There are six categories of security services: authenticiation, access control, data confidentiality, data integrity, nonrepudiation, and availability service. First, is authentication service, which defines as the assurance that the communicator is legitimate and is the one that it claims to be. It can either be peer entity or data origin authentication. Second, access control which is to prevent any unauthorized uses of resources. After one is being authenticiated, then this service limit/controls who access? what accessing rights to the resources are allowed depending on the identified individuals. Data confifentiality: the protection of data from unauthorized disclosure. Data integrity: the assurance that data received are exactly as sent by an authorized entity (e.t.c, contain no modificafion, insertion, deletion, or replay).
Answer:
Act like search engines
Explanation:
They will give you intel on about basically anything and they have their own opinion on it aswell♀️
public static void main()
{
String s = Console.ReadLine();
int len = s.length();
Char startletter = s[0];
Char endletter = s[len-1];
string midletter = ‘’;
if(len % 2 ==0)
midletter = s[len/2] + s[(len/2) +1]
else
midletter = s[len/2];
Console.WriteLine(startletter + midletter + endletter);
}
Here the logic is that, startletter is obtained using the index ‘0’, the last letter is obtained by calculating the “length of the string” and subtract 1 to get the “last index” of the given string.
Middle letter is calculated by first finding whether the given string length is “odd or even” and based on that index(es) are identified.
Answer:
This is what we call SQL Injection.
• SQL Injection is when an attacker compromises your database only if it is vulnerable.
• Vulnerability includes leaving an empty ""(value) or forgetting to close anything that could be attacked.
• Ways to prevent injection is to not use string concatenation.
(<em>ex.</em> "hello" + "world")
* Use parameterized queries.
* Immediately get rid of any unused code.
Answer:
There are many factors that cause aggregate demand to shift from AD to AD1. The unemployment rate will fall and inflation will increase.
<u>Explanation:</u>
A Shift in aggregate demand from AD to AD1 means there has been a fall in demand. Various factors that cause demand to decrease are:
- Increase in price of a good itself
- Increase in the price of complimentary goods-This will lead to a fall in demand. Like ink and pen are complementary goods. if the Price of ink increases then demand for pen will decrease.
- A Decrease in the price of substitute goods-Like tea and coffee.
- Expectation regarding future fall in price
So due to the decrease in demand finally the unemployment will increase and with that, the inflation rate will increase making things dearer.
