryear >= 1970 ):
print "probably has seat belts.\n"
else:
print "probably has few safety features.\n"
